19338 etc.: remove support for autoconf before 2.50

6 files changed, 2154 insertions, 2170 deletions

diff --git a/ChangeLog b/ChangeLog
index d0d1103c8..c13429951 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2004-01-08  Peter Stephenson  <pws@csr.com>
+
+	* 19338 adapated (see following thread): .distfiles,
+	Makefile.in, zshconfig.ac, configure.in, configure.ac,
+	Etc/zsh-development-guide: Remove support for autoconf
+	versions before 2.50.
+
 2004-01-06  Peter Stephenson  <pws@csr.com>
 
 	* 19339: Doc/Zsh/tcpsys.yo, Functions/TCP/tcp_fd_handler,
diff --git a/Etc/zsh-development-guide b/Etc/zsh-development-guide
index cba2beaed..0e9abb591 100644
--- a/Etc/zsh-development-guide
+++ b/Etc/zsh-development-guide
@@ -18,10 +18,9 @@ Tools
 To develop (as opposed to just build) zsh, you'll need a few specialised
 tools:
 
-* GNU autoconf, version 2.12 or later.  (Earlier versions mostly work,
-  but part of the configuration system now relies on part of the format
-  of the config.status files that get generated.  See the comments in
-  configure.in and at the end of Src/mkmakemod.sh for an explanation.)
+* GNU autoconf, version 2.50 or later.  This version contained
+  significant enhancements and arlier versions will no
+  longer work.
 
 * GNU m4.  (Required by autoconf.)
 
diff --git a/Makefile.in b/Makefile.in
index db5f5ab48..b0a021be6 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -131,7 +131,7 @@ config: config.h
 config.status: $(sdir)/configure
 	$(SHELL) ./config.status --recheck
 
-$(sdir)/configure: $(sdir)/zshconfig.ac $(sdir)/aclocal.m4 $(sdir)/aczsh.m4 $(sdir)/configure.in $(sdir)/configure.ac
+$(sdir)/configure: $(sdir)/aclocal.m4 $(sdir)/aczsh.m4 $(sdir)/configure.ac
 	cd $(sdir) && autoconf
 
 config.h: stamp-h
@@ -140,7 +140,7 @@ stamp-h: $(sdir)/config.h.in config.status
 	  CONFIG_FILES= CONFIG_HEADERS=$(subdir)/config.h $(SHELL) ./config.status
 
 $(sdir)/config.h.in: $(sdir)/stamp-h.in
-$(sdir)/stamp-h.in: $(sdir)/zshconfig.ac $(sdir)/acconfig.h \
+$(sdir)/stamp-h.in: $(sdir)/configure.ac $(sdir)/acconfig.h \
 		$(sdir)/aclocal.m4 $(sdir)/aczsh.m4
 	cd $(sdir) && autoheader
 	echo > $(sdir)/stamp-h.in
diff --git a/configure.ac b/configure.ac
index 961170861..d2ac27ff7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,2147 @@
+dnl
+dnl  configure.ac: Configure template for zsh.
+dnl  Process this file with autoconf to produce a configure script.
+dnl
+dnl  Copyright (c) 1995-1997 Richard Coleman
+dnl  All rights reserved.
+dnl
+dnl  Permission is hereby granted, without written agreement and without
+dnl  license or royalty fees, to use, copy, modify, and distribute this
+dnl  software and to distribute modified versions of this software for any
+dnl  purpose, provided that the above copyright notice and the following
+dnl  two paragraphs appear in all copies of this software.
+dnl
+dnl  In no event shall Richard Coleman or the Zsh Development Group be liable
+dnl  to any party for direct, indirect, special, incidental, or consequential
+dnl  damages arising out of the use of this software and its documentation,
+dnl  even if Richard Coleman and the Zsh Development Group have been advised of
+dnl  the possibility of such damage.
+dnl
+dnl  Richard Coleman and the Zsh Development Group specifically disclaim any
+dnl  warranties, including, but not limited to, the implied warranties of
+dnl  merchantability and fitness for a particular purpose.  The software
+dnl  provided hereunder is on an "as is" basis, and Richard Coleman and the
+dnl  Zsh Development Group have no obligation to provide maintenance,
+dnl  support, updates, enhancements, or modifications.
+dnl
 
 AC_INIT(Src/zsh.h)
 AC_PREREQ(2.50)
+AC_CONFIG_HEADER(config.h)
+
+dnl What version of zsh are we building ?
+. ${srcdir}/Config/version.mk
+echo "configuring for zsh $VERSION"
+
+dnl ----------------------------------------------
+dnl CHECK FOR MACHINE/VENDOR/OPERATING SYSTEM TYPE
+dnl ----------------------------------------------
+dnl Find out machine type, vendor, and operating system
+dnl What type of host is this?
+AC_CANONICAL_HOST
+AC_DEFINE_UNQUOTED(MACHTYPE, "$host_cpu")
+AC_DEFINE_UNQUOTED(VENDOR,   "$host_vendor")
+AC_DEFINE_UNQUOTED(OSTYPE,   "$host_os")
+
+dnl -----------------------------
+dnl CHECKING COMMAND LINE OPTIONS
+dnl -----------------------------
+dnl Handle --program-prefix, --program-suffix, etc.
+zsh_ARG_PROGRAM
+
+dnl Handle setting of compile flags (CPPFLAGS, CFLAGS, LDFLAGS, LIBS).
+zsh_COMPILE_FLAGS($CPPFLAGS, $CFLAGS, $LDFLAGS, $LIBS)
+
+dnl Do you want to debug zsh?
+ifdef([zsh-debug],[undefine([zsh-debug])])dnl
+AC_ARG_ENABLE(zsh-debug,
+[  --enable-zsh-debug         compile with debug code and debugger symbols],
+[if test x$enableval = xyes; then
+  AC_DEFINE(DEBUG)
+fi])
+
+dnl Do you want zsh memory allocation routines.
+ifdef([zsh-mem],[undefine([zsh-mem])])dnl
+AC_ARG_ENABLE(zsh-mem,
+[  --enable-zsh-mem           compile with zsh memory allocation routines],
+[if test x$enableval = xyes; then
+  AC_DEFINE(ZSH_MEM)
+fi])
+
+dnl Do you want to debug zsh memory allocation routines.
+ifdef([zsh-mem-debug],[undefine([zsh-mem-debug])])dnl
+AC_ARG_ENABLE(zsh-mem-debug,
+[  --enable-zsh-mem-debug     debug zsh memory allocation routines],
+[if test x$enableval = xyes; then
+  AC_DEFINE(ZSH_MEM_DEBUG)
+fi])
+
+dnl Do you want to print warnings when errors in memory allocation.
+ifdef([zsh-mem-warning],[undefine([zsh-mem-warning])])dnl
+AC_ARG_ENABLE(zsh-mem-warning,
+[  --enable-zsh-mem-warning   print warnings for errors in memory allocation],
+[if test x$enableval = xyes; then
+  AC_DEFINE(ZSH_MEM_WARNING)
+fi])
+
+dnl Do you want to turn on error checking for free().
+ifdef([zsh-secure-free],[undefine([zsh-secure-free])])dnl
+AC_ARG_ENABLE(zsh-secure-free,
+[  --enable-zsh-secure-free   turn on error checking for free()],
+[if test x$enableval = xyes; then
+  AC_DEFINE(ZSH_SECURE_FREE)
+fi])
+
+dnl Do you want debugging information on internal hash tables.
+dnl This turns on the `hashinfo' builtin command.
+ifdef([zsh-hash-debug],[undefine([zsh-hash-debug])])dnl
+AC_ARG_ENABLE(zsh-hash-debug,
+[  --enable-zsh-hash-debug    turn on debugging of internal hash tables],
+[if test x$enableval = xyes; then
+  AC_DEFINE(ZSH_HASH_DEBUG)
+fi])
+
+dnl Pathnames for global zsh scripts
+ifdef([etcdir],[undefine([etcdir])])dnl
+AC_ARG_ENABLE(etcdir,
+[  --enable-etcdir=DIR        the default directory for global zsh scripts],
+[etcdir="$enableval"], [etcdir=/etc])
+
+ifdef([zshenv],[undefine([zshenv])])dnl
+AC_ARG_ENABLE(zshenv,
+[  --enable-zshenv=FILE       the full pathname of the global zshenv script],
+[zshenv="$enableval"],
+[if test "x$etcdir" = xno; then
+  zshenv=no
+else
+  zshenv="$etcdir/zshenv"
+fi])
+if test "x$zshenv" != xno; then
+  AC_DEFINE_UNQUOTED(GLOBAL_ZSHENV, "$zshenv")
+fi
+
+ifdef([zshrc],[undefine([zshrc])])dnl
+AC_ARG_ENABLE(zshrc,
+[  --enable-zshrc=FILE        the full pathname of the global zshrc script],
+[zshrc="$enableval"],
+[if test "x$etcdir" = xno; then
+  zshrc=no
+else
+  zshrc="$etcdir/zshrc"
+fi])
+if test "x$zshrc" != xno; then
+  AC_DEFINE_UNQUOTED(GLOBAL_ZSHRC, "$zshrc")
+fi
+
+ifdef([zprofile],[undefine([zprofile])])dnl
+AC_ARG_ENABLE(zprofile,
+[  --enable-zprofile=FILE     the full pathname of the global zprofile script],
+[zprofile="$enableval"],
+[if test "x$etcdir" = xno; then
+  zprofile=no
+else
+  zprofile="$etcdir/zprofile"
+fi])
+if test "x$zprofile" != xno; then
+  AC_DEFINE_UNQUOTED(GLOBAL_ZPROFILE, "$zprofile")
+fi
+
+ifdef([zlogin],[undefine([zlogin])])dnl
+AC_ARG_ENABLE(zlogin,
+[  --enable-zlogin=FILE       the full pathname of the global zlogin script],
+[zlogin="$enableval"],
+[if test "x$etcdir" = xno; then
+  zlogin=no
+else
+  zlogin="$etcdir/zlogin"
+fi])
+if test "x$zlogin" != xno; then
+  AC_DEFINE_UNQUOTED(GLOBAL_ZLOGIN, "$zlogin")
+fi
+
+ifdef([zlogout],[undefine([zlogout])])dnl
+AC_ARG_ENABLE(zlogout,
+[  --enable-zlogout=FILE      the full pathname of the global zlogout script],
+[zlogout="$enableval"],
+[if test "x$etcdir" = xno; then
+  zlogout=no
+else
+  zlogout="$etcdir/zlogout"
+fi])
+if test "x$zlogout" != xno; then
+  AC_DEFINE_UNQUOTED(GLOBAL_ZLOGOUT, "$zlogout")
+fi
+
+AC_SUBST(zshenv)dnl
+AC_SUBST(zshrc)dnl
+AC_SUBST(zprofile)dnl
+AC_SUBST(zlogin)dnl
+AC_SUBST(zlogout)dnl
+
+dnl Do you want large file support, if available?
+ifdef([lfs],[undefine([lfs])])dnl
+AC_ARG_ENABLE(lfs,
+[  --disable-lfs              turn off support for large files],
+[lfs="$enableval"], [lfs=yes])
+
+dnl Do you want dynamically loaded binary modules.
+ifdef([dynamic],[undefine([dynamic])])dnl
+AC_ARG_ENABLE(dynamic,
+[  --disable-dynamic          turn off dynamically loaded binary modules],
+[dynamic="$enableval"], [dynamic=yes])
+
+dnl Do you want to disable restricted on r* commands
+ifdef([restricted-r],[undefine([restricted-r])])dnl
+AC_ARG_ENABLE(restricted-r,
+[  --disable-restricted-r     turn off r* invocation for restricted shell],
+[if test x$enableval = xyes; then
+  AC_DEFINE(RESTRICTED_R)
+fi],
+AC_DEFINE(RESTRICTED_R)
+)
+
+dnl Do you want to disable use of locale functions
+AC_ARG_ENABLE([locale],
+[  --disable-locale           turn off locale features],
+[if test x$enableval = xyes; then
+  AC_DEFINE(CONFIG_LOCALE)
+fi],
+AC_DEFINE(CONFIG_LOCALE)
+)
+
+dnl Do you want to compile as K&R C.
+AC_ARG_ENABLE(ansi2knr,
+[  --enable-ansi2knr          translate source to K&R C before compiling],
+[ansi2knr="$enableval"], [ansi2knr=default])
+
+ifdef([fndir],[undefine([fndir])])dnl
+AC_ARG_ENABLE(fndir,
+[  --enable-fndir=DIR         the directory in which to install functions],
+dnl ${VERSION} to be determined at compile time.
+[if test $enableval = yes; then
+  fndir=${datadir}/${tzsh_name}/'${VERSION}'/functions
+else
+  fndir="$enableval"
+fi], [fndir=${datadir}/${tzsh_name}/'${VERSION}'/functions])
+
+ifdef([sitefndir],[undefine([sitefndir])])dnl
+AC_ARG_ENABLE(site-fndir,
+[  --enable-site-fndir=DIR    same for site functions (not version specific)],
+[if test $enableval = yes; then
+  sitefndir=${datadir}/${tzsh_name}/site-functions
+else
+  sitefndir="$enableval"
+fi], [sitefndir=${datadir}/${tzsh_name}/site-functions])
+
+ifdef([function_subdirs],[undefine([function_subdirs])])
+AC_ARG_ENABLE(function-subdirs,
+[  --enable-function-subdirs  install functions in subdirectories])
+
+if test "x${enable_function_subdirs}" != x &&
+  test "x${enable_function_subdirs}" != xno; then
+  FUNCTIONS_SUBDIRS=yes
+else
+  FUNCTIONS_SUBDIRS=no
+fi
+
+AC_SUBST(fndir)dnl
+AC_SUBST(sitefndir)dnl
+AC_SUBST(FUNCTIONS_SUBDIRS)dnl
+
+dnl Do you want maildir support?
+ifdef([maildir_support],[undefine([maildir_support])])dnl
+AC_ARG_ENABLE(maildir-support,
+[  --enable-maildir-support   enable maildir support in MAIL and MAILPATH],
+[if test x$enableval = xyes; then
+  AC_DEFINE(MAILDIR_SUPPORT)
+fi])
+
+dnl Do you want to set a maximum function depth?
+ifdef([max_function_depth],[undefine([max_function_depth])])dnl
+AC_ARG_ENABLE(max-function-depth,
+[  --enable-max-function-depth=MAX   limit function depth to MAX],
+[if test x$enableval = xyes; then
+  AC_DEFINE(MAX_FUNCTION_DEPTH, 4096)
+else
+  AC_DEFINE_UNQUOTED(MAX_FUNCTION_DEPTH, $enableval)
+fi])
+
+dnl ------------------
+dnl CHECK THE COMPILER
+dnl ------------------
+dnl We want these before the checks, so the checks can modify their values.
+test -z "${CFLAGS+set}"  && CFLAGS=  auto_cflags=1
+test -z "${LDFLAGS+set}" && LDFLAGS= auto_ldflags=1
+
+AC_PROG_CC
+
+dnl Check for large file support.
+dnl This needs to be done early to get the stuff into the flags.
+if test $lfs != no; then
+dnl Gross hack for ReliantUNIX - GCC does not understand getconf options
+dnl For now just disable LFS in this case
+dnl Any takers?
+  if test "$host" = mips-sni-sysv4 && test -n "$GCC"; then
+    : 
+  else
+    zsh_LARGE_FILE_SUPPORT
+  fi
+fi
+
+dnl if the user hasn't specified CFLAGS, then
+dnl   if compiler is gcc, then use -O2 and some warning flags
+dnl   else use -O
+if test -n "$auto_cflags" && test ."$ansi2knr" != .yes; then
+  if test "${enable_zsh_debug}" = yes; then
+    if test -n "$GCC"; then
+      CFLAGS="$CFLAGS -Wall -Wmissing-prototypes -ggdb"
+    else
+      CFLAGS="$CFLAGS -g"
+    fi
+  else
+    if test -n "$GCC"; then
+      CFLAGS="$CFLAGS -Wall -Wmissing-prototypes -O2"
+    else
+      CFLAGS="$CFLAGS -O"
+    fi
+  fi
+fi
+if test -n "$auto_ldflags"; then
+  case "${enable_zsh_debug}$host_os" in
+    yesaix*|yeshpux*|yesnetbsd*|yesopenbsd*) ;;  # "ld -g" is not valid on these systems
+    darwin*) LDFLAGS=-Wl,-x ;;
+    yes*)    LDFLAGS=-g ;;
+    *)       LDFLAGS=-s ;;
+  esac
+fi
+
+dnl ----------
+dnl SCO KLUDGE
+dnl ----------
+dnl Sco doesn't define any useful compiler symbol,
+dnl so we will check for sco and define __sco if
+dnl found.
+case "$host_os" in
+  sco*) CFLAGS="-D__sco $CFLAGS" ;;
+esac
+
+sed=':1
+     s/ -s / /g
+     t1
+     s/^ *//
+     s/ *$//'
+
+case " $LDFLAGS " in
+  *" -s "*) strip_exeldflags=true strip_libldflags=true
+    LDFLAGS=`echo " $LDFLAGS " | sed "$sed"` ;;
+  *) strip_exeldflags=false strip_libldflags=false ;;
+esac
+
+case " ${EXELDFLAGS+$EXELDFLAGS }" in
+  " ") ;;
+  *" -s "*) strip_exeldflags=true
+    EXELDFLAGS=`echo " $EXELDFLAGS " | sed "$sed"` ;;
+  *) strip_exeldflags=false ;;
+esac
+
+case " ${LIBLDFLAGS+$LIBLDFLAGS }" in
+  " ") ;;
+  *" -s "*) strip_libldflags=true
+    LIBLDFLAGS=`echo " $LIBLDFLAGS " | sed "$sed"` ;;
+  *) strip_libldflags=false ;;
+esac
+
+AC_SUBST(CFLAGS)dnl
+AC_SUBST(LDFLAGS)dnl
+AC_SUBST(EXELDFLAGS)dnl
+AC_SUBST(LIBLDFLAGS)dnl
+
+AC_PROG_CPP                 dnl Figure out how to run C preprocessor.
+AC_PROG_GCC_TRADITIONAL     dnl Do we need -traditional flag for gcc.
+AC_C_CONST                  dnl Does compiler support `const'.
+
+AC_CYGWIN                   dnl Check for cygwin environment
+
+AC_EXEEXT                   dnl Check for executable extension, e.g. .exe
+
+fp_PROG_CC_STDC
+AC_MSG_CHECKING([whether to use prototypes])
+if test ."$ansi2knr" = .yes || test ."$ansi2knr" = .no; then
+  msg="(overridden) "
+else
+  msg=
+  if test ."$fp_cv_prog_cc_stdc" = .no; then
+    ansi2knr=yes
+  else
+    ansi2knr=no
+  fi
+fi
+if test "$ansi2knr" = yes; then
+  AC_MSG_RESULT(${msg}no)
+  U=_
+else
+  AC_MSG_RESULT(${msg}yes)
+  AC_DEFINE(PROTOTYPES)
+  U=
+fi
+AC_SUBST(U)
+
+AC_FUNC_ALLOCA              dnl Check how to get `alloca'.
+
+dnl If the compiler supports union initialisation
+AC_CACHE_CHECK(if the compiler supports union initialisation,
+zsh_cv_c_have_union_init,
+[AC_TRY_COMPILE([union{void *p;long l;}u={0};], [u.l=1;],
+  zsh_cv_c_have_union_init=yes,
+  zsh_cv_c_have_union_init=no)])
+if test $zsh_cv_c_have_union_init = yes; then
+  AC_DEFINE(HAVE_UNION_INIT)
+fi
+
+dnl  Checking if compiler correctly cast signed to unsigned.
+AC_CACHE_CHECK(if signed to unsigned casting is broken,
+zsh_cv_c_broken_signed_to_unsigned_casting,
+[AC_TRY_RUN([main(){return((int)(unsigned char)((char) -1) == 255);}],
+  zsh_cv_c_broken_signed_to_unsigned_casting=yes,
+  zsh_cv_c_broken_signed_to_unsigned_casting=no,
+  zsh_cv_c_broken_signed_to_unsigned_casting=no)])
+if test $zsh_cv_c_broken_signed_to_unsigned_casting = yes; then
+  AC_DEFINE(BROKEN_SIGNED_TO_UNSIGNED_CASTING)
+fi
+
+dnl Checking if the compiler supports variable-length arrays
+AC_CACHE_CHECK(if the compiler supports variable-length arrays,
+zsh_cv_c_variable_length_arrays,
+[AC_TRY_COMPILE([int foo(), n;], [int i[foo()], a[n+1];],
+  zsh_cv_c_variable_length_arrays=yes,
+  zsh_cv_c_variable_length_arrays=no)])
+if test $zsh_cv_c_variable_length_arrays = yes; then
+  AC_DEFINE(HAVE_VARIABLE_LENGTH_ARRAYS)
+fi
+
+dnl ------------------
+dnl CHECK FOR PROGRAMS
+dnl ------------------
+AC_PROG_MAKE_SET            dnl Does make define $MAKE
+AC_PROG_INSTALL             dnl Check for BSD compatible `install'
+AC_PROG_AWK                 dnl Check for mawk,gawk,nawk, then awk.
+AC_PROG_LN                  dnl Check for working ln, for "make install"
+AC_CHECK_PROGS([YODL], [yodl], [: yodl])
+AC_CHECK_PROGS([ANSI2KNR], [ansi2knr], [: ansi2knr])
+
+if test x"$ansi2knr" = xyes && test x"$ANSI2KNR" = x": ansi2knr"; then
+    echo "----------"
+    echo "configure fatal error:"
+    echo "ansi2knr was specified (--enable-ansi2knr) but the program could not be found."
+    echo "Either remove the configure option if it is not required or build the ansi2knr"
+    echo "program before reconfiguring Zsh.  The source code for ansi2knr is also"
+    echo "available in the GPL directory on Zsh distribution sites."
+    exit 1
+fi
+
+dnl ------------------
+dnl CHECK HEADER FILES
+dnl ------------------
+AC_HEADER_DIRENT
+AC_HEADER_STDC
+AC_HEADER_TIME
+AC_HEADER_STAT
+AC_HEADER_SYS_WAIT
+
+oldcflags="$CFLAGS"
+AC_CHECK_PROG([PCRECONF], pcre-config, pcre-config)
+if test "x$ac_cv_prog_PCRECONF" = xpcre-config; then
+  CFLAGS="$CFLAGS `pcre-config --cflags`"
+fi
+
+AC_CHECK_HEADERS(sys/time.h sys/times.h sys/select.h termcap.h termio.h \
+		 termios.h sys/param.h sys/filio.h string.h memory.h \
+		 limits.h fcntl.h libc.h sys/utsname.h sys/resource.h \
+		 locale.h errno.h stdio.h stdlib.h unistd.h sys/capability.h \
+		 utmp.h utmpx.h sys/types.h pwd.h grp.h poll.h sys/mman.h \
+		 netinet/in_systm.h pcre.h langinfo.h wchar.h stddef.h)
+if test $dynamic = yes; then
+  AC_CHECK_HEADERS(dlfcn.h)
+  AC_CHECK_HEADERS(dl.h)
+fi
+
+dnl Some SCO systems cannot include both sys/time.h and sys/select.h
+if test $ac_cv_header_sys_time_h = yes && test $ac_cv_header_sys_select_h = yes; then
+  AC_CACHE_CHECK(for conflicts in sys/time.h and sys/select.h,
+  zsh_cv_header_time_h_select_h_conflicts,
+  [AC_TRY_COMPILE([#include <sys/time.h>
+#include <sys/select.h>], [int i;],
+  zsh_cv_header_time_h_select_h_conflicts=no,
+  zsh_cv_header_time_h_select_h_conflicts=yes)])
+  if test $zsh_cv_header_time_h_select_h_conflicts = yes; then
+    AC_DEFINE(TIME_H_SELECT_H_CONFLICTS)
+  fi
+fi
+
+AC_CACHE_CHECK(POSIX termios, zsh_cv_sys_posix_termios,
+[AC_TRY_LINK([#include <sys/types.h>
+#include <unistd.h>
+#include <termios.h>],
+[/* SunOS 4.0.3 has termios.h but not the library calls.  */
+tcgetattr(0, 0);],
+  zsh_cv_sys_posix_termios=yes, zsh_cv_sys_posix_termios=no)])
+
+if test $zsh_cv_sys_posix_termios = yes; then
+  AC_CACHE_CHECK(TIOCGWINSZ in termios.h,
+  zsh_cv_header_termios_h_tiocgwinsz,
+  [AC_TRY_LINK([#include <sys/types.h>
+#include <termios.h>],
+  [int x = TIOCGWINSZ;],
+  zsh_cv_header_termios_h_tiocgwinsz=yes,
+  zsh_cv_header_termios_h_tiocgwinsz=no)])
+else
+  zsh_cv_header_termios_h_tiocgwinsz=no
+fi
+ 
+if test $zsh_cv_header_termios_h_tiocgwinsz = no; then
+  AC_CACHE_CHECK(TIOCGWINSZ in sys/ioctl.h,
+  zsh_cv_header_sys_ioctl_h_tiocgwinsz,
+  [AC_TRY_LINK([#include <sys/types.h>
+#include <sys/ioctl.h>],
+  [int x = TIOCGWINSZ;],
+  zsh_cv_header_sys_ioctl_h_tiocgwinsz=yes,
+  zsh_cv_header_sys_ioctl_h_tiocgwinsz=no)])
+  if test $zsh_cv_header_sys_ioctl_h_tiocgwinsz = yes; then
+    AC_DEFINE(GWINSZ_IN_SYS_IOCTL)
+  fi
+fi
+ 
+AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM))
+
+dnl -------------------
+dnl CHECK FOR LIBRARIES
+dnl -------------------
+
+dnl On some systems, modules need to be linked against libc explicitly,
+dnl in case they require objects that exist only in the static version
+dnl and might not be compiled into the zsh executable.
+dnl On ReliantUNIX -lc better be the last library, else funny things
+dnl may happen.
+AC_CHECK_LIB(c, printf, [LIBS="$LIBS -lc"])
+
+AC_CHECK_LIB(m, pow)
+
+dnl Prefer BSD termcap library to SysV curses library, except on certain
+dnl SYSV-derived systems.
+dnl On HPUX, Hcurses is reported to work better than curses.
+AC_ARG_WITH(curses-terminfo,
+[  --with-curses-terminfo     use terminfo support from curses library],
+[if test x$withval = xyes; then
+  termcap_curses_order="tinfo curses ncurses termcap"
+  AC_SEARCH_LIBS(tigetstr, [$termcap_curses_order])
+else
+  termcap_curses_order="tinfo termcap curses ncurses"
+fi],
+[case "$host_os" in
+  hpux10.*|hpux11.*|solaris*)
+      termcap_curses_order="Hcurses curses ncurses termcap" ;;
+  *)             termcap_curses_order="tinfo termcap curses ncurses" ;;
+esac])dnl
+
+AC_SEARCH_LIBS(tgetent, [$termcap_curses_order])
+case "$LIBS" in
+*curses*)
+AC_CHECK_HEADERS(curses.h, [],
+[AC_CACHE_CHECK(for Solaris 8 curses.h mistake, ac_cv_header_curses_solaris,
+AC_TRY_COMPILE([#include <curses.h>], [],
+[ac_cv_header_curses_h=yes
+ac_cv_header_curses_solaris=yes],
+ac_cv_header_curses_h=no
+ac_cv_header_curses_solaris=no))
+if test x$ac_cv_header_curses_solaris = xyes; then
+AC_DEFINE(HAVE_CURSES_H)
+fi])
+AC_CHECK_HEADERS(term.h,
+[AC_MSG_CHECKING(if term.h needs curses.h)
+AC_TRY_COMPILE([#include <term.h>], [char **test = boolcodes;], boolcodes_with_only_term_h=yes,
+boolcodes_with_only_term_h=no)
+AC_TRY_COMPILE([#include <curses.h>
+#include <term.h>], [char **test = boolcodes;], boolcodes_with_curses_h_and_term_h=yes,
+boolcodes_with_curses_h_and_term_h=no)
+if test "x$boolcodes_with_curses_h_and_term_h" = xyes && test "x$boolcodes_with_only_term_h" = xno;
+then
+AC_DEFINE(TERM_H_NEEDS_CURSES_H)
+AC_MSG_RESULT(yes)
+else
+AC_MSG_RESULT(no)
+fi
+
+AC_MSG_CHECKING(if boolcodes is available)
+AC_TRY_LINK([#ifdef TERM_H_NEEDS_CURSES_H
+#include <curses.h>
+#endif
+#include <term.h>], [char **test = boolcodes; printf(*test);],
+AC_DEFINE(HAVE_BOOLCODES) boolcodes=yes, boolcodes=no)
+AC_MSG_RESULT($boolcodes)
+AC_MSG_CHECKING(if numcodes is available)
+AC_TRY_LINK([#ifdef TERM_H_NEEDS_CURSES_H
+#include <curses.h>
+#endif
+#include <term.h>], [char **test = numcodes; printf(*test);],
+AC_DEFINE(HAVE_NUMCODES) numcodes=yes, numcodes=no)
+AC_MSG_RESULT($numcodes)
+AC_MSG_CHECKING(if strcodes is available)
+AC_TRY_LINK([#ifdef TERM_H_NEEDS_CURSES_H
+#include <curses.h>
+#endif
+#include <term.h>], [char **test = strcodes; printf(*test);],
+AC_DEFINE(HAVE_STRCODES) strcodes=yes, strcodes=no)
+AC_MSG_RESULT($strcodes)
+AC_MSG_CHECKING(if boolnames is available)
+AC_TRY_LINK([#include <curses.h>
+#include <term.h>], [char **test = boolnames; printf(*test);],
+AC_DEFINE(HAVE_BOOLNAMES) boolnames=yes, boolnames=no)
+AC_MSG_RESULT($boolnames)
+AC_MSG_CHECKING(if numnames is available)
+AC_TRY_LINK([#include <curses.h>
+#include <term.h>], [char **test = numnames; printf(*test);],
+AC_DEFINE(HAVE_NUMNAMES) numnames=yes, numnames=no)
+AC_MSG_RESULT($numnames)
+AC_MSG_CHECKING(if strnames is available)
+AC_TRY_LINK([#include <curses.h>
+#include <term.h>], [char **test = strnames; printf(*test);],
+AC_DEFINE(HAVE_STRNAMES) strnames=yes, strnames=no)
+AC_MSG_RESULT($strnames)
+]);;
+esac
+
+dnl Some systems (Solaris 2.x, Linux Redhat 5.x) require
+dnl libnsl (Network Services Library) to find yp_all
+
+AC_SEARCH_LIBS(yp_all, nsl)
+
+dnl I am told that told that unicos reqire these for nis_list
+if test `echo $host_os | sed 's/^\(unicos\).*/\1/'` = unicos; then
+  LIBS="-lcraylm -lkrb -lnisdb -lnsl -lrpcsvc $LIBS"
+fi
+
+if test "x$dynamic" = xyes; then
+  AC_CHECK_LIB(dl, dlopen)
+fi
+
+AC_CHECK_LIB(cap, cap_get_proc)
+
+AC_CHECK_LIB(socket, socket)
+
+AC_CHECK_LIB(iconv, iconv)
+
+dnl pcre-config should probably be employed here
+AC_SEARCH_LIBS(pcre_compile, pcre)
+
+dnl ---------------------
+dnl CHECK TERMCAP LIBRARY
+dnl ---------------------
+dnl Checks for external variable ospeed in the termcap library.
+AC_CACHE_CHECK(if an include file defines ospeed,
+zsh_cv_decl_ospeed_include_defines,
+[AC_TRY_LINK(
+[#include <sys/types.h>
+#if HAVE_TERMIOS_H
+#include <termios.h>
+#endif
+#if HAVE_TERMCAP_H
+#include <termcap.h>
+#endif], [ospeed = 0;],
+zsh_cv_decl_ospeed_include_defines=yes,
+zsh_cv_decl_ospeed_include_defines=no)])
+
+if test $zsh_cv_decl_ospeed_include_defines = no; then
+  AC_CACHE_CHECK(if you must define ospeed,
+  zsh_cv_decl_ospeed_must_define,
+  [AC_TRY_LINK( ,[extern short ospeed; ospeed = 0;],
+  zsh_cv_decl_ospeed_must_define=yes,
+  zsh_cv_decl_ospeed_must_define=no)])
+fi
+
+if test $zsh_cv_decl_ospeed_include_defines = yes; then
+  AC_DEFINE(HAVE_OSPEED)
+elif test $zsh_cv_decl_ospeed_must_define = yes; then
+  AC_DEFINE(HAVE_OSPEED)
+  AC_DEFINE(MUST_DEFINE_OSPEED)
+fi
+
+dnl --------------
+dnl CHECK TYPEDEFS
+dnl --------------
+
+AC_TYPE_SIGNAL
+AC_TYPE_PID_T
+AC_TYPE_OFF_T
+AC_CHECK_TYPE(ino_t, unsigned long)
+AC_TYPE_MODE_T
+AC_TYPE_UID_T
+AC_TYPE_SIZE_T
+
+dnl ------------------------------------------------
+dnl Check size of long and try to find a 64-bit type
+dnl ------------------------------------------------
+dnl AC_CHECK_SIZEOF is no good, because we need the result here,
+dnl and that doesn't seem to define a shell parameter.
+AC_CACHE_CHECK(if long is 64 bits, zsh_cv_long_is_64_bit,
+[AC_TRY_RUN([int main() { return sizeof(long) < 8; }],
+zsh_cv_long_is_64_bit=yes,
+zsh_cv_long_is_64_bit=no,
+zsh_cv_long_is_64_bit=no)])
+
+if test $zsh_cv_long_is_64_bit = yes; then
+  AC_DEFINE(LONG_IS_64_BIT)
+else
+  AC_CACHE_CHECK(if off_t is 64 bit, zsh_cv_off_t_is_64_bit,
+  [AC_TRY_RUN([
+#include <sys/types.h>
+
+main() { return sizeof(off_t) < 8; }
+],
+  zsh_cv_off_t_is_64_bit=yes,
+  zsh_cv_off_t_is_64_bit=no,
+  zsh_cv_off_t_is_64_bit=no)])
+  if test $zsh_cv_off_t_is_64_bit = yes; then
+    AC_DEFINE(OFF_T_IS_64_BIT)
+  fi
+
+  AC_CACHE_CHECK(if ino_t is 64 bit, zsh_cv_ino_t_is_64_bit,
+  [AC_TRY_RUN([
+#include <sys/types.h>
+
+main() { return sizeof(ino_t) < 8; }
+],
+  zsh_cv_ino_t_is_64_bit=yes,
+  zsh_cv_ino_t_is_64_bit=no,
+  zsh_cv_ino_t_is_64_bit=no)])
+  if test $zsh_cv_ino_t_is_64_bit = yes; then
+    AC_DEFINE(INO_T_IS_64_BIT)
+  fi
+
+  if test $lfs != no -o $zsh_cv_off_t_is_64_bit = yes \
+  -o $zsh_cv_ino_t_is_64_bit = yes; then
+    AC_CACHE_CHECK(if compiler has a 64 bit type, zsh_cv_64_bit_type,
+    [if test $lfs != yes && test $lfs != no; then
+      zsh_64_BIT_TYPE(${lfs}, zsh_cv_64_bit_type, force)
+     else
+       zsh_64_BIT_TYPE(long long, zsh_cv_64_bit_type)
+       if test "$zsh_cv_64_bit_type" = no; then
+         zsh_64_BIT_TYPE(quad_t, zsh_cv_64_bit_type)
+       fi
+       if test "$zsh_cv_64_bit_type" = no; then
+         zsh_64_BIT_TYPE(__int64_t, zsh_cv_64_bit_type)
+       fi
+       dnl As a last resort, if we know off_t has 64 bits, use that as
+       dnl the 64-bit integer type.  I don't dare try ino_t since there's
+       dnl probably nothing to stop that being unsigned.
+       if test "$zsh_cv_64_bit_type" = no &&
+          test "$zsh_cv_off_t_is_64_bit" = yes; then
+         zsh_64_BIT_TYPE(off_t, zsh_cv_64_bit_type)
+       fi
+     fi])
+    if test "$zsh_cv_64_bit_type" != no; then
+      AC_DEFINE_UNQUOTED(ZSH_64_BIT_TYPE, $zsh_cv_64_bit_type)
+
+      dnl Handle cases where unsigned type cannot be simply
+      dnl `unsigned ZSH_64_BIT_TYPE'.  More tests may be required.
+      AC_CACHE_CHECK(for a corresponding unsigned 64 bit type,
+      zsh_cv_64_bit_utype,
+      [zsh_64_BIT_TYPE(unsigned $zsh_cv_64_bit_type, zsh_cv_64_bit_utype,
+       force)
+       if test "$zsh_cv_64_bit_utype" = no; then
+         zsh_64_BIT_TYPE(__uint64_t, zsh_cv_64_bit_utype)
+       fi])
+      if test "$zsh_cv_64_bit_utype" != no; then
+        AC_DEFINE_UNQUOTED(ZSH_64_BIT_UTYPE, $zsh_cv_64_bit_utype)
+      fi
+    fi
+  fi
+fi
+
+dnl Check for sigset_t.  Currently I'm looking in
+dnl <sys/types.h> and <signal.h>.  Others might need
+dnl to be added.
+AC_CACHE_CHECK(for sigset_t, zsh_cv_type_sigset_t,
+[AC_TRY_COMPILE(
+[#include <sys/types.h>
+#include <signal.h>], [sigset_t tempsigset;],
+  zsh_cv_type_sigset_t=yes, zsh_cv_type_sigset_t=no)])
+if test $zsh_cv_type_sigset_t = no; then
+  AC_DEFINE(sigset_t, unsigned int)
+fi
+
+dnl Check for struct timezone since some old SCO versions do not define it
+zsh_TYPE_EXISTS([
+#ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+], struct timezone)
+
+dnl Check for utmp structures, for watch
+zsh_TYPE_EXISTS([
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_UTMP_H
+# include <utmp.h>
+#endif
+], struct utmp)
+zsh_TYPE_EXISTS([
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_UTMPX_H
+# include <utmpx.h>
+#endif
+], struct utmpx)
+
+dnl Check contents of utmp structures
+zsh_STRUCT_MEMBER([
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_UTMP_H
+# include <utmp.h>
+#endif
+], struct utmp, ut_host)
+zsh_STRUCT_MEMBER([
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_UTMPX_H
+# include <utmpx.h>
+#endif
+], struct utmpx, ut_host)
+zsh_STRUCT_MEMBER([
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_UTMPX_H
+# include <utmpx.h>
+#endif
+], struct utmpx, ut_xtime)
+zsh_STRUCT_MEMBER([
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_UTMPX_H
+# include <utmpx.h>
+#endif
+], struct utmpx, ut_tv)
+
+dnl Check for inode numbers in directory entry structures
+zsh_STRUCT_MEMBER([
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+#endif
+], struct dirent, d_ino)
+zsh_STRUCT_MEMBER([
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+#endif
+], struct dirent, d_stat)
+zsh_STRUCT_MEMBER([
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_NDIR_H
+# include <sys/ndir.h>
+#endif
+#ifdef HAVE_SYS_DIR_H
+# include <sys/dir.h>
+#endif
+#ifdef HAVE_NDIR_H
+# include <ndir.h>
+#endif
+], struct direct, d_ino)
+zsh_STRUCT_MEMBER([
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_NDIR_H
+# include <sys/ndir.h>
+#endif
+#ifdef HAVE_SYS_DIR_H
+# include <sys/dir.h>
+#endif
+#ifdef HAVE_NDIR_H
+# include <ndir.h>
+#endif
+], struct direct, d_stat)
+
+dnl Check IPv6 socket address structure type
+zsh_STRUCT_MEMBER([
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#include <netinet/in.h>
+], struct sockaddr_in6, sin6_scope_id)
+
+dnl Check for h_errno external variable
+AC_CACHE_CHECK(if we need our own h_errno,
+  zsh_cv_decl_h_errno_use_local,
+  [AC_TRY_LINK( ,[extern int h_errno; h_errno = 0;],
+  zsh_cv_decl_h_errno_use_local=no,
+  zsh_cv_decl_h_errno_use_local=yes)])
+
+if test $zsh_cv_decl_h_errno_use_local = yes; then
+  AC_DEFINE(USE_LOCAL_H_ERRNO)
+fi
+
+dnl ---------------
+dnl CHECK FUNCTIONS
+dnl ---------------
+
+dnl need to integrate this function
+dnl AC_FUNC_STRFTIME
+
+AC_CHECK_FUNCS(strftime difftime gettimeofday \
+	       select poll \
+	       readlink faccessx fchdir ftruncate \
+	       fstat lstat lchown \
+	       fseeko ftello \
+	       mkfifo _mktemp mkstemp \
+	       waitpid wait3 \
+	       sigaction sigblock sighold sigrelse sigsetmask sigprocmask \
+	       killpg setpgid setpgrp tcsetpgrp tcgetattr nice \
+	       gethostname gethostbyname2 getipnodebyname \
+	       inet_aton inet_pton inet_ntop \
+	       getlogin getpwent getpwnam getpwuid getgrgid getgrnam \
+	       initgroups nis_list \
+	       setuid seteuid setreuid setresuid setsid \
+	       memcpy memmove strstr strerror \
+	       cap_get_proc \
+	       getrlimit \
+	       setlocale \
+	       uname \
+	       signgam \
+	       putenv getenv \
+	       brk sbrk \
+	       pathconf sysconf \
+	       tgetent tigetflag tigetnum tigetstr setupterm \
+	       pcre_compile pcre_study pcre_exec \
+	       nl_langinfo \
+	       erand48 open_memstream \
+	       wctomb iconv)
+AC_FUNC_STRCOLL
+
+dnl  Check if tgetent accepts NULL (and will allocate its own termcap buffer)
+dnl  Some termcaps reportedly accept a zero buffer, but then dump core
+dnl  in tgetstr().
+dnl  Under Cygwin test program crashes but exit code is still 0. So,
+dnl  we test for a file that porgram should create
+AC_CACHE_CHECK(if tgetent accepts NULL,
+zsh_cv_func_tgetent_accepts_null,
+[AC_TRY_RUN([
+main()
+{
+    char buf[4096];
+    int r1 = tgetent(buf, "vt100");
+    int r2 = tgetent((char*)0,"vt100");
+    if (r1 >= 0 && r1 == r2) {
+        char tbuf[1024], *u;
+        u = tbuf;
+    	tgetstr("cl", &u);
+	creat("conftest.tgetent", 0640);
+    }
+    exit((r1 != r2) || r2 == -1);
+}
+],
+  if test -f conftest.tgetent; then
+    zsh_cv_func_tgetent_accepts_null=yes
+  else
+    zsh_cv_func_tgetent_accepts_null=no
+  fi,
+  zsh_cv_func_tgetent_accepts_null=no,
+  zsh_cv_func_tgetent_accepts_null=no)])
+if test $zsh_cv_func_tgetent_accepts_null = yes; then
+  AC_DEFINE(TGETENT_ACCEPTS_NULL)
+fi
+AC_CACHE_CHECK(if tgetent returns 0 on success,
+zsh_cv_func_tgetent_zero_success,
+[AC_TRY_RUN([
+main()
+{
+    char buf[4096];
+    int r1 = tgetent(buf, "!@#$%^&*");
+    int r2 = tgetent(buf, "vt100");
+    if (r1 < 0 && r2 == 0) {
+        char tbuf[1024], *u;
+        u = tbuf;
+    	tgetstr("cl", &u);
+	creat("conftest.tgetent0", 0640);
+    }
+    exit(r1 == r2);
+}
+],
+  if test -f conftest.tgetent0; then
+    zsh_cv_func_tgetent_zero_success=yes
+  else
+    zsh_cv_func_tgetent_zero_success=no
+  fi,
+  zsh_cv_func_tgetent_zero_success=no,
+  zsh_cv_func_tgetent_zero_success=no)])
+if test $zsh_cv_func_tgetent_zero_success = yes; then
+  AC_DEFINE(TGETENT_SUCCESS, 0)
+else
+  AC_DEFINE(TGETENT_SUCCESS, 1)
+fi
+
+AC_FUNC_MMAP
+if test x$ac_cv_func_mmap_fixed_mapped = xyes; then
+  AC_CHECK_FUNCS(munmap msync)
+fi
+
+if test $ac_cv_func_setpgrp = yes; then
+  AC_FUNC_GETPGRP
+else
+  dnl If there is no setpgrp, the test for getpgrp(void) will fail
+  dnl because the program will not compile.  However, in that case
+  dnl we can be reasonably confident we are not dealing with a
+  dnl Berkeleyesque system, so assume getpgrp does take void.
+  ac_cv_func_getpgrp_void=yes
+  AC_DEFINE(GETPGRP_VOID)
+fi
+
+if test $dynamic = yes; then
+  AC_CHECK_FUNCS(dlopen dlerror dlsym dlclose load loadquery loadbind unload \
+		shl_load shl_unload shl_findsym)
+fi
+
+
+dnl -------------
+dnl CHECK SIGNALS
+dnl -------------
+dnl What style of signal do you have (POSIX, BSD, or SYSV)?
+AC_MSG_CHECKING(what style of signals to use)
+if test $ac_cv_func_sigaction = yes && test $ac_cv_func_sigprocmask = yes; then
+  signals_style=POSIX_SIGNALS
+  AC_DEFINE(POSIX_SIGNALS)
+elif test $ac_cv_func_sigblock = yes && test $ac_cv_func_sigsetmask = yes; then
+  signals_style=BSD_SIGNALS
+  AC_DEFINE(BSD_SIGNALS)
+elif test $ac_cv_func_sighold = yes && test $ac_cv_func_sigrelse = yes; then
+  signals_style=SYSV_SIGNALS
+  AC_DEFINE(SYSV_SIGNALS)
+else
+  signals_style=NO_SIGNAL_BLOCKING
+  AC_DEFINE(NO_SIGNAL_BLOCKING)
+fi
+AC_DEFINE_UNQUOTED($signals_style)
+AC_MSG_RESULT($signals_style)
+
+dnl Where is <signal.h> located?  Needed as input for signals.awk
+AC_CACHE_CHECK(where signal.h is located, zsh_cv_path_signal_h,
+[dnl Look at the output from the preprocessor.
+dnl We should get lines of the form `# 1 "/usr/include/signal.h"'
+dnl The following assumes the real definitions are in a file which
+dnl contains the name `sig'; we could relax this if necessary,
+dnl but then you can get a rather long list of files to test.
+dnl The backslash substitution is to persuade cygwin to cough up
+dnl slashes rather than doubled backslashes in the path.
+echo "#include <signal.h>" > nametmp.c
+sigfile_list="`$CPP nametmp.c |
+sed -n -e 's/^#line[ 	].*\"\(.*\)\"/\1/p' \
+       -e 's/^#[ 	].*\"\(.*\)\"/\1/p' |
+sed 's/\\\\\\\\/\//g' |
+$AWK '{ if (\$1 ~ \"sig\") files[[\$1]] = \$1 }
+  END { for (var in files) print var }'`"
+rm -f nametmp.c
+if test -z "$sigfile_list"; then
+  dnl In case we don't get the stuff from the preprocesor, use the old
+  dnl list of standard places.
+  sigfile_list="/usr/include/sys/iso/signal_iso.h
+/usr/include/bsd/sys/signal.h
+/usr/include/signum.h
+/usr/include/asm/signum.h
+/usr/include/asm/signal.h
+/usr/include/linux/signal.h
+/usr/include/sys/signal.h
+/usr/include/bits/signum.h
+/dev/null"
+fi
+for SIGNAL_H in $sigfile_list
+do
+  dnl Try to make sure it doesn't get confused by files that don't
+  dnl have real signal definitions in, but do #define SIG* by counting
+  dnl the number of signals.  Maybe we could even check for e.g. SIGHUP?
+  nsigs=`test -f $SIGNAL_H && \
+  grep '#[ 	]*define[ 	][ 	]*SIG[0-9A-Z]*[ 	]*[0-9][0-9]*' $SIGNAL_H | \
+  wc -l | sed 's/[ 	]//g'`
+  test "x$nsigs" != x && test "$nsigs" -ge 7 && break
+done
+if test $SIGNAL_H = "/dev/null"; then
+  AC_MSG_ERROR(SIGNAL MACROS NOT FOUND:  please report to developers)
+fi
+zsh_cv_path_signal_h=$SIGNAL_H
+])
+SIGNAL_H=$zsh_cv_path_signal_h
+AC_SUBST(SIGNAL_H)dnl
+
+dnl Where are error names located?  Needed as input for errnames1.awk
+AC_CACHE_CHECK(where error names are located, zsh_cv_path_errno_h,
+[dnl Look at the output from the preprocessor.
+dnl We should get lines of the form `# 1 "/usr/include/errno.h"'
+dnl The following assumes the real definitions are in a file which
+dnl contains the name `err'; we could relax this if necessary,
+dnl but then you can get a rather long list of files to test.
+dnl The backslash substitution is to persuade cygwin to cough up
+dnl slashes rather than doubled backslashes in the path.
+echo "#include <errno.h>" > nametmp.c
+errfile_list="`$CPP nametmp.c |
+sed -n -e 's/^#line[ 	].*\"\(.*\)\"/\1/p' \
+       -e 's/^#[ 	].*\"\(.*\)\"/\1/p' |
+sed 's/\\\\\\\\/\//g' |
+$AWK '{ if (\$1 ~ \"err\") files[[\$1]] = \$1 }
+  END { for (var in files) print var }'`"
+rm -f nametmp.c
+for ERRNO_H in $errfile_list /dev/null
+do
+  dnl Try to make sure it doesn't get confused by files that don't
+  dnl have real error definitions in.  Count definitions to make sure.
+  nerrs=`test -f $ERRNO_H && \
+  grep '#[ 	]*define[ 	][ 	]*E[0-9A-Z]*[ 	]*[0-9][0-9]*' $ERRNO_H | \
+  wc -l | sed 's/[ 	]//g'`
+  test "x$nerrs" != x && test "$nerrs" -ge 7 && break
+done
+if test $ERRNO_H = "/dev/null"; then
+  AC_MSG_ERROR(ERROR MACROS NOT FOUND:  please report to developers)
+fi
+zsh_cv_path_errno_h=$ERRNO_H
+])
+ERRNO_H=$zsh_cv_path_errno_h
+AC_SUBST(ERRNO_H)dnl
+
+dnl -----------------------------------------------------
+dnl Look for the file containing the RLIMIT_* definitions
+dnl -----------------------------------------------------
+dnl CALL FOR MORE (FEWER?) LOCATIONS:  I've just copied the signal checking.
+AC_CACHE_CHECK(where the RLIMIT macros are located,zsh_cv_path_rlimit_h,
+[for RESOURCE_H in /usr/include/bsd/sys/resource.h   dnl
+                   /usr/include/asm/resource.h	     dnl
+                   /usr/include/linux/resource.h     dnl
+                   /usr/include/sys/resource.h       dnl
+                   /usr/include/bits/resource.h      dnl
+                   /usr/include/resourcebits.h       dnl
+                   /dev/null;
+do
+  test -f $RESOURCE_H && \
+  grep '#[ 	]*define[ 	][ 	]*RLIMIT_[A-Z]*[ 	]*[0-9A-Z][0-9]*' $RESOURCE_H > /dev/null && \
+  break
+done
+zsh_cv_path_rlimit_h=$RESOURCE_H
+if test $RESOURCE_H = "/dev/null" && test $ac_cv_func_getrlimit = yes; then
+  AC_MSG_WARN(RLIMIT MACROS NOT FOUND:  please report to developers)
+fi])
+RLIMITS_INC_H=$zsh_cv_path_rlimit_h
+if test "$RLIMITS_INC_H" = "/dev/null"; then
+  RLIMITS_INC_H=''
+fi
+dnl rlimits.h only appears in dependencies if we are actually using it.
+dnl We are using it any time we have getrlimit, though if the macros were
+dnl not found we simply awk through /dev/null and fail to find them.
+dnl Thus, limit won't work, but at least the shell will compile.
+AC_SUBST(RLIMITS_INC_H)dnl
+
+dnl ------------------
+dnl rlimit type checks
+dnl ------------------
+DEFAULT_RLIM_T=long
+AC_CACHE_CHECK(if rlim_t is longer than a long,
+zsh_cv_rlim_t_is_longer,
+[AC_TRY_RUN([
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#include <sys/resource.h>
+main(){struct rlimit r;exit(sizeof(r.rlim_cur) <= sizeof(long));}],
+zsh_cv_rlim_t_is_longer=yes,
+zsh_cv_rlim_t_is_longer=no,
+zsh_cv_rlim_t_is_longer=yes)])
+if test $zsh_cv_rlim_t_is_longer = yes; then
+  AC_CACHE_CHECK(if rlim_t is a quad,
+  zsh_cv_rlim_t_is_quad_t,
+  [AC_TRY_RUN([
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#include <stdio.h>
+#include <sys/resource.h>
+main() { 
+  struct rlimit r;
+  char buf[20];
+  r.rlim_cur = 0;
+  sprintf(buf, "%qd", r.rlim_cur);
+  exit(strcmp(buf, "0"));
+}],
+  zsh_cv_rlim_t_is_quad_t=yes,
+  zsh_cv_rlim_t_is_quad_t=no,
+  zsh_cv_rlim_t_is_quad_t=no)])
+  if test $zsh_cv_rlim_t_is_quad_t = yes; then
+    AC_DEFINE(RLIM_T_IS_QUAD_T)
+    DEFAULT_RLIM_T=quad_t
+  else
+    AC_DEFINE(RLIM_T_IS_LONG_LONG)
+    DEFAULT_RLIM_T='long long'
+  fi
+else
+  AC_CACHE_CHECK(if the rlim_t is unsigned,
+  zsh_cv_type_rlim_t_is_unsigned,
+  [AC_TRY_RUN([
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#include <sys/resource.h>
+  main(){struct rlimit r;r.rlim_cur=-1;exit(r.rlim_cur<0);}],
+  zsh_cv_type_rlim_t_is_unsigned=yes,
+  zsh_cv_type_rlim_t_is_unsigned=no,
+  zsh_cv_type_rlim_t_is_unsigned=no)])
+  if test $zsh_cv_type_rlim_t_is_unsigned = yes; then
+    AC_DEFINE(RLIM_T_IS_UNSIGNED)
+    DEFAULT_RLIM_T="unsigned $DEFAULT_RLIM_T"
+  fi
+fi
+
+AC_CACHE_CHECK(for rlim_t, zsh_cv_type_rlim_t,
+[AC_TRY_COMPILE([
+#include <sys/types.h>
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#include <sys/resource.h>],
+[rlim_t l;],
+zsh_cv_type_rlim_t=yes,
+zsh_cv_type_rlim_t=no)])
+if test $zsh_cv_type_rlim_t = no; then
+  AC_DEFINE_UNQUOTED(rlim_t, $DEFAULT_RLIM_T)
+fi
+
+
+dnl On some systems the RLIMIT_* don't evaluate to integers at compile time
+dnl (they may be enums).  In this case we are not able to do preprocessor
+dnl comparisons and need our tests to determine what values exist and
+dnl if there are clashing definitions.
+
+zsh_LIMIT_PRESENT(RLIMIT_AIO_MEM)
+zsh_LIMIT_PRESENT(RLIMIT_AIO_OPS)
+zsh_LIMIT_PRESENT(RLIMIT_AS)
+zsh_LIMIT_PRESENT(RLIMIT_LOCKS)
+zsh_LIMIT_PRESENT(RLIMIT_MEMLOCK)
+zsh_LIMIT_PRESENT(RLIMIT_NPROC)
+zsh_LIMIT_PRESENT(RLIMIT_NOFILE)
+zsh_LIMIT_PRESENT(RLIMIT_PTHREAD)
+zsh_LIMIT_PRESENT(RLIMIT_RSS)
+zsh_LIMIT_PRESENT(RLIMIT_SBSIZE)
+zsh_LIMIT_PRESENT(RLIMIT_TCACHE)
+zsh_LIMIT_PRESENT(RLIMIT_VMEM)
+
+AC_CACHE_CHECK(if RLIMIT_VMEM and RLIMIT_RSS are the same,
+zsh_cv_rlimit_vmem_is_rss,
+[AC_TRY_RUN([
+#include <sys/types.h>
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#include <sys/resource.h>
+int main()
+{
+int ret = 1;
+#if defined(HAVE_RLIMIT_VMEM) && defined(HAVE_RLIMIT_RSS)
+if (RLIMIT_RSS == RLIMIT_VMEM) ret = 0;
+#endif
+return ret;
+}],
+  zsh_cv_rlimit_vmem_is_rss=yes,
+  zsh_cv_rlimit_vmem_is_rss=no,
+  zsh_cv_rlimit_vmem_is_rss=no)])
+
+if test $zsh_cv_rlimit_vmem_is_rss = yes; then
+  AC_DEFINE(RLIMIT_VMEM_IS_RSS)
+fi
+
+
+AC_CACHE_CHECK(if RLIMIT_VMEM and RLIMIT_AS are the same,
+zsh_cv_rlimit_vmem_is_as,
+[AC_TRY_RUN([
+#include <sys/types.h>
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#include <sys/resource.h>
+int main()
+{
+int ret = 1;
+#if defined(HAVE_RLIMIT_VMEM) && defined(HAVE_RLIMIT_AS)
+if (RLIMIT_AS == RLIMIT_VMEM) ret = 0;
+#endif
+return ret;
+}],
+  zsh_cv_rlimit_vmem_is_as=yes,
+  zsh_cv_rlimit_vmem_is_as=no,
+  zsh_cv_rlimit_vmem_is_as=no)])
+
+if test $zsh_cv_rlimit_vmem_is_as = yes; then
+  AC_DEFINE(RLIMIT_VMEM_IS_AS)
+fi
+
+
+dnl --------------------------------------------
+dnl CHECK FOR DEFAULT PATH (used for command -p)
+dnl --------------------------------------------
+AC_CACHE_VAL(zsh_cv_cs_path,
+[if getconf _CS_PATH >/dev/null 2>&1; then
+  zsh_cv_cs_path=`getconf _CS_PATH`
+elif getconf CS_PATH >/dev/null 2>&1; then
+  zsh_cv_cs_path=`getconf CS_PATH`
+else
+  zsh_cv_cs_path="/bin:/usr/bin"
+fi])
+AC_DEFINE_UNQUOTED(DEFAULT_PATH, "$zsh_cv_cs_path")
+
+
+dnl ----------------------------
+dnl CHECK FOR /dev/fd FILESYSTEM
+dnl ----------------------------
+AC_CACHE_CHECK(for /dev/fd filesystem, zsh_cv_sys_path_dev_fd,
+[for zsh_cv_sys_path_dev_fd in /proc/self/fd /dev/fd no; do
+   test x`echo ok|cat $zsh_cv_sys_path_dev_fd/0 2>/dev/null` = xok && break
+ done])
+if test $zsh_cv_sys_path_dev_fd != no; then
+  AC_DEFINE_UNQUOTED(PATH_DEV_FD, "$zsh_cv_sys_path_dev_fd")
+fi
+
+dnl ---------------------------------
+dnl CHECK FOR RFS SUPERROOT DIRECTORY
+dnl ---------------------------------
+AC_CACHE_CHECK(for RFS superroot directory, zsh_cv_sys_superroot,
+[test -d /../.LOCALROOT && zsh_cv_sys_superroot=yes || zsh_cv_sys_superroot=no])
+if test $zsh_cv_sys_superroot = yes; then
+  AC_DEFINE(HAVE_SUPERROOT)
+fi
+
+dnl CHECK FOR SYSTEMS REQUIRING GETCWD
+AC_CACHE_CHECK(whether we should use the native getcwd,
+zsh_cv_use_getcwd,
+[case "${host_cpu}-${host_vendor}-${host_os}" in
+    *QNX*) zsh_cv_use_getcwd=yes ;;
+    *) zsh_cv_use_getcwd=no ;;
+ esac])
+if test $zsh_cv_use_getcwd = yes; then
+  AC_DEFINE(USE_GETCWD)
+fi
+
+dnl -------------
+dnl CHECK FOR NIS
+dnl -------------
+AC_CACHE_CHECK(for NIS, zsh_cv_sys_nis,
+[test -f /usr/bin/ypcat && /usr/bin/ypcat passwd.byname > /dev/null 2>&1 && \
+zsh_cv_sys_nis=yes || zsh_cv_sys_nis=no])
+if test $zsh_cv_sys_nis = yes; then
+  AC_DEFINE(HAVE_NIS)
+fi
+
+dnl -----------------
+dnl CHECK FOR NISPLUS
+dnl -----------------
+AC_CACHE_CHECK(for NIS+, zsh_cv_sys_nis_plus,
+[test $ac_cv_func_nis_list = yes && test -f /usr/bin/nisls && \
+ /usr/bin/nisls > /dev/null 2>&1 && \
+zsh_cv_sys_nis_plus=yes || zsh_cv_sys_nis_plus=no])
+if test $zsh_cv_sys_nis_plus = yes; then
+  AC_DEFINE(HAVE_NIS_PLUS)
+fi
+
+dnl ----------------------------------------
+dnl CHECK FOR LOCATION OF {U,W}TMP{,X} FILES
+dnl ----------------------------------------
+zsh_PATH_UTMP(utmp)
+zsh_PATH_UTMP(wtmp)
+zsh_PATH_UTMP(utmpx)
+zsh_PATH_UTMP(wtmpx)
+
+dnl -------------------
+dnl brk/sbrk PROTOTYPES
+dnl -------------------
+AC_CACHE_CHECK(for brk() prototype in <unistd.h>,
+zsh_cv_header_unistd_h_brk_proto,
+[AC_TRY_COMPILE([#include <unistd.h>
+double brk();], [int i;],
+zsh_cv_header_unistd_h_brk_proto=no, zsh_cv_header_unistd_h_brk_proto=yes)])
+if test $zsh_cv_header_unistd_h_brk_proto = yes; then
+  AC_DEFINE(HAVE_BRK_PROTO)
+fi
+
+AC_CACHE_CHECK(for sbrk() prototype in <unistd.h>,
+zsh_cv_header_unistd_h_sbrk_proto,
+[AC_TRY_COMPILE([#include <unistd.h>
+double sbrk();], [int i;],
+zsh_cv_header_unistd_h_sbrk_proto=no, zsh_cv_header_unistd_h_sbrk_proto=yes)])
+if test $zsh_cv_header_unistd_h_sbrk_proto = yes; then
+  AC_DEFINE(HAVE_SBRK_PROTO)
+fi
+
+dnl ----------------------------------
+dnl ioctl and mknod prototypes for OSF
+dnl ----------------------------------
+
+if test "$ac_cv_prog_cc_stdc" != no; then
+  AC_CACHE_CHECK(for ioctl prototype in <sys/ioctl.h>,
+  zsh_cv_header_sys_ioctl_h_ioctl_proto,
+  [AC_TRY_COMPILE([#include <sys/ioctl.h>
+   int ioctl(double x);], [int i;],
+  zsh_cv_header_sys_ioctl_h_ioctl_proto=no,
+  zsh_cv_header_sys_ioctl_h_ioctl_proto=yes)])
+  if test $zsh_cv_header_sys_ioctl_h_ioctl_proto = yes; then
+    AC_DEFINE(HAVE_IOCTL_PROTO)
+  fi
+  AC_CACHE_CHECK(for mknod prototype in <sys/stat.h>,
+  zsh_cv_header_sys_stat_h_mknod_proto,
+  [AC_TRY_COMPILE([#include <sys/stat.h>
+   int mknod(double x);], [int i;],
+  zsh_cv_header_sys_stat_h_mknod_proto=no,
+  zsh_cv_header_sys_stat_h_mknod_proto=yes)])
+  if test $zsh_cv_header_sys_stat_h_mknod_proto = yes; then
+    AC_DEFINE(HAVE_MKNOD_PROTO)
+  fi
+fi
+
+dnl -------------------
+dnl select() defined in <sys/socket.h>, ie BeOS R4.51
+dnl -------------------
+if test $ac_cv_header_sys_select_h != yes; then
+  AC_CACHE_CHECK(for select() in <sys/socket.h>,
+  zsh_cv_header_socket_h_select_proto,
+  [AC_TRY_COMPILE([#include <sys/socket.h>], [fd_set fd;],
+  zsh_cv_header_socket_h_select_proto=yes, 
+  zsh_cv_header_socket_h_select_proto=no)])
+  if test $zsh_cv_header_socket_h_select_proto = yes; then
+    AC_DEFINE(SELECT_IN_SYS_SOCKET_H)
+  fi
+fi
+
+dnl -----------
+dnl named FIFOs
+dnl -----------
+AC_CACHE_CHECK(if named FIFOs work,
+zsh_cv_sys_fifo,
+[AC_TRY_RUN([
+#include <fcntl.h>
+#include <signal.h>
+main()
+{
+    char c;
+    int fd;
+    int pid, ret;
+    unlink("/tmp/fifo$$");
+#ifdef HAVE_MKFIFO
+    if(mkfifo("/tmp/fifo$$", 0600) < 0)
+#else
+    if(mknod("/tmp/fifo$$", 0010600, 0) < 0)
+#endif
+	exit(1);
+    pid = fork();
+    if(pid < 0)
+	exit(1);
+    if(pid) {
+	fd = open("/tmp/fifo$$", O_RDONLY);
+	exit(fd < 0 || read(fd, &c, 1) != 1 || c != 'x');
+    }
+    fd = open("/tmp/fifo$$", O_WRONLY);
+    ret = (fd < 0 || write(fd, "x", 1) < 1);
+    unlink("/tmp/fifo$$");
+    exit(ret);
+}
+],
+  zsh_cv_sys_fifo=yes,
+  zsh_cv_sys_fifo=no,
+  zsh_cv_sys_fifo=yes)])
+if test $zsh_cv_sys_fifo = yes; then
+  AC_DEFINE(HAVE_FIFOS)
+fi
+dnl ---------------------
+dnl echo style of /bin/sh
+dnl ---------------------
+AC_CACHE_CHECK(if echo in /bin/sh interprets escape sequences,
+zsh_cv_prog_sh_echo_escape,
+[if test "`/bin/sh -c \"echo '\\n'\"`" = "\\n"; then
+  zsh_cv_prog_sh_echo_escape=no
+else
+  zsh_cv_prog_sh_echo_escape=yes
+fi])
+if test $zsh_cv_prog_sh_echo_escape = no; then
+  AC_DEFINE(SH_USE_BSD_ECHO)
+fi
+
+dnl -----------
+dnl test for whether link() works
+dnl for instance, BeOS R4.51 doesn't support hard links yet
+dnl -----------
+AC_CACHE_CHECK(if link() works,
+zsh_cv_sys_link,
+[AC_TRY_RUN([
+#include <unistd.h>
+#include <fcntl.h>
+main()
+{
+    int ret;
+    char *tmpfile, *newfile;
+    tmpfile="/tmp/zsh.linktest$$";
+    newfile="/tmp/zsh.linktest2$$";
+    unlink(tmpfile);
+    unlink(newfile);
+    if(creat(tmpfile, 0644) < 0)
+	exit(1);
+    ret = link(tmpfile, newfile);
+    unlink(tmpfile);
+    unlink(newfile);
+    exit(ret<0);
+}
+],
+  zsh_cv_sys_link=yes,
+  zsh_cv_sys_link=no,
+  zsh_cv_sys_link=yes)])
+if test $zsh_cv_sys_link = yes; then
+  AC_DEFINE(HAVE_LINK)
+fi
+
+dnl -----------
+dnl test for whether kill(pid, 0) where pid doesn't exit
+dnl should set errno to ESRCH, but some like BeOS R4.51 set to EINVAL
+dnl -----------
+AC_CACHE_CHECK(if kill(pid, 0) returns ESRCH correctly,
+zsh_cv_sys_killesrch,
+[AC_TRY_RUN([
+#include <unistd.h>
+#include <signal.h>
+#include <errno.h>
+main()
+{
+    int pid = (getpid() + 10000) & 0xffffff;
+    while (pid && (kill(pid, 0) == 0 || errno != ESRCH)) pid >>= 1;
+    exit(errno!=ESRCH);
+}
+],
+  zsh_cv_sys_killesrch=yes,
+  zsh_cv_sys_killesrch=no,
+  zsh_cv_sys_killesrch=yes)])
+if test $zsh_cv_sys_killesrch = no; then
+  AC_DEFINE(BROKEN_KILL_ESRCH)
+fi
+
+dnl -----------
+dnl if POSIX, test for working sigsuspend().
+dnl for instance, BeOS R4.51 is broken.
+dnl -----------
+if test $signals_style = POSIX_SIGNALS; then
+    AC_CACHE_CHECK(if POSIX sigsuspend() works,
+    zsh_cv_sys_sigsuspend,
+    [AC_TRY_RUN([
+#include <signal.h>
+#include <unistd.h>
+int child=0;
+void handler(sig)
+    int sig;
+{if(sig==SIGCHLD) child=1;}
+main() {
+    struct sigaction act;
+    sigset_t set;
+    int pid, ret;
+    act.sa_handler = &handler;
+    sigfillset(&act.sa_mask);
+    act.sa_flags = 0;
+    sigaction(SIGCHLD, &act, 0);
+    sigfillset(&set);
+    sigprocmask(SIG_SETMASK, &set, 0);
+    pid=fork();
+    if(pid==0) return 0;
+    if(pid>0) {
+    sigemptyset(&set);
+        ret=sigsuspend(&set);
+        exit(child==0);
+    }
+}
+],
+      zsh_cv_sys_sigsuspend=yes,
+      zsh_cv_sys_sigsuspend=no,
+      zsh_cv_sys_sigsuspend=yes)])
+    if test $zsh_cv_sys_sigsuspend = no; then
+      AC_DEFINE(BROKEN_POSIX_SIGSUSPEND)
+    fi
+fi
+
+dnl -----------
+dnl if found tcsetpgrp, test to see if it actually works
+dnl for instance, BeOS R4.51 does not support it yet
+dnl -----------
+if test -t 0 && test $ac_cv_func_tcsetpgrp = yes; then
+    AC_CACHE_CHECK(if tcsetpgrp() actually works,
+    zsh_cv_sys_tcsetpgrp,
+    [AC_TRY_RUN([
+#include <sys/types.h>
+#include <unistd.h>
+main() {
+    int ret;
+    ret=tcsetpgrp(0, tcgetpgrp(0));
+    exit(ret<0);
+}
+],
+      zsh_cv_sys_tcsetpgrp=yes,
+      zsh_cv_sys_tcsetpgrp=no,
+      zsh_cv_sys_tcsetpgrp=yes)])
+    if test $zsh_cv_sys_tcsetpgrp = no; then
+      AC_DEFINE(BROKEN_TCSETPGRP)
+    fi
+fi
+
+dnl -----------
+dnl test for faked getpwnam() entry, ie a single entry returned for any username
+dnl for instance, BeOS R4.51 is not multiuser yet, and fakes getpwnam()
+dnl test by looking up two usernames that shouldn't succeed, and compare entry
+dnl -----------
+if test $ac_cv_func_getpwnam = yes; then
+    AC_CACHE_CHECK(if getpwnam() is faked,
+    zsh_cv_sys_getpwnam_faked,
+    [AC_TRY_RUN([
+#include <pwd.h>
+main() {
+    struct passwd *pw1, *pw2;
+    char buf[1024], name[1024];
+    sprintf(buf, "%d:%d", getpid(), rand());
+    pw1=getpwnam(buf);
+    if (pw1) strcpy(name, pw1->pw_name);
+    sprintf(buf, "%d:%d", rand(), getpid());
+    pw2=getpwnam(buf);
+    exit(pw1!=0 && pw2!=0 && !strcmp(name, pw2->pw_name));
+}
+],
+      zsh_cv_sys_getpwnam_faked=no,
+      zsh_cv_sys_getpwnam_faked=yes,
+      zsh_cv_sys_getpwnam_faked=no)])
+    if test $zsh_cv_sys_getpwnam_faked = yes; then
+      AC_DEFINE(GETPWNAM_FAKED)
+    fi
+fi
+
+
+dnl ---------------
+dnl check for the type of third argument of accept
+dnl ---------------
+
+zsh_CHECK_SOCKLEN_T
+
+dnl ---------------
+dnl dynamic loading
+dnl ---------------
+L=N
+INSTLIB="install.bin-\$(L)"
+UNINSTLIB="uninstall.bin-\$(L)"
+LINKMODS=NOLINKMODS
+MOD_EXPORT=
+MOD_IMPORT_VARIABLE=
+MOD_IMPORT_FUNCTION=
+aixdynamic=no
+hpuxdynamic=no
+if test "$ac_cv_func_load"      = yes &&
+   test "$ac_cv_func_unload"    = yes &&
+   test "$ac_cv_func_loadbind"  = yes &&
+   test "$ac_cv_func_loadquery" = yes; then
+  dnl Force AIXDYNAMIC even on newer versions that have dl family
+  if test "x$dynamic" = xyes; then
+    aixdynamic=yes
+  fi
+elif test "$ac_cv_func_dlopen"  != yes ||
+     test "$ac_cv_func_dlsym"   != yes ||
+     test "$ac_cv_func_dlerror" != yes; then
+  if test "$ac_cv_func_shl_load" != yes ||
+     test "$ac_cv_func_shl_unload" != yes ||
+     test "$ac_cv_func_shl_findsym" != yes; then
+    dynamic=no
+  elif test "x$dynamic" = xyes; then
+    hpuxdynamic=yes
+    DL_EXT="${DL_EXT=sl}"
+    dnl autoheader won't allow us to define anything which isn't
+    dnl going into a header, and we can't undefine anything, so
+    dnl just define this anyway and rely on the later tests to
+    dnl define DYNAMIC or not.
+    AC_DEFINE(HPUXDYNAMIC)dnl
+  fi
+fi
+
+test -n "$GCC" && LDARG=-Wl,
+
+if test "x$aixdynamic" = xyes; then
+  DL_EXT="${DL_EXT=so}"
+  DLLD="${DLLD=$CC}"
+  zsh_cv_func_dlsym_needs_underscore=no
+  if test -n "$GCC"; then
+    DLLDFLAGS=${DLLDFLAGS=-shared}
+  else
+    DLLDFLAGS=${DLLDFLAGS=-bM:SRE}
+  fi
+  DLLDFLAGS=${DLLDFLAGS=}
+  EXTRA_LDFLAGS=${EXTRA_LDFLAGS=}
+  EXPOPT=${LDARG}-bE:
+  IMPOPT=${LDARG}-bI:
+  zsh_cv_sys_dynamic_clash_ok="${zsh_cv_sys_dynamic_clash_ok=yes}"
+  zsh_cv_sys_dynamic_rtld_global="${zsh_cv_sys_dynamic_rtld_global=yes}"
+  zsh_cv_sys_dynamic_execsyms="${zsh_cv_sys_dynamic_execsyms=yes}"
+  zsh_cv_sys_dynamic_strip_exe="${zsh_cv_sys_dynamic_strip_exe=yes}"
+  zsh_cv_sys_dynamic_strip_lib="${zsh_cv_sys_dynamic_strip_lib=yes}"
+  zsh_cv_shared_environ="${zsh_cv_shared_environ=yes}"
+elif test "$host_os" = cygwin; then
+  DL_EXT="${DL_EXT=dll}"
+  DLLD="${DLLD=dllwrap}"
+  DLLDFLAGS="${DLLDFLAGS=--export-all-symbols}"
+  zsh_cv_func_dlsym_needs_underscore=no
+  DLLDFLAGS=${DLLDFLAGS=}
+  EXTRA_LDFLAGS=${EXTRA_LDFLAGS=}
+  zsh_cv_sys_dynamic_clash_ok="${zsh_cv_sys_dynamic_clash_ok=no}"
+  zsh_cv_sys_dynamic_rtld_global="${zsh_cv_sys_dynamic_rtld_global=yes}"
+  zsh_cv_sys_dynamic_execsyms="${zsh_cv_sys_dynamic_execsyms=no}"
+  zsh_cv_sys_dynamic_strip_exe="${zsh_cv_sys_dynamic_strip_exe=yes}"
+  zsh_cv_sys_dynamic_strip_lib="${zsh_cv_sys_dynamic_strip_lib=yes}"
+  #
+  # THAT SUCKS! and must be changed
+  #
+  zsh_cv_shared_environ="${zsh_cv_shared_environ=yes}"
+  LINKMODS=LINKMODS
+  MOD_EXPORT="__attribute__((__dllexport__))"
+  MOD_IMPORT_VARIABLE="__attribute__((__dllimport__))"
+  MOD_IMPORT_FUNCTION=
+elif test "x$dynamic" = xyes; then
+  AC_CACHE_CHECK(if your system uses ELF binaries,
+   zsh_cv_sys_elf,
+   [AC_TRY_RUN([/* Test for whether ELF binaries are produced */
+#include <fcntl.h>
+#include <stdlib.h>
+main(argc, argv)
+int argc;
+char *argv[];
+{
+	char b[4];
+	int i = open(argv[0],O_RDONLY);
+	if(i == -1) 
+		exit(1); /* fail */
+	if(read(i,b,4)==4 && b[0]==127 && b[1]=='E' && b[2]=='L' && b[3]=='F')
+		exit(0); /* succeed (yes, it's ELF) */
+	else
+		exit(1); /* fail */
+}],
+  zsh_cv_sys_elf=yes,
+  zsh_cv_sys_elf=no,
+  zsh_cv_sys_elf=yes)])
+  DL_EXT="${DL_EXT=so}"
+  if test $zsh_cv_sys_elf = yes; then
+    case "$host" in
+      mips-sni-sysv4*)
+        # Forcibly set ld to native compiler to avoid obscure GCC problems
+	DLLD="${DLLD=/usr/ccs/bin/cc}"
+	DLLDARG="${LDARG}"
+      ;;
+      * )
+	DLLD="${DLLD=$CC}"
+	DLLDARG="${LDARG}"
+      ;;
+    esac
+  else
+    case "$host" in
+      *openbsd*)
+	case "$host_os" in
+	  openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
+	    DLLD="${DLLD=ld}"
+	  ;;
+	  *)
+	    DLLD="${DLLD=$CC}"
+	  ;;
+	esac
+	DLLDARG="${LDARG}"
+      ;;
+      *darwin*)
+        DLLD="${DLLD=$CC}"
+        DLLDARG=""
+      ;;
+      * )
+	DLLD="${DLLD=ld}"
+	DLLDARG=""
+      ;;
+    esac
+  fi
+  if test -n "$GCC"; then
+    case "$host_os" in
+      darwin*) DLCFLAGS="${DLCFLAGS=-fno-common}" ;;
+      *)       DLCFLAGS="${DLCFLAGS=-fPIC}" ;;
+    esac
+  else
+    case "$host_os" in
+      hpux*)                 DLCFLAGS="${DLCFLAGS=+z}" ;;
+      sunos*)                DLCFLAGS="${DLCFLAGS=-pic}" ;;
+      solaris*|sysv4*|esix*) DLCFLAGS="${DLCFLAGS=-KPIC}" ;;
+    esac
+  fi
+  case "$host_os" in
+    hpux*)        DLLDFLAGS="${DLLDFLAGS=-b}" ;;
+    freebsd*|linux*|irix*|osf*|gnu*) DLLDFLAGS="${DLLDFLAGS=-shared}" ;;
+    sunos*)       DLLDFLAGS="${DLLDFLAGS=-assert nodefinitions}" ;;
+    sysv4*|esix*) DLLDFLAGS="${DLLDFLAGS=-G $ldflags}" ;;
+    netbsd*)      DLLDFLAGS="${DLLDFLAGS=${DLLDARG}-x -shared --whole-archive}" ;;
+    aix*)         DLLDFLAGS="${DLLDFLAGS=-G -bexpall -lc}" ;;
+    solaris*|sysv4*|esix*) DLLDFLAGS="${DLLDFLAGS=-G}" ;;
+    darwin*)      DLLDFLAGS="${DLLDFLAGS=-bundle -flat_namespace -undefined suppress}" ;;
+    openbsd*)
+      if test $zsh_cv_sys_elf = yes; then
+	DLLDFLAGS="${DLLDFLAGS=-shared -fPIC}"
+      else
+	case "$host_os" in
+	  openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
+	   DLLDFLAGS="${DLLDFLAGS=-Bshareable}"
+	  ;;
+	  *)
+	    DLLDFLAGS="${DLLDFLAGS=-shared -fPIC}"
+	  ;;
+	esac
+      fi
+    ;;
+  esac
+  case "$host" in
+    *-hpux*)  EXTRA_LDFLAGS="${EXTRA_LDFLAGS=-Wl,-E}" ;;
+    *-freebsd[3-9]*|*-linux*|gnu*) EXTRA_LDFLAGS="${EXTRA_LDFLAGS=-rdynamic}" ;;
+    *openbsd*)
+       if test $zsh_cv_sys_elf = yes; then
+	 EXTRA_LDFLAGS="${EXTRA_LDFLAGS=-Wl,-E}"
+       fi
+    ;;
+    mips-sni-sysv4)
+      #
+      # unfortunately, we have different compilers
+      # that need different flags
+      #
+      if test -n "$GCC"; then
+        sni_cc_version=GCC
+      else
+        sni_cc_version=`$CC -V 2>&1 | head -1`
+      fi
+      case "$sni_cc_version" in
+        *CDS*|GCC )
+         EXTRA_LDFLAGS="${EXTRA_LDFLAGS=-Wl,-Blargedynsym}"
+       ;;
+       * )
+         EXTRA_LDFLAGS="${EXTRA_LDFLAGS=-LD-Blargedynsym}"
+       ;;
+      esac
+    ;;
+  esac
+  AC_CACHE_CHECK(if your dlsym() needs a leading underscore,
+   zsh_cv_func_dlsym_needs_underscore,
+   [echo failed >conftestval && cat >conftest.c <<EOM
+fred () { }
+EOM
+    AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest.c 1>&AC_FD_CC) &&
+    AC_TRY_COMMAND($DLLD $LDFLAGS $DLLDFLAGS -o conftest.$DL_EXT conftest.o 1>&AC_FD_CC) &&
+    AC_TRY_RUN([
+#include <stdio.h>
+#ifdef HPUXDYNAMIC
+#include <dl.h>
+#define RTLD_LAZY BIND_DEFERRED
+#define RTLD_GLOBAL DYNAMIC_PATH
+
+char *zsh_gl_sym_addr ;
+
+#define dlopen(file,mode) (void *)shl_load((file), (mode), (long) 0)
+#define dlclose(handle) shl_unload((shl_t)(handle))
+#define dlsym(handle,name) (zsh_gl_sym_addr=0,shl_findsym((shl_t *)&(handle),name,TYPE_UNDEFINED,&zsh_gl_sym_addr), (void *)zsh_gl_sym_addr)
+#define dlerror() 0
+#else
+#ifdef HAVE_DLFCN_H
+#include <dlfcn.h>
+#else
+#include <sys/types.h>
+#include <nlist.h>
+#include <link.h>
+#endif
+#endif
+#ifndef RTLD_LAZY
+#define RTLD_LAZY 1
+#endif
+
+extern int fred() ;
+
+main()
+{
+    void * handle ;
+    void * symbol ;
+    FILE *f=fopen("conftestval", "w");
+    if (!f) exit(1);
+    handle = dlopen("./conftest.$DL_EXT", RTLD_LAZY) ;
+    if (handle == NULL) {
+        fprintf (f, "dlopen failed") ;
+            exit(1);
+    }
+    symbol = dlsym(handle, "fred") ;
+    if (symbol == NULL) {
+                /* try putting a leading underscore */
+        symbol = dlsym(handle, "_fred") ;
+        if (symbol == NULL) {
+            fprintf (f, "dlsym failed") ;
+                exit(1);
+                }
+        fprintf (f, "yes") ;
+    }
+    else
+        fprintf (f, "no") ;
+    exit(0);
+}], zsh_cv_func_dlsym_needs_underscore=`cat conftestval`,
+    zsh_cv_func_dlsym_needs_underscore=failed
+    dynamic=no,
+    zsh_cv_func_dlsym_needs_underscore=no)])
+  if test "x$zsh_cv_func_dlsym_needs_underscore" = xyes; then
+    AC_DEFINE(DLSYM_NEEDS_UNDERSCORE)
+  elif test "x$zsh_cv_func_dlsym_needs_underscore" != xno; then
+    dnl Do not cache failed value
+    unset zsh_cv_func_dlsym_needs_underscore
+  fi
+fi
+
+if test "x$dynamic" = xyes; then
+  zsh_SHARED_VARIABLE([environ], [char **])
+  test "$zsh_cv_shared_environ" = yes || dynamic=no
+  if test "$ac_cv_func_tgetent" = yes; then
+    zsh_SHARED_FUNCTION([tgetent])
+  fi
+  if test "$ac_cv_func_tigetstr" = yes; then
+    zsh_SHARED_FUNCTION([tigetstr])
+  fi
+fi
+
+if test "x$dynamic" = xyes; then
+  zsh_SYS_DYNAMIC_CLASH
+  zsh_SYS_DYNAMIC_GLOBAL
+  RTLD_GLOBAL_OK=$zsh_cv_sys_dynamic_rtld_global
+  zsh_SYS_DYNAMIC_EXECSYMS
+  if test "$zsh_cv_sys_dynamic_execsyms" != yes; then
+    L=L
+  fi
+  zsh_SYS_DYNAMIC_STRIP_EXE
+  zsh_SYS_DYNAMIC_STRIP_LIB
+  if $strip_exeldflags && test "$zsh_cv_sys_dynamic_strip_exe" = yes; then
+    EXELDFLAGS="$EXELDFLAGS -s"
+  fi
+  if $strip_libldflags && test "$zsh_cv_sys_dynamic_strip_lib" = yes; then
+    LIBLDFLAGS="$LIBLDFLAGS -s"
+  fi
+  if test "$host_os" = cygwin; then
+    INSTLIB="install.cygwin-lib"
+    UNINSTLIB="uninstall.cygwin-lib"
+  fi
+else
+  $strip_exeldflags && EXELDFLAGS="$EXELDFLAGS -s"
+  $strip_libldflags && LIBLDFLAGS="$LIBLDFLAGS -s"
+  RTLD_GLOBAL_OK=no
+fi
+
+if test "x$dynamic" = xyes; then
+  D=D
+  AC_DEFINE(DYNAMIC)dnl
+else
+  D=N
+fi
+
+if test "x$aixdynamic" = xyes; then
+  E=E
+  AC_DEFINE(AIXDYNAMIC)dnl
+else
+  E=N
+fi
+
+if test "x$zsh_cv_sys_dynamic_clash_ok" = xyes; then
+  SHORTBOOTNAMES=yes
+else
+  SHORTBOOTNAMES=no
+fi
+AC_SUBST(SHORTBOOTNAMES)
+
+AC_SUBST(INSTLIB)dnl
+AC_SUBST(UNINSTLIB)dnl
+
+if test "$host_os" = cygwin; then
+  EXTRAZSHOBJS="$EXTRAZSHOBJS zsh.res.o"
+fi
+
+AC_DEFINE_UNQUOTED(DL_EXT, "$DL_EXT")dnl
+AC_SUBST(D)dnl
+AC_SUBST(DL_EXT)dnl
+AC_SUBST(DLLD)dnl
+AC_SUBST(DLCFLAGS)dnl
+AC_SUBST(DLLDFLAGS)dnl
+AC_SUBST(E)dnl
+AC_SUBST(EXTRA_LDFLAGS)dnl
+AC_SUBST(EXPOPT)dnl
+AC_SUBST(IMPOPT)dnl
+AC_SUBST(L)dnl
+AC_SUBST(LINKMODS)dnl
+AC_SUBST(MOD_EXPORT)dnl
+AC_SUBST(MOD_IMPORT_VARIABLE)dnl
+AC_SUBST(MOD_IMPORT_FUNCTION)dnl
+AC_SUBST(EXTRAZSHOBJS)dnl
+
+# Generate config.modules.  We look for *.mdd files in first and second
+# level subdirectories.  Any existing line not containing 'auto=y' will be
+# retained, provided the .mdd file itself was found.
+CONFIG_MODULES=./config.modules
+cat <<EOM > ${CONFIG_MODULES}.sh
+srcdir="$srcdir"
+dynamic="$dynamic"
+CONFIG_MODULES="${CONFIG_MODULES}"
+EOM
+cat <<\EOM >> ${CONFIG_MODULES}.sh
+echo "creating ${CONFIG_MODULES}"
+userlist=" "
+if test -f ${CONFIG_MODULES}; then
+  userlist="`sed -e '/^#/d' -e '/auto=y/d' -e 's/ .*/ /' -e 's/^name=/ /' \
+        ${CONFIG_MODULES}`"
+  mv ${CONFIG_MODULES} ${CONFIG_MODULES}.old
+fi
+(echo "# Edit this file to change the way modules are loaded."
+echo "# The format is strict; do not break lines or add extra spaces."
+echo "# Run \`make prep' if you change anything here after compiling"
+echo "# (there is no need if you change this just after the first time"
+echo "# you run \`configure')."
+echo "#"
+echo "# Values of \`link' are \`static', \`dynamic' or \`no' to compile the"
+echo "# module into the shell, link it in at run time, or not use it at all."
+echo "# In the final case, no attempt will be made to compile it."
+echo "# Use \`static' or \`no' if you do not have dynamic loading."
+echo "#"
+echo "# Values of \`load' are \`yes' or \`no'; if yes, any builtins etc."
+echo "# provided by the module will be autoloaded by the main shell"
+echo "# (so long as \`link' is not set to \`no')."
+echo "#"
+echo "# Values of \`auto' are \`yes' or \`no'. configure sets the value to"
+echo "# \`yes'.  If you set it by hand to \`no', the line will be retained"
+echo "# when the file is regenerated in future."
+echo "#"
+echo "# Note that the \`functions' entry extends to the end of the line."
+echo "# It should not be quoted; it is used verbatim to find files to install."
+echo "#"
+echo "# You will need to run \`config.status --recheck' if you add a new"
+echo "# module."
+echo "#"
+echo "# You should not change the values for the pseudo-module zsh/main,"
+echo "# which is the main shell (apart from the functions entry)."
+for modfile in `cd ${srcdir}; echo */*.mdd */*/*.mdd`; do
+  name=
+  link=
+  load=
+  functions=
+  . ${srcdir}/$modfile
+  if test x$name != x && test x"$link" != x; then
+    case "$userlist" in
+    *" $name "*) # not autogenerated, keep original
+                grep "^name=$name " ${CONFIG_MODULES}.old
+		;;
+    *) case "$link" in
+	  *\ *) eval "link=\`$link\`"
+	       ;;
+       esac
+       case "${load}" in
+	y*) load=" load=yes"
+	    ;;
+	 *) load=" load=no"
+	    ;;
+       esac
+       if test "x$functions" != x; then
+         # N.B. no additional quotes
+         f=" functions=$functions"
+       else
+         f=
+       fi
+       case "$link" in
+	 static) echo "name=$name modfile=$modfile link=static auto=yes${load}$f"
+	         ;;
+	 dynamic) if test $dynamic != no; then
+		    echo "name=$name modfile=$modfile link=dynamic\
+ auto=yes${load}$f"
+		  else
+		    echo "name=$name modfile=$modfile link=no\
+ auto=yes load=no$f"
+		  fi
+		  ;;
+	 either) if test $dynamic != no; then
+		   echo "name=$name modfile=$modfile link=dynamic\
+ auto=yes${load}$f"
+		 else
+		   echo "name=$name modfile=$modfile link=static\
+ auto=yes${load}$f"
+		 fi
+		 ;;
+	      *) echo "name=$name modfile=$modfile link=no auto=yes load=no$f"
+		 ;;
+       esac
+       ;;
+    esac
+  fi
+done) >${CONFIG_MODULES}
+rm -f ${CONFIG_MODULES}.old
+EOM
+AC_OUTPUT_COMMANDS(,[if test -z "\$CONFIG_FILES\$CONFIG_HEADERS"; then
+`cat ./${CONFIG_MODULES}.sh && rm -f ./${CONFIG_MODULES}.sh`
+fi])
+. ./${CONFIG_MODULES}.sh
+
+CLEAN_MK="${srcdir}/Config/clean.mk"
+CONFIG_MK="${srcdir}/Config/config.mk"
+dnl defs.mk is in the build tree, not the source tree
+DEFS_MK="Config/defs.mk"
+VERSION_MK="${srcdir}/Config/version.mk"
+
+AC_SUBST_FILE(CLEAN_MK)dnl
+AC_SUBST_FILE(CONFIG_MK)dnl
+AC_SUBST_FILE(DEFS_MK)dnl
+AC_SUBST_FILE(VERSION_MK)dnl
+
+AC_OUTPUT(Config/defs.mk Makefile Doc/Makefile Etc/Makefile Src/Makefile \
+Test/Makefile,
+[test -z "$CONFIG_HEADERS" || echo > stamp-h])
+
+eval "zshbin1=${bindir}"
+eval "zshbin2=${zshbin1}"
+eval "zshman=${mandir}"
+eval "zshinfo=${infodir}"
+eval "zshfndir=${fndir}"
+
+echo "
+zsh configuration
+-----------------
+zsh version               : ${VERSION}
+host operating system     : ${host_cpu}-${host_vendor}-${host_os}
+source code location      : ${srcdir}
+compiler                  : ${CC}
+preprocessor flags        : ${CPPFLAGS}
+executable compiler flags : ${CFLAGS}"
+if test "$dynamic" = yes; then
+  echo "\
+module compiler flags     : ${CFLAGS} ${DLCFLAGS}"
+fi
+echo "\
+executable linker flags   : ${LDFLAGS} ${EXELDFLAGS} ${EXTRA_LDFLAGS}"
+if test "$dynamic" = yes; then
+  echo "\
+module linker flags       : ${LDFLAGS} ${LIBLDFLAGS} ${DLLDFLAGS}"
+fi
+echo "\
+library flags             : ${LIBS}
+installation basename     : ${tzsh_name}
+binary install path       : ${zshbin2}
+man page install path     : ${zshman}
+info install path         : ${zshinfo}"
+if test "$zshfndir" != no; then
+  echo "functions install path    : ${zshfndir}"
+fi
+echo "See config.modules for installed modules and functions.
+"
 
-m4_include([zshconfig.ac])
 
diff --git a/configure.in b/configure.in
deleted file mode 100644
index 09372c653..000000000
--- a/configure.in
+++ /dev/null
@@ -1,20 +0,0 @@
-
-AC_INIT(Src/zsh.h)
-
-real_no_create=$no_create
-no_create=yes
-
-builtin([include], [zshconfig.ac])
-
-dnl The standard config.status is missing some essential features.
-dnl So add them now.  See the comment at the end of Src/mkmakemod.sh.
-[rm -f $CONFIG_STATUS.old
-cp $CONFIG_STATUS $CONFIG_STATUS.old
-sed '1,$s@^\( *ac_file_inputs=\).*$@\1`echo $ac_file_in | sed -e "s%^%:%" -e "s%:\\([^!]\\)% $ac_given_srcdir/\\1%g" -e "s%:!% %"`@' \
- $CONFIG_STATUS.old >$CONFIG_STATUS
- echo "# Hack for autoconf-2.13" >>$CONFIG_STATUS
- chmod +x $CONFIG_STATUS
- rm -f $CONFIG_STATUS.old]
-
-test "$real_no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1
-
diff --git a/zshconfig.ac b/zshconfig.ac
deleted file mode 100644
index dccc9ae4c..000000000
--- a/zshconfig.ac
+++ /dev/null
@@ -1,2143 +0,0 @@
-dnl
-dnl  zshconfig.ac: Configure template for zsh.
-dnl  Process this file with autoconf to produce a configure script.
-dnl
-dnl  Copyright (c) 1995-1997 Richard Coleman
-dnl  All rights reserved.
-dnl
-dnl  Permission is hereby granted, without written agreement and without
-dnl  license or royalty fees, to use, copy, modify, and distribute this
-dnl  software and to distribute modified versions of this software for any
-dnl  purpose, provided that the above copyright notice and the following
-dnl  two paragraphs appear in all copies of this software.
-dnl
-dnl  In no event shall Richard Coleman or the Zsh Development Group be liable
-dnl  to any party for direct, indirect, special, incidental, or consequential
-dnl  damages arising out of the use of this software and its documentation,
-dnl  even if Richard Coleman and the Zsh Development Group have been advised of
-dnl  the possibility of such damage.
-dnl
-dnl  Richard Coleman and the Zsh Development Group specifically disclaim any
-dnl  warranties, including, but not limited to, the implied warranties of
-dnl  merchantability and fitness for a particular purpose.  The software
-dnl  provided hereunder is on an "as is" basis, and Richard Coleman and the
-dnl  Zsh Development Group have no obligation to provide maintenance,
-dnl  support, updates, enhancements, or modifications.
-dnl
-
-AC_CONFIG_HEADER(config.h)
-
-dnl What version of zsh are we building ?
-. ${srcdir}/Config/version.mk
-echo "configuring for zsh $VERSION"
-
-dnl ----------------------------------------------
-dnl CHECK FOR MACHINE/VENDOR/OPERATING SYSTEM TYPE
-dnl ----------------------------------------------
-dnl Find out machine type, vendor, and operating system
-dnl What type of host is this?
-AC_CANONICAL_HOST
-AC_DEFINE_UNQUOTED(MACHTYPE, "$host_cpu")
-AC_DEFINE_UNQUOTED(VENDOR,   "$host_vendor")
-AC_DEFINE_UNQUOTED(OSTYPE,   "$host_os")
-
-dnl -----------------------------
-dnl CHECKING COMMAND LINE OPTIONS
-dnl -----------------------------
-dnl Handle --program-prefix, --program-suffix, etc.
-zsh_ARG_PROGRAM
-
-dnl Handle setting of compile flags (CPPFLAGS, CFLAGS, LDFLAGS, LIBS).
-zsh_COMPILE_FLAGS($CPPFLAGS, $CFLAGS, $LDFLAGS, $LIBS)
-
-dnl Do you want to debug zsh?
-ifdef([zsh-debug],[undefine([zsh-debug])])dnl
-AC_ARG_ENABLE(zsh-debug,
-[  --enable-zsh-debug         compile with debug code and debugger symbols],
-[if test x$enableval = xyes; then
-  AC_DEFINE(DEBUG)
-fi])
-
-dnl Do you want zsh memory allocation routines.
-ifdef([zsh-mem],[undefine([zsh-mem])])dnl
-AC_ARG_ENABLE(zsh-mem,
-[  --enable-zsh-mem           compile with zsh memory allocation routines],
-[if test x$enableval = xyes; then
-  AC_DEFINE(ZSH_MEM)
-fi])
-
-dnl Do you want to debug zsh memory allocation routines.
-ifdef([zsh-mem-debug],[undefine([zsh-mem-debug])])dnl
-AC_ARG_ENABLE(zsh-mem-debug,
-[  --enable-zsh-mem-debug     debug zsh memory allocation routines],
-[if test x$enableval = xyes; then
-  AC_DEFINE(ZSH_MEM_DEBUG)
-fi])
-
-dnl Do you want to print warnings when errors in memory allocation.
-ifdef([zsh-mem-warning],[undefine([zsh-mem-warning])])dnl
-AC_ARG_ENABLE(zsh-mem-warning,
-[  --enable-zsh-mem-warning   print warnings for errors in memory allocation],
-[if test x$enableval = xyes; then
-  AC_DEFINE(ZSH_MEM_WARNING)
-fi])
-
-dnl Do you want to turn on error checking for free().
-ifdef([zsh-secure-free],[undefine([zsh-secure-free])])dnl
-AC_ARG_ENABLE(zsh-secure-free,
-[  --enable-zsh-secure-free   turn on error checking for free()],
-[if test x$enableval = xyes; then
-  AC_DEFINE(ZSH_SECURE_FREE)
-fi])
-
-dnl Do you want debugging information on internal hash tables.
-dnl This turns on the `hashinfo' builtin command.
-ifdef([zsh-hash-debug],[undefine([zsh-hash-debug])])dnl
-AC_ARG_ENABLE(zsh-hash-debug,
-[  --enable-zsh-hash-debug    turn on debugging of internal hash tables],
-[if test x$enableval = xyes; then
-  AC_DEFINE(ZSH_HASH_DEBUG)
-fi])
-
-dnl Pathnames for global zsh scripts
-ifdef([etcdir],[undefine([etcdir])])dnl
-AC_ARG_ENABLE(etcdir,
-[  --enable-etcdir=DIR        the default directory for global zsh scripts],
-[etcdir="$enableval"], [etcdir=/etc])
-
-ifdef([zshenv],[undefine([zshenv])])dnl
-AC_ARG_ENABLE(zshenv,
-[  --enable-zshenv=FILE       the full pathname of the global zshenv script],
-[zshenv="$enableval"],
-[if test "x$etcdir" = xno; then
-  zshenv=no
-else
-  zshenv="$etcdir/zshenv"
-fi])
-if test "x$zshenv" != xno; then
-  AC_DEFINE_UNQUOTED(GLOBAL_ZSHENV, "$zshenv")
-fi
-
-ifdef([zshrc],[undefine([zshrc])])dnl
-AC_ARG_ENABLE(zshrc,
-[  --enable-zshrc=FILE        the full pathname of the global zshrc script],
-[zshrc="$enableval"],
-[if test "x$etcdir" = xno; then
-  zshrc=no
-else
-  zshrc="$etcdir/zshrc"
-fi])
-if test "x$zshrc" != xno; then
-  AC_DEFINE_UNQUOTED(GLOBAL_ZSHRC, "$zshrc")
-fi
-
-ifdef([zprofile],[undefine([zprofile])])dnl
-AC_ARG_ENABLE(zprofile,
-[  --enable-zprofile=FILE     the full pathname of the global zprofile script],
-[zprofile="$enableval"],
-[if test "x$etcdir" = xno; then
-  zprofile=no
-else
-  zprofile="$etcdir/zprofile"
-fi])
-if test "x$zprofile" != xno; then
-  AC_DEFINE_UNQUOTED(GLOBAL_ZPROFILE, "$zprofile")
-fi
-
-ifdef([zlogin],[undefine([zlogin])])dnl
-AC_ARG_ENABLE(zlogin,
-[  --enable-zlogin=FILE       the full pathname of the global zlogin script],
-[zlogin="$enableval"],
-[if test "x$etcdir" = xno; then
-  zlogin=no
-else
-  zlogin="$etcdir/zlogin"
-fi])
-if test "x$zlogin" != xno; then
-  AC_DEFINE_UNQUOTED(GLOBAL_ZLOGIN, "$zlogin")
-fi
-
-ifdef([zlogout],[undefine([zlogout])])dnl
-AC_ARG_ENABLE(zlogout,
-[  --enable-zlogout=FILE      the full pathname of the global zlogout script],
-[zlogout="$enableval"],
-[if test "x$etcdir" = xno; then
-  zlogout=no
-else
-  zlogout="$etcdir/zlogout"
-fi])
-if test "x$zlogout" != xno; then
-  AC_DEFINE_UNQUOTED(GLOBAL_ZLOGOUT, "$zlogout")
-fi
-
-AC_SUBST(zshenv)dnl
-AC_SUBST(zshrc)dnl
-AC_SUBST(zprofile)dnl
-AC_SUBST(zlogin)dnl
-AC_SUBST(zlogout)dnl
-
-dnl Do you want large file support, if available?
-ifdef([lfs],[undefine([lfs])])dnl
-AC_ARG_ENABLE(lfs,
-[  --disable-lfs              turn off support for large files],
-[lfs="$enableval"], [lfs=yes])
-
-dnl Do you want dynamically loaded binary modules.
-ifdef([dynamic],[undefine([dynamic])])dnl
-AC_ARG_ENABLE(dynamic,
-[  --disable-dynamic          turn off dynamically loaded binary modules],
-[dynamic="$enableval"], [dynamic=yes])
-
-dnl Do you want to disable restricted on r* commands
-ifdef([restricted-r],[undefine([restricted-r])])dnl
-AC_ARG_ENABLE(restricted-r,
-[  --disable-restricted-r     turn off r* invocation for restricted shell],
-[if test x$enableval = xyes; then
-  AC_DEFINE(RESTRICTED_R)
-fi],
-AC_DEFINE(RESTRICTED_R)
-)
-
-dnl Do you want to disable use of locale functions
-AC_ARG_ENABLE([locale],
-[  --disable-locale           turn off locale features],
-[if test x$enableval = xyes; then
-  AC_DEFINE(CONFIG_LOCALE)
-fi],
-AC_DEFINE(CONFIG_LOCALE)
-)
-
-dnl Do you want to compile as K&R C.
-AC_ARG_ENABLE(ansi2knr,
-[  --enable-ansi2knr          translate source to K&R C before compiling],
-[ansi2knr="$enableval"], [ansi2knr=default])
-
-ifdef([fndir],[undefine([fndir])])dnl
-AC_ARG_ENABLE(fndir,
-[  --enable-fndir=DIR         the directory in which to install functions],
-dnl ${VERSION} to be determined at compile time.
-[if test $enableval = yes; then
-  fndir=${datadir}/${tzsh_name}/'${VERSION}'/functions
-else
-  fndir="$enableval"
-fi], [fndir=${datadir}/${tzsh_name}/'${VERSION}'/functions])
-
-ifdef([sitefndir],[undefine([sitefndir])])dnl
-AC_ARG_ENABLE(site-fndir,
-[  --enable-site-fndir=DIR    same for site functions (not version specific)],
-[if test $enableval = yes; then
-  sitefndir=${datadir}/${tzsh_name}/site-functions
-else
-  sitefndir="$enableval"
-fi], [sitefndir=${datadir}/${tzsh_name}/site-functions])
-
-ifdef([function_subdirs],[undefine([function_subdirs])])
-AC_ARG_ENABLE(function-subdirs,
-[  --enable-function-subdirs  install functions in subdirectories])
-
-if test "x${enable_function_subdirs}" != x &&
-  test "x${enable_function_subdirs}" != xno; then
-  FUNCTIONS_SUBDIRS=yes
-else
-  FUNCTIONS_SUBDIRS=no
-fi
-
-AC_SUBST(fndir)dnl
-AC_SUBST(sitefndir)dnl
-AC_SUBST(FUNCTIONS_SUBDIRS)dnl
-
-dnl Do you want maildir support?
-ifdef([maildir_support],[undefine([maildir_support])])dnl
-AC_ARG_ENABLE(maildir-support,
-[  --enable-maildir-support   enable maildir support in MAIL and MAILPATH],
-[if test x$enableval = xyes; then
-  AC_DEFINE(MAILDIR_SUPPORT)
-fi])
-
-dnl Do you want to set a maximum function depth?
-ifdef([max_function_depth],[undefine([max_function_depth])])dnl
-AC_ARG_ENABLE(max-function-depth,
-[  --enable-max-function-depth=MAX   limit function depth to MAX],
-[if test x$enableval = xyes; then
-  AC_DEFINE(MAX_FUNCTION_DEPTH, 4096)
-else
-  AC_DEFINE_UNQUOTED(MAX_FUNCTION_DEPTH, $enableval)
-fi])
-
-dnl ------------------
-dnl CHECK THE COMPILER
-dnl ------------------
-dnl We want these before the checks, so the checks can modify their values.
-test -z "${CFLAGS+set}"  && CFLAGS=  auto_cflags=1
-test -z "${LDFLAGS+set}" && LDFLAGS= auto_ldflags=1
-
-AC_PROG_CC
-
-dnl Check for large file support.
-dnl This needs to be done early to get the stuff into the flags.
-if test $lfs != no; then
-dnl Gross hack for ReliantUNIX - GCC does not understand getconf options
-dnl For now just disable LFS in this case
-dnl Any takers?
-  if test "$host" = mips-sni-sysv4 && test -n "$GCC"; then
-    : 
-  else
-    zsh_LARGE_FILE_SUPPORT
-  fi
-fi
-
-dnl if the user hasn't specified CFLAGS, then
-dnl   if compiler is gcc, then use -O2 and some warning flags
-dnl   else use -O
-if test -n "$auto_cflags" && test ."$ansi2knr" != .yes; then
-  if test "${enable_zsh_debug}" = yes; then
-    if test -n "$GCC"; then
-      CFLAGS="$CFLAGS -Wall -Wmissing-prototypes -ggdb"
-    else
-      CFLAGS="$CFLAGS -g"
-    fi
-  else
-    if test -n "$GCC"; then
-      CFLAGS="$CFLAGS -Wall -Wmissing-prototypes -O2"
-    else
-      CFLAGS="$CFLAGS -O"
-    fi
-  fi
-fi
-if test -n "$auto_ldflags"; then
-  case "${enable_zsh_debug}$host_os" in
-    yesaix*|yeshpux*|yesnetbsd*|yesopenbsd*) ;;  # "ld -g" is not valid on these systems
-    darwin*) LDFLAGS=-Wl,-x ;;
-    yes*)    LDFLAGS=-g ;;
-    *)       LDFLAGS=-s ;;
-  esac
-fi
-
-dnl ----------
-dnl SCO KLUDGE
-dnl ----------
-dnl Sco doesn't define any useful compiler symbol,
-dnl so we will check for sco and define __sco if
-dnl found.
-case "$host_os" in
-  sco*) CFLAGS="-D__sco $CFLAGS" ;;
-esac
-
-sed=':1
-     s/ -s / /g
-     t1
-     s/^ *//
-     s/ *$//'
-
-case " $LDFLAGS " in
-  *" -s "*) strip_exeldflags=true strip_libldflags=true
-    LDFLAGS=`echo " $LDFLAGS " | sed "$sed"` ;;
-  *) strip_exeldflags=false strip_libldflags=false ;;
-esac
-
-case " ${EXELDFLAGS+$EXELDFLAGS }" in
-  " ") ;;
-  *" -s "*) strip_exeldflags=true
-    EXELDFLAGS=`echo " $EXELDFLAGS " | sed "$sed"` ;;
-  *) strip_exeldflags=false ;;
-esac
-
-case " ${LIBLDFLAGS+$LIBLDFLAGS }" in
-  " ") ;;
-  *" -s "*) strip_libldflags=true
-    LIBLDFLAGS=`echo " $LIBLDFLAGS " | sed "$sed"` ;;
-  *) strip_libldflags=false ;;
-esac
-
-AC_SUBST(CFLAGS)dnl
-AC_SUBST(LDFLAGS)dnl
-AC_SUBST(EXELDFLAGS)dnl
-AC_SUBST(LIBLDFLAGS)dnl
-
-AC_PROG_CPP                 dnl Figure out how to run C preprocessor.
-AC_PROG_GCC_TRADITIONAL     dnl Do we need -traditional flag for gcc.
-AC_C_CONST                  dnl Does compiler support `const'.
-
-AC_CYGWIN                   dnl Check for cygwin environment
-
-AC_EXEEXT                   dnl Check for executable extension, e.g. .exe
-
-fp_PROG_CC_STDC
-AC_MSG_CHECKING([whether to use prototypes])
-if test ."$ansi2knr" = .yes || test ."$ansi2knr" = .no; then
-  msg="(overridden) "
-else
-  msg=
-  if test ."$fp_cv_prog_cc_stdc" = .no; then
-    ansi2knr=yes
-  else
-    ansi2knr=no
-  fi
-fi
-if test "$ansi2knr" = yes; then
-  AC_MSG_RESULT(${msg}no)
-  U=_
-else
-  AC_MSG_RESULT(${msg}yes)
-  AC_DEFINE(PROTOTYPES)
-  U=
-fi
-AC_SUBST(U)
-
-AC_FUNC_ALLOCA              dnl Check how to get `alloca'.
-
-dnl If the compiler supports union initialisation
-AC_CACHE_CHECK(if the compiler supports union initialisation,
-zsh_cv_c_have_union_init,
-[AC_TRY_COMPILE([union{void *p;long l;}u={0};], [u.l=1;],
-  zsh_cv_c_have_union_init=yes,
-  zsh_cv_c_have_union_init=no)])
-if test $zsh_cv_c_have_union_init = yes; then
-  AC_DEFINE(HAVE_UNION_INIT)
-fi
-
-dnl  Checking if compiler correctly cast signed to unsigned.
-AC_CACHE_CHECK(if signed to unsigned casting is broken,
-zsh_cv_c_broken_signed_to_unsigned_casting,
-[AC_TRY_RUN([main(){return((int)(unsigned char)((char) -1) == 255);}],
-  zsh_cv_c_broken_signed_to_unsigned_casting=yes,
-  zsh_cv_c_broken_signed_to_unsigned_casting=no,
-  zsh_cv_c_broken_signed_to_unsigned_casting=no)])
-if test $zsh_cv_c_broken_signed_to_unsigned_casting = yes; then
-  AC_DEFINE(BROKEN_SIGNED_TO_UNSIGNED_CASTING)
-fi
-
-dnl Checking if the compiler supports variable-length arrays
-AC_CACHE_CHECK(if the compiler supports variable-length arrays,
-zsh_cv_c_variable_length_arrays,
-[AC_TRY_COMPILE([int foo(), n;], [int i[foo()], a[n+1];],
-  zsh_cv_c_variable_length_arrays=yes,
-  zsh_cv_c_variable_length_arrays=no)])
-if test $zsh_cv_c_variable_length_arrays = yes; then
-  AC_DEFINE(HAVE_VARIABLE_LENGTH_ARRAYS)
-fi
-
-dnl ------------------
-dnl CHECK FOR PROGRAMS
-dnl ------------------
-AC_PROG_MAKE_SET            dnl Does make define $MAKE
-AC_PROG_INSTALL             dnl Check for BSD compatible `install'
-AC_PROG_AWK                 dnl Check for mawk,gawk,nawk, then awk.
-AC_PROG_LN                  dnl Check for working ln, for "make install"
-AC_CHECK_PROGS([YODL], [yodl], [: yodl])
-AC_CHECK_PROGS([ANSI2KNR], [ansi2knr], [: ansi2knr])
-
-if test x"$ansi2knr" = xyes && test x"$ANSI2KNR" = x": ansi2knr"; then
-    echo "----------"
-    echo "configure fatal error:"
-    echo "ansi2knr was specified (--enable-ansi2knr) but the program could not be found."
-    echo "Either remove the configure option if it is not required or build the ansi2knr"
-    echo "program before reconfiguring Zsh.  The source code for ansi2knr is also"
-    echo "available in the GPL directory on Zsh distribution sites."
-    exit 1
-fi
-
-dnl ------------------
-dnl CHECK HEADER FILES
-dnl ------------------
-AC_HEADER_DIRENT
-AC_HEADER_STDC
-AC_HEADER_TIME
-AC_HEADER_STAT
-AC_HEADER_SYS_WAIT
-
-oldcflags="$CFLAGS"
-AC_CHECK_PROG([PCRECONF], pcre-config, pcre-config)
-if test "x$ac_cv_prog_PCRECONF" = xpcre-config; then
-  CFLAGS="$CFLAGS `pcre-config --cflags`"
-fi
-
-AC_CHECK_HEADERS(sys/time.h sys/times.h sys/select.h termcap.h termio.h \
-		 termios.h sys/param.h sys/filio.h string.h memory.h \
-		 limits.h fcntl.h libc.h sys/utsname.h sys/resource.h \
-		 locale.h errno.h stdio.h stdlib.h unistd.h sys/capability.h \
-		 utmp.h utmpx.h sys/types.h pwd.h grp.h poll.h sys/mman.h \
-		 netinet/in_systm.h pcre.h langinfo.h wchar.h stddef.h)
-if test $dynamic = yes; then
-  AC_CHECK_HEADERS(dlfcn.h)
-  AC_CHECK_HEADERS(dl.h)
-fi
-
-dnl Some SCO systems cannot include both sys/time.h and sys/select.h
-if test $ac_cv_header_sys_time_h = yes && test $ac_cv_header_sys_select_h = yes; then
-  AC_CACHE_CHECK(for conflicts in sys/time.h and sys/select.h,
-  zsh_cv_header_time_h_select_h_conflicts,
-  [AC_TRY_COMPILE([#include <sys/time.h>
-#include <sys/select.h>], [int i;],
-  zsh_cv_header_time_h_select_h_conflicts=no,
-  zsh_cv_header_time_h_select_h_conflicts=yes)])
-  if test $zsh_cv_header_time_h_select_h_conflicts = yes; then
-    AC_DEFINE(TIME_H_SELECT_H_CONFLICTS)
-  fi
-fi
-
-AC_CACHE_CHECK(POSIX termios, zsh_cv_sys_posix_termios,
-[AC_TRY_LINK([#include <sys/types.h>
-#include <unistd.h>
-#include <termios.h>],
-[/* SunOS 4.0.3 has termios.h but not the library calls.  */
-tcgetattr(0, 0);],
-  zsh_cv_sys_posix_termios=yes, zsh_cv_sys_posix_termios=no)])
-
-if test $zsh_cv_sys_posix_termios = yes; then
-  AC_CACHE_CHECK(TIOCGWINSZ in termios.h,
-  zsh_cv_header_termios_h_tiocgwinsz,
-  [AC_TRY_LINK([#include <sys/types.h>
-#include <termios.h>],
-  [int x = TIOCGWINSZ;],
-  zsh_cv_header_termios_h_tiocgwinsz=yes,
-  zsh_cv_header_termios_h_tiocgwinsz=no)])
-else
-  zsh_cv_header_termios_h_tiocgwinsz=no
-fi
- 
-if test $zsh_cv_header_termios_h_tiocgwinsz = no; then
-  AC_CACHE_CHECK(TIOCGWINSZ in sys/ioctl.h,
-  zsh_cv_header_sys_ioctl_h_tiocgwinsz,
-  [AC_TRY_LINK([#include <sys/types.h>
-#include <sys/ioctl.h>],
-  [int x = TIOCGWINSZ;],
-  zsh_cv_header_sys_ioctl_h_tiocgwinsz=yes,
-  zsh_cv_header_sys_ioctl_h_tiocgwinsz=no)])
-  if test $zsh_cv_header_sys_ioctl_h_tiocgwinsz = yes; then
-    AC_DEFINE(GWINSZ_IN_SYS_IOCTL)
-  fi
-fi
- 
-AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM))
-
-dnl -------------------
-dnl CHECK FOR LIBRARIES
-dnl -------------------
-
-dnl On some systems, modules need to be linked against libc explicitly,
-dnl in case they require objects that exist only in the static version
-dnl and might not be compiled into the zsh executable.
-dnl On ReliantUNIX -lc better be the last library, else funny things
-dnl may happen.
-AC_CHECK_LIB(c, printf, [LIBS="$LIBS -lc"])
-
-AC_CHECK_LIB(m, pow)
-
-dnl Prefer BSD termcap library to SysV curses library, except on certain
-dnl SYSV-derived systems.
-dnl On HPUX, Hcurses is reported to work better than curses.
-AC_ARG_WITH(curses-terminfo,
-[  --with-curses-terminfo     use terminfo support from curses library],
-[if test x$withval = xyes; then
-  termcap_curses_order="tinfo curses ncurses termcap"
-  AC_SEARCH_LIBS(tigetstr, [$termcap_curses_order])
-else
-  termcap_curses_order="tinfo termcap curses ncurses"
-fi],
-[case "$host_os" in
-  hpux10.*|hpux11.*|solaris*)
-      termcap_curses_order="Hcurses curses ncurses termcap" ;;
-  *)             termcap_curses_order="tinfo termcap curses ncurses" ;;
-esac])dnl
-
-AC_SEARCH_LIBS(tgetent, [$termcap_curses_order])
-case "$LIBS" in
-*curses*)
-AC_CHECK_HEADERS(curses.h, [],
-[AC_CACHE_CHECK(for Solaris 8 curses.h mistake, ac_cv_header_curses_solaris,
-AC_TRY_COMPILE([#include <curses.h>], [],
-[ac_cv_header_curses_h=yes
-ac_cv_header_curses_solaris=yes],
-ac_cv_header_curses_h=no
-ac_cv_header_curses_solaris=no))
-if test x$ac_cv_header_curses_solaris = xyes; then
-AC_DEFINE(HAVE_CURSES_H)
-fi])
-AC_CHECK_HEADERS(term.h,
-[AC_MSG_CHECKING(if term.h needs curses.h)
-AC_TRY_COMPILE([#include <term.h>], [char **test = boolcodes;], boolcodes_with_only_term_h=yes,
-boolcodes_with_only_term_h=no)
-AC_TRY_COMPILE([#include <curses.h>
-#include <term.h>], [char **test = boolcodes;], boolcodes_with_curses_h_and_term_h=yes,
-boolcodes_with_curses_h_and_term_h=no)
-if test "x$boolcodes_with_curses_h_and_term_h" = xyes && test "x$boolcodes_with_only_term_h" = xno;
-then
-AC_DEFINE(TERM_H_NEEDS_CURSES_H)
-AC_MSG_RESULT(yes)
-else
-AC_MSG_RESULT(no)
-fi
-
-AC_MSG_CHECKING(if boolcodes is available)
-AC_TRY_LINK([#ifdef TERM_H_NEEDS_CURSES_H
-#include <curses.h>
-#endif
-#include <term.h>], [char **test = boolcodes; printf(*test);],
-AC_DEFINE(HAVE_BOOLCODES) boolcodes=yes, boolcodes=no)
-AC_MSG_RESULT($boolcodes)
-AC_MSG_CHECKING(if numcodes is available)
-AC_TRY_LINK([#ifdef TERM_H_NEEDS_CURSES_H
-#include <curses.h>
-#endif
-#include <term.h>], [char **test = numcodes; printf(*test);],
-AC_DEFINE(HAVE_NUMCODES) numcodes=yes, numcodes=no)
-AC_MSG_RESULT($numcodes)
-AC_MSG_CHECKING(if strcodes is available)
-AC_TRY_LINK([#ifdef TERM_H_NEEDS_CURSES_H
-#include <curses.h>
-#endif
-#include <term.h>], [char **test = strcodes; printf(*test);],
-AC_DEFINE(HAVE_STRCODES) strcodes=yes, strcodes=no)
-AC_MSG_RESULT($strcodes)
-AC_MSG_CHECKING(if boolnames is available)
-AC_TRY_LINK([#include <curses.h>
-#include <term.h>], [char **test = boolnames; printf(*test);],
-AC_DEFINE(HAVE_BOOLNAMES) boolnames=yes, boolnames=no)
-AC_MSG_RESULT($boolnames)
-AC_MSG_CHECKING(if numnames is available)
-AC_TRY_LINK([#include <curses.h>
-#include <term.h>], [char **test = numnames; printf(*test);],
-AC_DEFINE(HAVE_NUMNAMES) numnames=yes, numnames=no)
-AC_MSG_RESULT($numnames)
-AC_MSG_CHECKING(if strnames is available)
-AC_TRY_LINK([#include <curses.h>
-#include <term.h>], [char **test = strnames; printf(*test);],
-AC_DEFINE(HAVE_STRNAMES) strnames=yes, strnames=no)
-AC_MSG_RESULT($strnames)
-]);;
-esac
-
-dnl Some systems (Solaris 2.x, Linux Redhat 5.x) require
-dnl libnsl (Network Services Library) to find yp_all
-
-AC_SEARCH_LIBS(yp_all, nsl)
-
-dnl I am told that told that unicos reqire these for nis_list
-if test `echo $host_os | sed 's/^\(unicos\).*/\1/'` = unicos; then
-  LIBS="-lcraylm -lkrb -lnisdb -lnsl -lrpcsvc $LIBS"
-fi
-
-if test "x$dynamic" = xyes; then
-  AC_CHECK_LIB(dl, dlopen)
-fi
-
-AC_CHECK_LIB(cap, cap_get_proc)
-
-AC_CHECK_LIB(socket, socket)
-
-AC_CHECK_LIB(iconv, iconv)
-
-dnl pcre-config should probably be employed here
-AC_SEARCH_LIBS(pcre_compile, pcre)
-
-dnl ---------------------
-dnl CHECK TERMCAP LIBRARY
-dnl ---------------------
-dnl Checks for external variable ospeed in the termcap library.
-AC_CACHE_CHECK(if an include file defines ospeed,
-zsh_cv_decl_ospeed_include_defines,
-[AC_TRY_LINK(
-[#include <sys/types.h>
-#if HAVE_TERMIOS_H
-#include <termios.h>
-#endif
-#if HAVE_TERMCAP_H
-#include <termcap.h>
-#endif], [ospeed = 0;],
-zsh_cv_decl_ospeed_include_defines=yes,
-zsh_cv_decl_ospeed_include_defines=no)])
-
-if test $zsh_cv_decl_ospeed_include_defines = no; then
-  AC_CACHE_CHECK(if you must define ospeed,
-  zsh_cv_decl_ospeed_must_define,
-  [AC_TRY_LINK( ,[extern short ospeed; ospeed = 0;],
-  zsh_cv_decl_ospeed_must_define=yes,
-  zsh_cv_decl_ospeed_must_define=no)])
-fi
-
-if test $zsh_cv_decl_ospeed_include_defines = yes; then
-  AC_DEFINE(HAVE_OSPEED)
-elif test $zsh_cv_decl_ospeed_must_define = yes; then
-  AC_DEFINE(HAVE_OSPEED)
-  AC_DEFINE(MUST_DEFINE_OSPEED)
-fi
-
-dnl --------------
-dnl CHECK TYPEDEFS
-dnl --------------
-
-AC_TYPE_SIGNAL
-AC_TYPE_PID_T
-AC_TYPE_OFF_T
-AC_CHECK_TYPE(ino_t, unsigned long)
-AC_TYPE_MODE_T
-AC_TYPE_UID_T
-AC_TYPE_SIZE_T
-
-dnl ------------------------------------------------
-dnl Check size of long and try to find a 64-bit type
-dnl ------------------------------------------------
-dnl AC_CHECK_SIZEOF is no good, because we need the result here,
-dnl and that doesn't seem to define a shell parameter.
-AC_CACHE_CHECK(if long is 64 bits, zsh_cv_long_is_64_bit,
-[AC_TRY_RUN([int main() { return sizeof(long) < 8; }],
-zsh_cv_long_is_64_bit=yes,
-zsh_cv_long_is_64_bit=no,
-zsh_cv_long_is_64_bit=no)])
-
-if test $zsh_cv_long_is_64_bit = yes; then
-  AC_DEFINE(LONG_IS_64_BIT)
-else
-  AC_CACHE_CHECK(if off_t is 64 bit, zsh_cv_off_t_is_64_bit,
-  [AC_TRY_RUN([
-#include <sys/types.h>
-
-main() { return sizeof(off_t) < 8; }
-],
-  zsh_cv_off_t_is_64_bit=yes,
-  zsh_cv_off_t_is_64_bit=no,
-  zsh_cv_off_t_is_64_bit=no)])
-  if test $zsh_cv_off_t_is_64_bit = yes; then
-    AC_DEFINE(OFF_T_IS_64_BIT)
-  fi
-
-  AC_CACHE_CHECK(if ino_t is 64 bit, zsh_cv_ino_t_is_64_bit,
-  [AC_TRY_RUN([
-#include <sys/types.h>
-
-main() { return sizeof(ino_t) < 8; }
-],
-  zsh_cv_ino_t_is_64_bit=yes,
-  zsh_cv_ino_t_is_64_bit=no,
-  zsh_cv_ino_t_is_64_bit=no)])
-  if test $zsh_cv_ino_t_is_64_bit = yes; then
-    AC_DEFINE(INO_T_IS_64_BIT)
-  fi
-
-  if test $lfs != no -o $zsh_cv_off_t_is_64_bit = yes \
-  -o $zsh_cv_ino_t_is_64_bit = yes; then
-    AC_CACHE_CHECK(if compiler has a 64 bit type, zsh_cv_64_bit_type,
-    [if test $lfs != yes && test $lfs != no; then
-      zsh_64_BIT_TYPE(${lfs}, zsh_cv_64_bit_type, force)
-     else
-       zsh_64_BIT_TYPE(long long, zsh_cv_64_bit_type)
-       if test "$zsh_cv_64_bit_type" = no; then
-         zsh_64_BIT_TYPE(quad_t, zsh_cv_64_bit_type)
-       fi
-       if test "$zsh_cv_64_bit_type" = no; then
-         zsh_64_BIT_TYPE(__int64_t, zsh_cv_64_bit_type)
-       fi
-       dnl As a last resort, if we know off_t has 64 bits, use that as
-       dnl the 64-bit integer type.  I don't dare try ino_t since there's
-       dnl probably nothing to stop that being unsigned.
-       if test "$zsh_cv_64_bit_type" = no &&
-          test "$zsh_cv_off_t_is_64_bit" = yes; then
-         zsh_64_BIT_TYPE(off_t, zsh_cv_64_bit_type)
-       fi
-     fi])
-    if test "$zsh_cv_64_bit_type" != no; then
-      AC_DEFINE_UNQUOTED(ZSH_64_BIT_TYPE, $zsh_cv_64_bit_type)
-
-      dnl Handle cases where unsigned type cannot be simply
-      dnl `unsigned ZSH_64_BIT_TYPE'.  More tests may be required.
-      AC_CACHE_CHECK(for a corresponding unsigned 64 bit type,
-      zsh_cv_64_bit_utype,
-      [zsh_64_BIT_TYPE(unsigned $zsh_cv_64_bit_type, zsh_cv_64_bit_utype,
-       force)
-       if test "$zsh_cv_64_bit_utype" = no; then
-         zsh_64_BIT_TYPE(__uint64_t, zsh_cv_64_bit_utype)
-       fi])
-      if test "$zsh_cv_64_bit_utype" != no; then
-        AC_DEFINE_UNQUOTED(ZSH_64_BIT_UTYPE, $zsh_cv_64_bit_utype)
-      fi
-    fi
-  fi
-fi
-
-dnl Check for sigset_t.  Currently I'm looking in
-dnl <sys/types.h> and <signal.h>.  Others might need
-dnl to be added.
-AC_CACHE_CHECK(for sigset_t, zsh_cv_type_sigset_t,
-[AC_TRY_COMPILE(
-[#include <sys/types.h>
-#include <signal.h>], [sigset_t tempsigset;],
-  zsh_cv_type_sigset_t=yes, zsh_cv_type_sigset_t=no)])
-if test $zsh_cv_type_sigset_t = no; then
-  AC_DEFINE(sigset_t, unsigned int)
-fi
-
-dnl Check for struct timezone since some old SCO versions do not define it
-zsh_TYPE_EXISTS([
-#ifdef HAVE_SYS_TIME_H
-# include <sys/time.h>
-#endif
-], struct timezone)
-
-dnl Check for utmp structures, for watch
-zsh_TYPE_EXISTS([
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_UTMP_H
-# include <utmp.h>
-#endif
-], struct utmp)
-zsh_TYPE_EXISTS([
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_UTMPX_H
-# include <utmpx.h>
-#endif
-], struct utmpx)
-
-dnl Check contents of utmp structures
-zsh_STRUCT_MEMBER([
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_UTMP_H
-# include <utmp.h>
-#endif
-], struct utmp, ut_host)
-zsh_STRUCT_MEMBER([
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_UTMPX_H
-# include <utmpx.h>
-#endif
-], struct utmpx, ut_host)
-zsh_STRUCT_MEMBER([
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_UTMPX_H
-# include <utmpx.h>
-#endif
-], struct utmpx, ut_xtime)
-zsh_STRUCT_MEMBER([
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_UTMPX_H
-# include <utmpx.h>
-#endif
-], struct utmpx, ut_tv)
-
-dnl Check for inode numbers in directory entry structures
-zsh_STRUCT_MEMBER([
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_DIRENT_H
-# include <dirent.h>
-#endif
-], struct dirent, d_ino)
-zsh_STRUCT_MEMBER([
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_DIRENT_H
-# include <dirent.h>
-#endif
-], struct dirent, d_stat)
-zsh_STRUCT_MEMBER([
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_NDIR_H
-# include <sys/ndir.h>
-#endif
-#ifdef HAVE_SYS_DIR_H
-# include <sys/dir.h>
-#endif
-#ifdef HAVE_NDIR_H
-# include <ndir.h>
-#endif
-], struct direct, d_ino)
-zsh_STRUCT_MEMBER([
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_NDIR_H
-# include <sys/ndir.h>
-#endif
-#ifdef HAVE_SYS_DIR_H
-# include <sys/dir.h>
-#endif
-#ifdef HAVE_NDIR_H
-# include <ndir.h>
-#endif
-], struct direct, d_stat)
-
-dnl Check IPv6 socket address structure type
-zsh_STRUCT_MEMBER([
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#include <netinet/in.h>
-], struct sockaddr_in6, sin6_scope_id)
-
-dnl Check for h_errno external variable
-AC_CACHE_CHECK(if we need our own h_errno,
-  zsh_cv_decl_h_errno_use_local,
-  [AC_TRY_LINK( ,[extern int h_errno; h_errno = 0;],
-  zsh_cv_decl_h_errno_use_local=no,
-  zsh_cv_decl_h_errno_use_local=yes)])
-
-if test $zsh_cv_decl_h_errno_use_local = yes; then
-  AC_DEFINE(USE_LOCAL_H_ERRNO)
-fi
-
-dnl ---------------
-dnl CHECK FUNCTIONS
-dnl ---------------
-
-dnl need to integrate this function
-dnl AC_FUNC_STRFTIME
-
-AC_CHECK_FUNCS(strftime difftime gettimeofday \
-	       select poll \
-	       readlink faccessx fchdir ftruncate \
-	       fstat lstat lchown \
-	       fseeko ftello \
-	       mkfifo _mktemp mkstemp \
-	       waitpid wait3 \
-	       sigaction sigblock sighold sigrelse sigsetmask sigprocmask \
-	       killpg setpgid setpgrp tcsetpgrp tcgetattr nice \
-	       gethostname gethostbyname2 getipnodebyname \
-	       inet_aton inet_pton inet_ntop \
-	       getlogin getpwent getpwnam getpwuid getgrgid getgrnam \
-	       initgroups nis_list \
-	       setuid seteuid setreuid setresuid setsid \
-	       memcpy memmove strstr strerror \
-	       cap_get_proc \
-	       getrlimit \
-	       setlocale \
-	       uname \
-	       signgam \
-	       putenv getenv \
-	       brk sbrk \
-	       pathconf sysconf \
-	       tgetent tigetflag tigetnum tigetstr setupterm \
-	       pcre_compile pcre_study pcre_exec \
-	       nl_langinfo \
-	       erand48 open_memstream \
-	       wctomb iconv)
-AC_FUNC_STRCOLL
-
-dnl  Check if tgetent accepts NULL (and will allocate its own termcap buffer)
-dnl  Some termcaps reportedly accept a zero buffer, but then dump core
-dnl  in tgetstr().
-dnl  Under Cygwin test program crashes but exit code is still 0. So,
-dnl  we test for a file that porgram should create
-AC_CACHE_CHECK(if tgetent accepts NULL,
-zsh_cv_func_tgetent_accepts_null,
-[AC_TRY_RUN([
-main()
-{
-    char buf[4096];
-    int r1 = tgetent(buf, "vt100");
-    int r2 = tgetent((char*)0,"vt100");
-    if (r1 >= 0 && r1 == r2) {
-        char tbuf[1024], *u;
-        u = tbuf;
-    	tgetstr("cl", &u);
-	creat("conftest.tgetent", 0640);
-    }
-    exit((r1 != r2) || r2 == -1);
-}
-],
-  if test -f conftest.tgetent; then
-    zsh_cv_func_tgetent_accepts_null=yes
-  else
-    zsh_cv_func_tgetent_accepts_null=no
-  fi,
-  zsh_cv_func_tgetent_accepts_null=no,
-  zsh_cv_func_tgetent_accepts_null=no)])
-if test $zsh_cv_func_tgetent_accepts_null = yes; then
-  AC_DEFINE(TGETENT_ACCEPTS_NULL)
-fi
-AC_CACHE_CHECK(if tgetent returns 0 on success,
-zsh_cv_func_tgetent_zero_success,
-[AC_TRY_RUN([
-main()
-{
-    char buf[4096];
-    int r1 = tgetent(buf, "!@#$%^&*");
-    int r2 = tgetent(buf, "vt100");
-    if (r1 < 0 && r2 == 0) {
-        char tbuf[1024], *u;
-        u = tbuf;
-    	tgetstr("cl", &u);
-	creat("conftest.tgetent0", 0640);
-    }
-    exit(r1 == r2);
-}
-],
-  if test -f conftest.tgetent0; then
-    zsh_cv_func_tgetent_zero_success=yes
-  else
-    zsh_cv_func_tgetent_zero_success=no
-  fi,
-  zsh_cv_func_tgetent_zero_success=no,
-  zsh_cv_func_tgetent_zero_success=no)])
-if test $zsh_cv_func_tgetent_zero_success = yes; then
-  AC_DEFINE(TGETENT_SUCCESS, 0)
-else
-  AC_DEFINE(TGETENT_SUCCESS, 1)
-fi
-
-AC_FUNC_MMAP
-if test x$ac_cv_func_mmap_fixed_mapped = xyes; then
-  AC_CHECK_FUNCS(munmap msync)
-fi
-
-if test $ac_cv_func_setpgrp = yes; then
-  AC_FUNC_GETPGRP
-else
-  dnl If there is no setpgrp, the test for getpgrp(void) will fail
-  dnl because the program will not compile.  However, in that case
-  dnl we can be reasonably confident we are not dealing with a
-  dnl Berkeleyesque system, so assume getpgrp does take void.
-  ac_cv_func_getpgrp_void=yes
-  AC_DEFINE(GETPGRP_VOID)
-fi
-
-if test $dynamic = yes; then
-  AC_CHECK_FUNCS(dlopen dlerror dlsym dlclose load loadquery loadbind unload \
-		shl_load shl_unload shl_findsym)
-fi
-
-
-dnl -------------
-dnl CHECK SIGNALS
-dnl -------------
-dnl What style of signal do you have (POSIX, BSD, or SYSV)?
-AC_MSG_CHECKING(what style of signals to use)
-if test $ac_cv_func_sigaction = yes && test $ac_cv_func_sigprocmask = yes; then
-  signals_style=POSIX_SIGNALS
-  AC_DEFINE(POSIX_SIGNALS)
-elif test $ac_cv_func_sigblock = yes && test $ac_cv_func_sigsetmask = yes; then
-  signals_style=BSD_SIGNALS
-  AC_DEFINE(BSD_SIGNALS)
-elif test $ac_cv_func_sighold = yes && test $ac_cv_func_sigrelse = yes; then
-  signals_style=SYSV_SIGNALS
-  AC_DEFINE(SYSV_SIGNALS)
-else
-  signals_style=NO_SIGNAL_BLOCKING
-  AC_DEFINE(NO_SIGNAL_BLOCKING)
-fi
-AC_DEFINE_UNQUOTED($signals_style)
-AC_MSG_RESULT($signals_style)
-
-dnl Where is <signal.h> located?  Needed as input for signals.awk
-AC_CACHE_CHECK(where signal.h is located, zsh_cv_path_signal_h,
-[dnl Look at the output from the preprocessor.
-dnl We should get lines of the form `# 1 "/usr/include/signal.h"'
-dnl The following assumes the real definitions are in a file which
-dnl contains the name `sig'; we could relax this if necessary,
-dnl but then you can get a rather long list of files to test.
-dnl The backslash substitution is to persuade cygwin to cough up
-dnl slashes rather than doubled backslashes in the path.
-echo "#include <signal.h>" > nametmp.c
-sigfile_list="`$CPP nametmp.c |
-sed -n -e 's/^#line[ 	].*\"\(.*\)\"/\1/p' \
-       -e 's/^#[ 	].*\"\(.*\)\"/\1/p' |
-sed 's/\\\\\\\\/\//g' |
-$AWK '{ if (\$1 ~ \"sig\") files[[\$1]] = \$1 }
-  END { for (var in files) print var }'`"
-rm -f nametmp.c
-if test -z "$sigfile_list"; then
-  dnl In case we don't get the stuff from the preprocesor, use the old
-  dnl list of standard places.
-  sigfile_list="/usr/include/sys/iso/signal_iso.h
-/usr/include/bsd/sys/signal.h
-/usr/include/signum.h
-/usr/include/asm/signum.h
-/usr/include/asm/signal.h
-/usr/include/linux/signal.h
-/usr/include/sys/signal.h
-/usr/include/bits/signum.h
-/dev/null"
-fi
-for SIGNAL_H in $sigfile_list
-do
-  dnl Try to make sure it doesn't get confused by files that don't
-  dnl have real signal definitions in, but do #define SIG* by counting
-  dnl the number of signals.  Maybe we could even check for e.g. SIGHUP?
-  nsigs=`test -f $SIGNAL_H && \
-  grep '#[ 	]*define[ 	][ 	]*SIG[0-9A-Z]*[ 	]*[0-9][0-9]*' $SIGNAL_H | \
-  wc -l | sed 's/[ 	]//g'`
-  test "x$nsigs" != x && test "$nsigs" -ge 7 && break
-done
-if test $SIGNAL_H = "/dev/null"; then
-  AC_MSG_ERROR(SIGNAL MACROS NOT FOUND:  please report to developers)
-fi
-zsh_cv_path_signal_h=$SIGNAL_H
-])
-SIGNAL_H=$zsh_cv_path_signal_h
-AC_SUBST(SIGNAL_H)dnl
-
-dnl Where are error names located?  Needed as input for errnames1.awk
-AC_CACHE_CHECK(where error names are located, zsh_cv_path_errno_h,
-[dnl Look at the output from the preprocessor.
-dnl We should get lines of the form `# 1 "/usr/include/errno.h"'
-dnl The following assumes the real definitions are in a file which
-dnl contains the name `err'; we could relax this if necessary,
-dnl but then you can get a rather long list of files to test.
-dnl The backslash substitution is to persuade cygwin to cough up
-dnl slashes rather than doubled backslashes in the path.
-echo "#include <errno.h>" > nametmp.c
-errfile_list="`$CPP nametmp.c |
-sed -n -e 's/^#line[ 	].*\"\(.*\)\"/\1/p' \
-       -e 's/^#[ 	].*\"\(.*\)\"/\1/p' |
-sed 's/\\\\\\\\/\//g' |
-$AWK '{ if (\$1 ~ \"err\") files[[\$1]] = \$1 }
-  END { for (var in files) print var }'`"
-rm -f nametmp.c
-for ERRNO_H in $errfile_list /dev/null
-do
-  dnl Try to make sure it doesn't get confused by files that don't
-  dnl have real error definitions in.  Count definitions to make sure.
-  nerrs=`test -f $ERRNO_H && \
-  grep '#[ 	]*define[ 	][ 	]*E[0-9A-Z]*[ 	]*[0-9][0-9]*' $ERRNO_H | \
-  wc -l | sed 's/[ 	]//g'`
-  test "x$nerrs" != x && test "$nerrs" -ge 7 && break
-done
-if test $ERRNO_H = "/dev/null"; then
-  AC_MSG_ERROR(ERROR MACROS NOT FOUND:  please report to developers)
-fi
-zsh_cv_path_errno_h=$ERRNO_H
-])
-ERRNO_H=$zsh_cv_path_errno_h
-AC_SUBST(ERRNO_H)dnl
-
-dnl -----------------------------------------------------
-dnl Look for the file containing the RLIMIT_* definitions
-dnl -----------------------------------------------------
-dnl CALL FOR MORE (FEWER?) LOCATIONS:  I've just copied the signal checking.
-AC_CACHE_CHECK(where the RLIMIT macros are located,zsh_cv_path_rlimit_h,
-[for RESOURCE_H in /usr/include/bsd/sys/resource.h   dnl
-                   /usr/include/asm/resource.h	     dnl
-                   /usr/include/linux/resource.h     dnl
-                   /usr/include/sys/resource.h       dnl
-                   /usr/include/bits/resource.h      dnl
-                   /usr/include/resourcebits.h       dnl
-                   /dev/null;
-do
-  test -f $RESOURCE_H && \
-  grep '#[ 	]*define[ 	][ 	]*RLIMIT_[A-Z]*[ 	]*[0-9A-Z][0-9]*' $RESOURCE_H > /dev/null && \
-  break
-done
-zsh_cv_path_rlimit_h=$RESOURCE_H
-if test $RESOURCE_H = "/dev/null" && test $ac_cv_func_getrlimit = yes; then
-  AC_MSG_WARN(RLIMIT MACROS NOT FOUND:  please report to developers)
-fi])
-RLIMITS_INC_H=$zsh_cv_path_rlimit_h
-if test "$RLIMITS_INC_H" = "/dev/null"; then
-  RLIMITS_INC_H=''
-fi
-dnl rlimits.h only appears in dependencies if we are actually using it.
-dnl We are using it any time we have getrlimit, though if the macros were
-dnl not found we simply awk through /dev/null and fail to find them.
-dnl Thus, limit won't work, but at least the shell will compile.
-AC_SUBST(RLIMITS_INC_H)dnl
-
-dnl ------------------
-dnl rlimit type checks
-dnl ------------------
-DEFAULT_RLIM_T=long
-AC_CACHE_CHECK(if rlim_t is longer than a long,
-zsh_cv_rlim_t_is_longer,
-[AC_TRY_RUN([
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#include <sys/resource.h>
-main(){struct rlimit r;exit(sizeof(r.rlim_cur) <= sizeof(long));}],
-zsh_cv_rlim_t_is_longer=yes,
-zsh_cv_rlim_t_is_longer=no,
-zsh_cv_rlim_t_is_longer=yes)])
-if test $zsh_cv_rlim_t_is_longer = yes; then
-  AC_CACHE_CHECK(if rlim_t is a quad,
-  zsh_cv_rlim_t_is_quad_t,
-  [AC_TRY_RUN([
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#include <stdio.h>
-#include <sys/resource.h>
-main() { 
-  struct rlimit r;
-  char buf[20];
-  r.rlim_cur = 0;
-  sprintf(buf, "%qd", r.rlim_cur);
-  exit(strcmp(buf, "0"));
-}],
-  zsh_cv_rlim_t_is_quad_t=yes,
-  zsh_cv_rlim_t_is_quad_t=no,
-  zsh_cv_rlim_t_is_quad_t=no)])
-  if test $zsh_cv_rlim_t_is_quad_t = yes; then
-    AC_DEFINE(RLIM_T_IS_QUAD_T)
-    DEFAULT_RLIM_T=quad_t
-  else
-    AC_DEFINE(RLIM_T_IS_LONG_LONG)
-    DEFAULT_RLIM_T='long long'
-  fi
-else
-  AC_CACHE_CHECK(if the rlim_t is unsigned,
-  zsh_cv_type_rlim_t_is_unsigned,
-  [AC_TRY_RUN([
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#include <sys/resource.h>
-  main(){struct rlimit r;r.rlim_cur=-1;exit(r.rlim_cur<0);}],
-  zsh_cv_type_rlim_t_is_unsigned=yes,
-  zsh_cv_type_rlim_t_is_unsigned=no,
-  zsh_cv_type_rlim_t_is_unsigned=no)])
-  if test $zsh_cv_type_rlim_t_is_unsigned = yes; then
-    AC_DEFINE(RLIM_T_IS_UNSIGNED)
-    DEFAULT_RLIM_T="unsigned $DEFAULT_RLIM_T"
-  fi
-fi
-
-AC_CACHE_CHECK(for rlim_t, zsh_cv_type_rlim_t,
-[AC_TRY_COMPILE([
-#include <sys/types.h>
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#include <sys/resource.h>],
-[rlim_t l;],
-zsh_cv_type_rlim_t=yes,
-zsh_cv_type_rlim_t=no)])
-if test $zsh_cv_type_rlim_t = no; then
-  AC_DEFINE_UNQUOTED(rlim_t, $DEFAULT_RLIM_T)
-fi
-
-
-dnl On some systems the RLIMIT_* don't evaluate to integers at compile time
-dnl (they may be enums).  In this case we are not able to do preprocessor
-dnl comparisons and need our tests to determine what values exist and
-dnl if there are clashing definitions.
-
-zsh_LIMIT_PRESENT(RLIMIT_AIO_MEM)
-zsh_LIMIT_PRESENT(RLIMIT_AIO_OPS)
-zsh_LIMIT_PRESENT(RLIMIT_AS)
-zsh_LIMIT_PRESENT(RLIMIT_LOCKS)
-zsh_LIMIT_PRESENT(RLIMIT_MEMLOCK)
-zsh_LIMIT_PRESENT(RLIMIT_NPROC)
-zsh_LIMIT_PRESENT(RLIMIT_NOFILE)
-zsh_LIMIT_PRESENT(RLIMIT_PTHREAD)
-zsh_LIMIT_PRESENT(RLIMIT_RSS)
-zsh_LIMIT_PRESENT(RLIMIT_SBSIZE)
-zsh_LIMIT_PRESENT(RLIMIT_TCACHE)
-zsh_LIMIT_PRESENT(RLIMIT_VMEM)
-
-AC_CACHE_CHECK(if RLIMIT_VMEM and RLIMIT_RSS are the same,
-zsh_cv_rlimit_vmem_is_rss,
-[AC_TRY_RUN([
-#include <sys/types.h>
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#include <sys/resource.h>
-int main()
-{
-int ret = 1;
-#if defined(HAVE_RLIMIT_VMEM) && defined(HAVE_RLIMIT_RSS)
-if (RLIMIT_RSS == RLIMIT_VMEM) ret = 0;
-#endif
-return ret;
-}],
-  zsh_cv_rlimit_vmem_is_rss=yes,
-  zsh_cv_rlimit_vmem_is_rss=no,
-  zsh_cv_rlimit_vmem_is_rss=no)])
-
-if test $zsh_cv_rlimit_vmem_is_rss = yes; then
-  AC_DEFINE(RLIMIT_VMEM_IS_RSS)
-fi
-
-
-AC_CACHE_CHECK(if RLIMIT_VMEM and RLIMIT_AS are the same,
-zsh_cv_rlimit_vmem_is_as,
-[AC_TRY_RUN([
-#include <sys/types.h>
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#include <sys/resource.h>
-int main()
-{
-int ret = 1;
-#if defined(HAVE_RLIMIT_VMEM) && defined(HAVE_RLIMIT_AS)
-if (RLIMIT_AS == RLIMIT_VMEM) ret = 0;
-#endif
-return ret;
-}],
-  zsh_cv_rlimit_vmem_is_as=yes,
-  zsh_cv_rlimit_vmem_is_as=no,
-  zsh_cv_rlimit_vmem_is_as=no)])
-
-if test $zsh_cv_rlimit_vmem_is_as = yes; then
-  AC_DEFINE(RLIMIT_VMEM_IS_AS)
-fi
-
-
-dnl --------------------------------------------
-dnl CHECK FOR DEFAULT PATH (used for command -p)
-dnl --------------------------------------------
-AC_CACHE_VAL(zsh_cv_cs_path,
-[if getconf _CS_PATH >/dev/null 2>&1; then
-  zsh_cv_cs_path=`getconf _CS_PATH`
-elif getconf CS_PATH >/dev/null 2>&1; then
-  zsh_cv_cs_path=`getconf CS_PATH`
-else
-  zsh_cv_cs_path="/bin:/usr/bin"
-fi])
-AC_DEFINE_UNQUOTED(DEFAULT_PATH, "$zsh_cv_cs_path")
-
-
-dnl ----------------------------
-dnl CHECK FOR /dev/fd FILESYSTEM
-dnl ----------------------------
-AC_CACHE_CHECK(for /dev/fd filesystem, zsh_cv_sys_path_dev_fd,
-[for zsh_cv_sys_path_dev_fd in /proc/self/fd /dev/fd no; do
-   test x`echo ok|cat $zsh_cv_sys_path_dev_fd/0 2>/dev/null` = xok && break
- done])
-if test $zsh_cv_sys_path_dev_fd != no; then
-  AC_DEFINE_UNQUOTED(PATH_DEV_FD, "$zsh_cv_sys_path_dev_fd")
-fi
-
-dnl ---------------------------------
-dnl CHECK FOR RFS SUPERROOT DIRECTORY
-dnl ---------------------------------
-AC_CACHE_CHECK(for RFS superroot directory, zsh_cv_sys_superroot,
-[test -d /../.LOCALROOT && zsh_cv_sys_superroot=yes || zsh_cv_sys_superroot=no])
-if test $zsh_cv_sys_superroot = yes; then
-  AC_DEFINE(HAVE_SUPERROOT)
-fi
-
-dnl CHECK FOR SYSTEMS REQUIRING GETCWD
-AC_CACHE_CHECK(whether we should use the native getcwd,
-zsh_cv_use_getcwd,
-[case "${host_cpu}-${host_vendor}-${host_os}" in
-    *QNX*) zsh_cv_use_getcwd=yes ;;
-    *) zsh_cv_use_getcwd=no ;;
- esac])
-if test $zsh_cv_use_getcwd = yes; then
-  AC_DEFINE(USE_GETCWD)
-fi
-
-dnl -------------
-dnl CHECK FOR NIS
-dnl -------------
-AC_CACHE_CHECK(for NIS, zsh_cv_sys_nis,
-[test -f /usr/bin/ypcat && /usr/bin/ypcat passwd.byname > /dev/null 2>&1 && \
-zsh_cv_sys_nis=yes || zsh_cv_sys_nis=no])
-if test $zsh_cv_sys_nis = yes; then
-  AC_DEFINE(HAVE_NIS)
-fi
-
-dnl -----------------
-dnl CHECK FOR NISPLUS
-dnl -----------------
-AC_CACHE_CHECK(for NIS+, zsh_cv_sys_nis_plus,
-[test $ac_cv_func_nis_list = yes && test -f /usr/bin/nisls && \
- /usr/bin/nisls > /dev/null 2>&1 && \
-zsh_cv_sys_nis_plus=yes || zsh_cv_sys_nis_plus=no])
-if test $zsh_cv_sys_nis_plus = yes; then
-  AC_DEFINE(HAVE_NIS_PLUS)
-fi
-
-dnl ----------------------------------------
-dnl CHECK FOR LOCATION OF {U,W}TMP{,X} FILES
-dnl ----------------------------------------
-zsh_PATH_UTMP(utmp)
-zsh_PATH_UTMP(wtmp)
-zsh_PATH_UTMP(utmpx)
-zsh_PATH_UTMP(wtmpx)
-
-dnl -------------------
-dnl brk/sbrk PROTOTYPES
-dnl -------------------
-AC_CACHE_CHECK(for brk() prototype in <unistd.h>,
-zsh_cv_header_unistd_h_brk_proto,
-[AC_TRY_COMPILE([#include <unistd.h>
-double brk();], [int i;],
-zsh_cv_header_unistd_h_brk_proto=no, zsh_cv_header_unistd_h_brk_proto=yes)])
-if test $zsh_cv_header_unistd_h_brk_proto = yes; then
-  AC_DEFINE(HAVE_BRK_PROTO)
-fi
-
-AC_CACHE_CHECK(for sbrk() prototype in <unistd.h>,
-zsh_cv_header_unistd_h_sbrk_proto,
-[AC_TRY_COMPILE([#include <unistd.h>
-double sbrk();], [int i;],
-zsh_cv_header_unistd_h_sbrk_proto=no, zsh_cv_header_unistd_h_sbrk_proto=yes)])
-if test $zsh_cv_header_unistd_h_sbrk_proto = yes; then
-  AC_DEFINE(HAVE_SBRK_PROTO)
-fi
-
-dnl ----------------------------------
-dnl ioctl and mknod prototypes for OSF
-dnl ----------------------------------
-
-if test "$ac_cv_prog_cc_stdc" != no; then
-  AC_CACHE_CHECK(for ioctl prototype in <sys/ioctl.h>,
-  zsh_cv_header_sys_ioctl_h_ioctl_proto,
-  [AC_TRY_COMPILE([#include <sys/ioctl.h>
-   int ioctl(double x);], [int i;],
-  zsh_cv_header_sys_ioctl_h_ioctl_proto=no,
-  zsh_cv_header_sys_ioctl_h_ioctl_proto=yes)])
-  if test $zsh_cv_header_sys_ioctl_h_ioctl_proto = yes; then
-    AC_DEFINE(HAVE_IOCTL_PROTO)
-  fi
-  AC_CACHE_CHECK(for mknod prototype in <sys/stat.h>,
-  zsh_cv_header_sys_stat_h_mknod_proto,
-  [AC_TRY_COMPILE([#include <sys/stat.h>
-   int mknod(double x);], [int i;],
-  zsh_cv_header_sys_stat_h_mknod_proto=no,
-  zsh_cv_header_sys_stat_h_mknod_proto=yes)])
-  if test $zsh_cv_header_sys_stat_h_mknod_proto = yes; then
-    AC_DEFINE(HAVE_MKNOD_PROTO)
-  fi
-fi
-
-dnl -------------------
-dnl select() defined in <sys/socket.h>, ie BeOS R4.51
-dnl -------------------
-if test $ac_cv_header_sys_select_h != yes; then
-  AC_CACHE_CHECK(for select() in <sys/socket.h>,
-  zsh_cv_header_socket_h_select_proto,
-  [AC_TRY_COMPILE([#include <sys/socket.h>], [fd_set fd;],
-  zsh_cv_header_socket_h_select_proto=yes, 
-  zsh_cv_header_socket_h_select_proto=no)])
-  if test $zsh_cv_header_socket_h_select_proto = yes; then
-    AC_DEFINE(SELECT_IN_SYS_SOCKET_H)
-  fi
-fi
-
-dnl -----------
-dnl named FIFOs
-dnl -----------
-AC_CACHE_CHECK(if named FIFOs work,
-zsh_cv_sys_fifo,
-[AC_TRY_RUN([
-#include <fcntl.h>
-#include <signal.h>
-main()
-{
-    char c;
-    int fd;
-    int pid, ret;
-    unlink("/tmp/fifo$$");
-#ifdef HAVE_MKFIFO
-    if(mkfifo("/tmp/fifo$$", 0600) < 0)
-#else
-    if(mknod("/tmp/fifo$$", 0010600, 0) < 0)
-#endif
-	exit(1);
-    pid = fork();
-    if(pid < 0)
-	exit(1);
-    if(pid) {
-	fd = open("/tmp/fifo$$", O_RDONLY);
-	exit(fd < 0 || read(fd, &c, 1) != 1 || c != 'x');
-    }
-    fd = open("/tmp/fifo$$", O_WRONLY);
-    ret = (fd < 0 || write(fd, "x", 1) < 1);
-    unlink("/tmp/fifo$$");
-    exit(ret);
-}
-],
-  zsh_cv_sys_fifo=yes,
-  zsh_cv_sys_fifo=no,
-  zsh_cv_sys_fifo=yes)])
-if test $zsh_cv_sys_fifo = yes; then
-  AC_DEFINE(HAVE_FIFOS)
-fi
-dnl ---------------------
-dnl echo style of /bin/sh
-dnl ---------------------
-AC_CACHE_CHECK(if echo in /bin/sh interprets escape sequences,
-zsh_cv_prog_sh_echo_escape,
-[if test "`/bin/sh -c \"echo '\\n'\"`" = "\\n"; then
-  zsh_cv_prog_sh_echo_escape=no
-else
-  zsh_cv_prog_sh_echo_escape=yes
-fi])
-if test $zsh_cv_prog_sh_echo_escape = no; then
-  AC_DEFINE(SH_USE_BSD_ECHO)
-fi
-
-dnl -----------
-dnl test for whether link() works
-dnl for instance, BeOS R4.51 doesn't support hard links yet
-dnl -----------
-AC_CACHE_CHECK(if link() works,
-zsh_cv_sys_link,
-[AC_TRY_RUN([
-#include <unistd.h>
-#include <fcntl.h>
-main()
-{
-    int ret;
-    char *tmpfile, *newfile;
-    tmpfile="/tmp/zsh.linktest$$";
-    newfile="/tmp/zsh.linktest2$$";
-    unlink(tmpfile);
-    unlink(newfile);
-    if(creat(tmpfile, 0644) < 0)
-	exit(1);
-    ret = link(tmpfile, newfile);
-    unlink(tmpfile);
-    unlink(newfile);
-    exit(ret<0);
-}
-],
-  zsh_cv_sys_link=yes,
-  zsh_cv_sys_link=no,
-  zsh_cv_sys_link=yes)])
-if test $zsh_cv_sys_link = yes; then
-  AC_DEFINE(HAVE_LINK)
-fi
-
-dnl -----------
-dnl test for whether kill(pid, 0) where pid doesn't exit
-dnl should set errno to ESRCH, but some like BeOS R4.51 set to EINVAL
-dnl -----------
-AC_CACHE_CHECK(if kill(pid, 0) returns ESRCH correctly,
-zsh_cv_sys_killesrch,
-[AC_TRY_RUN([
-#include <unistd.h>
-#include <signal.h>
-#include <errno.h>
-main()
-{
-    int pid = (getpid() + 10000) & 0xffffff;
-    while (pid && (kill(pid, 0) == 0 || errno != ESRCH)) pid >>= 1;
-    exit(errno!=ESRCH);
-}
-],
-  zsh_cv_sys_killesrch=yes,
-  zsh_cv_sys_killesrch=no,
-  zsh_cv_sys_killesrch=yes)])
-if test $zsh_cv_sys_killesrch = no; then
-  AC_DEFINE(BROKEN_KILL_ESRCH)
-fi
-
-dnl -----------
-dnl if POSIX, test for working sigsuspend().
-dnl for instance, BeOS R4.51 is broken.
-dnl -----------
-if test $signals_style = POSIX_SIGNALS; then
-    AC_CACHE_CHECK(if POSIX sigsuspend() works,
-    zsh_cv_sys_sigsuspend,
-    [AC_TRY_RUN([
-#include <signal.h>
-#include <unistd.h>
-int child=0;
-void handler(sig)
-    int sig;
-{if(sig==SIGCHLD) child=1;}
-main() {
-    struct sigaction act;
-    sigset_t set;
-    int pid, ret;
-    act.sa_handler = &handler;
-    sigfillset(&act.sa_mask);
-    act.sa_flags = 0;
-    sigaction(SIGCHLD, &act, 0);
-    sigfillset(&set);
-    sigprocmask(SIG_SETMASK, &set, 0);
-    pid=fork();
-    if(pid==0) return 0;
-    if(pid>0) {
-    sigemptyset(&set);
-        ret=sigsuspend(&set);
-        exit(child==0);
-    }
-}
-],
-      zsh_cv_sys_sigsuspend=yes,
-      zsh_cv_sys_sigsuspend=no,
-      zsh_cv_sys_sigsuspend=yes)])
-    if test $zsh_cv_sys_sigsuspend = no; then
-      AC_DEFINE(BROKEN_POSIX_SIGSUSPEND)
-    fi
-fi
-
-dnl -----------
-dnl if found tcsetpgrp, test to see if it actually works
-dnl for instance, BeOS R4.51 does not support it yet
-dnl -----------
-if test -t 0 && test $ac_cv_func_tcsetpgrp = yes; then
-    AC_CACHE_CHECK(if tcsetpgrp() actually works,
-    zsh_cv_sys_tcsetpgrp,
-    [AC_TRY_RUN([
-#include <sys/types.h>
-#include <unistd.h>
-main() {
-    int ret;
-    ret=tcsetpgrp(0, tcgetpgrp(0));
-    exit(ret<0);
-}
-],
-      zsh_cv_sys_tcsetpgrp=yes,
-      zsh_cv_sys_tcsetpgrp=no,
-      zsh_cv_sys_tcsetpgrp=yes)])
-    if test $zsh_cv_sys_tcsetpgrp = no; then
-      AC_DEFINE(BROKEN_TCSETPGRP)
-    fi
-fi
-
-dnl -----------
-dnl test for faked getpwnam() entry, ie a single entry returned for any username
-dnl for instance, BeOS R4.51 is not multiuser yet, and fakes getpwnam()
-dnl test by looking up two usernames that shouldn't succeed, and compare entry
-dnl -----------
-if test $ac_cv_func_getpwnam = yes; then
-    AC_CACHE_CHECK(if getpwnam() is faked,
-    zsh_cv_sys_getpwnam_faked,
-    [AC_TRY_RUN([
-#include <pwd.h>
-main() {
-    struct passwd *pw1, *pw2;
-    char buf[1024], name[1024];
-    sprintf(buf, "%d:%d", getpid(), rand());
-    pw1=getpwnam(buf);
-    if (pw1) strcpy(name, pw1->pw_name);
-    sprintf(buf, "%d:%d", rand(), getpid());
-    pw2=getpwnam(buf);
-    exit(pw1!=0 && pw2!=0 && !strcmp(name, pw2->pw_name));
-}
-],
-      zsh_cv_sys_getpwnam_faked=no,
-      zsh_cv_sys_getpwnam_faked=yes,
-      zsh_cv_sys_getpwnam_faked=no)])
-    if test $zsh_cv_sys_getpwnam_faked = yes; then
-      AC_DEFINE(GETPWNAM_FAKED)
-    fi
-fi
-
-
-dnl ---------------
-dnl check for the type of third argument of accept
-dnl ---------------
-
-zsh_CHECK_SOCKLEN_T
-
-dnl ---------------
-dnl dynamic loading
-dnl ---------------
-L=N
-INSTLIB="install.bin-\$(L)"
-UNINSTLIB="uninstall.bin-\$(L)"
-LINKMODS=NOLINKMODS
-MOD_EXPORT=
-MOD_IMPORT_VARIABLE=
-MOD_IMPORT_FUNCTION=
-aixdynamic=no
-hpuxdynamic=no
-if test "$ac_cv_func_load"      = yes &&
-   test "$ac_cv_func_unload"    = yes &&
-   test "$ac_cv_func_loadbind"  = yes &&
-   test "$ac_cv_func_loadquery" = yes; then
-  dnl Force AIXDYNAMIC even on newer versions that have dl family
-  if test "x$dynamic" = xyes; then
-    aixdynamic=yes
-  fi
-elif test "$ac_cv_func_dlopen"  != yes ||
-     test "$ac_cv_func_dlsym"   != yes ||
-     test "$ac_cv_func_dlerror" != yes; then
-  if test "$ac_cv_func_shl_load" != yes ||
-     test "$ac_cv_func_shl_unload" != yes ||
-     test "$ac_cv_func_shl_findsym" != yes; then
-    dynamic=no
-  elif test "x$dynamic" = xyes; then
-    hpuxdynamic=yes
-    DL_EXT="${DL_EXT=sl}"
-    dnl autoheader won't allow us to define anything which isn't
-    dnl going into a header, and we can't undefine anything, so
-    dnl just define this anyway and rely on the later tests to
-    dnl define DYNAMIC or not.
-    AC_DEFINE(HPUXDYNAMIC)dnl
-  fi
-fi
-
-test -n "$GCC" && LDARG=-Wl,
-
-if test "x$aixdynamic" = xyes; then
-  DL_EXT="${DL_EXT=so}"
-  DLLD="${DLLD=$CC}"
-  zsh_cv_func_dlsym_needs_underscore=no
-  if test -n "$GCC"; then
-    DLLDFLAGS=${DLLDFLAGS=-shared}
-  else
-    DLLDFLAGS=${DLLDFLAGS=-bM:SRE}
-  fi
-  DLLDFLAGS=${DLLDFLAGS=}
-  EXTRA_LDFLAGS=${EXTRA_LDFLAGS=}
-  EXPOPT=${LDARG}-bE:
-  IMPOPT=${LDARG}-bI:
-  zsh_cv_sys_dynamic_clash_ok="${zsh_cv_sys_dynamic_clash_ok=yes}"
-  zsh_cv_sys_dynamic_rtld_global="${zsh_cv_sys_dynamic_rtld_global=yes}"
-  zsh_cv_sys_dynamic_execsyms="${zsh_cv_sys_dynamic_execsyms=yes}"
-  zsh_cv_sys_dynamic_strip_exe="${zsh_cv_sys_dynamic_strip_exe=yes}"
-  zsh_cv_sys_dynamic_strip_lib="${zsh_cv_sys_dynamic_strip_lib=yes}"
-  zsh_cv_shared_environ="${zsh_cv_shared_environ=yes}"
-elif test "$host_os" = cygwin; then
-  DL_EXT="${DL_EXT=dll}"
-  DLLD="${DLLD=dllwrap}"
-  DLLDFLAGS="${DLLDFLAGS=--export-all-symbols}"
-  zsh_cv_func_dlsym_needs_underscore=no
-  DLLDFLAGS=${DLLDFLAGS=}
-  EXTRA_LDFLAGS=${EXTRA_LDFLAGS=}
-  zsh_cv_sys_dynamic_clash_ok="${zsh_cv_sys_dynamic_clash_ok=no}"
-  zsh_cv_sys_dynamic_rtld_global="${zsh_cv_sys_dynamic_rtld_global=yes}"
-  zsh_cv_sys_dynamic_execsyms="${zsh_cv_sys_dynamic_execsyms=no}"
-  zsh_cv_sys_dynamic_strip_exe="${zsh_cv_sys_dynamic_strip_exe=yes}"
-  zsh_cv_sys_dynamic_strip_lib="${zsh_cv_sys_dynamic_strip_lib=yes}"
-  #
-  # THAT SUCKS! and must be changed
-  #
-  zsh_cv_shared_environ="${zsh_cv_shared_environ=yes}"
-  LINKMODS=LINKMODS
-  MOD_EXPORT="__attribute__((__dllexport__))"
-  MOD_IMPORT_VARIABLE="__attribute__((__dllimport__))"
-  MOD_IMPORT_FUNCTION=
-elif test "x$dynamic" = xyes; then
-  AC_CACHE_CHECK(if your system uses ELF binaries,
-   zsh_cv_sys_elf,
-   [AC_TRY_RUN([/* Test for whether ELF binaries are produced */
-#include <fcntl.h>
-#include <stdlib.h>
-main(argc, argv)
-int argc;
-char *argv[];
-{
-	char b[4];
-	int i = open(argv[0],O_RDONLY);
-	if(i == -1) 
-		exit(1); /* fail */
-	if(read(i,b,4)==4 && b[0]==127 && b[1]=='E' && b[2]=='L' && b[3]=='F')
-		exit(0); /* succeed (yes, it's ELF) */
-	else
-		exit(1); /* fail */
-}],
-  zsh_cv_sys_elf=yes,
-  zsh_cv_sys_elf=no,
-  zsh_cv_sys_elf=yes)])
-  DL_EXT="${DL_EXT=so}"
-  if test $zsh_cv_sys_elf = yes; then
-    case "$host" in
-      mips-sni-sysv4*)
-        # Forcibly set ld to native compiler to avoid obscure GCC problems
-	DLLD="${DLLD=/usr/ccs/bin/cc}"
-	DLLDARG="${LDARG}"
-      ;;
-      * )
-	DLLD="${DLLD=$CC}"
-	DLLDARG="${LDARG}"
-      ;;
-    esac
-  else
-    case "$host" in
-      *openbsd*)
-	case "$host_os" in
-	  openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
-	    DLLD="${DLLD=ld}"
-	  ;;
-	  *)
-	    DLLD="${DLLD=$CC}"
-	  ;;
-	esac
-	DLLDARG="${LDARG}"
-      ;;
-      *darwin*)
-        DLLD="${DLLD=$CC}"
-        DLLDARG=""
-      ;;
-      * )
-	DLLD="${DLLD=ld}"
-	DLLDARG=""
-      ;;
-    esac
-  fi
-  if test -n "$GCC"; then
-    case "$host_os" in
-      darwin*) DLCFLAGS="${DLCFLAGS=-fno-common}" ;;
-      *)       DLCFLAGS="${DLCFLAGS=-fPIC}" ;;
-    esac
-  else
-    case "$host_os" in
-      hpux*)                 DLCFLAGS="${DLCFLAGS=+z}" ;;
-      sunos*)                DLCFLAGS="${DLCFLAGS=-pic}" ;;
-      solaris*|sysv4*|esix*) DLCFLAGS="${DLCFLAGS=-KPIC}" ;;
-    esac
-  fi
-  case "$host_os" in
-    hpux*)        DLLDFLAGS="${DLLDFLAGS=-b}" ;;
-    freebsd*|linux*|irix*|osf*|gnu*) DLLDFLAGS="${DLLDFLAGS=-shared}" ;;
-    sunos*)       DLLDFLAGS="${DLLDFLAGS=-assert nodefinitions}" ;;
-    sysv4*|esix*) DLLDFLAGS="${DLLDFLAGS=-G $ldflags}" ;;
-    netbsd*)      DLLDFLAGS="${DLLDFLAGS=${DLLDARG}-x -shared --whole-archive}" ;;
-    aix*)         DLLDFLAGS="${DLLDFLAGS=-G -bexpall -lc}" ;;
-    solaris*|sysv4*|esix*) DLLDFLAGS="${DLLDFLAGS=-G}" ;;
-    darwin*)      DLLDFLAGS="${DLLDFLAGS=-bundle -flat_namespace -undefined suppress}" ;;
-    openbsd*)
-      if test $zsh_cv_sys_elf = yes; then
-	DLLDFLAGS="${DLLDFLAGS=-shared -fPIC}"
-      else
-	case "$host_os" in
-	  openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
-	   DLLDFLAGS="${DLLDFLAGS=-Bshareable}"
-	  ;;
-	  *)
-	    DLLDFLAGS="${DLLDFLAGS=-shared -fPIC}"
-	  ;;
-	esac
-      fi
-    ;;
-  esac
-  case "$host" in
-    *-hpux*)  EXTRA_LDFLAGS="${EXTRA_LDFLAGS=-Wl,-E}" ;;
-    *-freebsd[3-9]*|*-linux*|gnu*) EXTRA_LDFLAGS="${EXTRA_LDFLAGS=-rdynamic}" ;;
-    *openbsd*)
-       if test $zsh_cv_sys_elf = yes; then
-	 EXTRA_LDFLAGS="${EXTRA_LDFLAGS=-Wl,-E}"
-       fi
-    ;;
-    mips-sni-sysv4)
-      #
-      # unfortunately, we have different compilers
-      # that need different flags
-      #
-      if test -n "$GCC"; then
-        sni_cc_version=GCC
-      else
-        sni_cc_version=`$CC -V 2>&1 | head -1`
-      fi
-      case "$sni_cc_version" in
-        *CDS*|GCC )
-         EXTRA_LDFLAGS="${EXTRA_LDFLAGS=-Wl,-Blargedynsym}"
-       ;;
-       * )
-         EXTRA_LDFLAGS="${EXTRA_LDFLAGS=-LD-Blargedynsym}"
-       ;;
-      esac
-    ;;
-  esac
-  AC_CACHE_CHECK(if your dlsym() needs a leading underscore,
-   zsh_cv_func_dlsym_needs_underscore,
-   [echo failed >conftestval && cat >conftest.c <<EOM
-fred () { }
-EOM
-    AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest.c 1>&AC_FD_CC) &&
-    AC_TRY_COMMAND($DLLD $LDFLAGS $DLLDFLAGS -o conftest.$DL_EXT conftest.o 1>&AC_FD_CC) &&
-    AC_TRY_RUN([
-#include <stdio.h>
-#ifdef HPUXDYNAMIC
-#include <dl.h>
-#define RTLD_LAZY BIND_DEFERRED
-#define RTLD_GLOBAL DYNAMIC_PATH
-
-char *zsh_gl_sym_addr ;
-
-#define dlopen(file,mode) (void *)shl_load((file), (mode), (long) 0)
-#define dlclose(handle) shl_unload((shl_t)(handle))
-#define dlsym(handle,name) (zsh_gl_sym_addr=0,shl_findsym((shl_t *)&(handle),name,TYPE_UNDEFINED,&zsh_gl_sym_addr), (void *)zsh_gl_sym_addr)
-#define dlerror() 0
-#else
-#ifdef HAVE_DLFCN_H
-#include <dlfcn.h>
-#else
-#include <sys/types.h>
-#include <nlist.h>
-#include <link.h>
-#endif
-#endif
-#ifndef RTLD_LAZY
-#define RTLD_LAZY 1
-#endif
-
-extern int fred() ;
-
-main()
-{
-    void * handle ;
-    void * symbol ;
-    FILE *f=fopen("conftestval", "w");
-    if (!f) exit(1);
-    handle = dlopen("./conftest.$DL_EXT", RTLD_LAZY) ;
-    if (handle == NULL) {
-        fprintf (f, "dlopen failed") ;
-            exit(1);
-    }
-    symbol = dlsym(handle, "fred") ;
-    if (symbol == NULL) {
-                /* try putting a leading underscore */
-        symbol = dlsym(handle, "_fred") ;
-        if (symbol == NULL) {
-            fprintf (f, "dlsym failed") ;
-                exit(1);
-                }
-        fprintf (f, "yes") ;
-    }
-    else
-        fprintf (f, "no") ;
-    exit(0);
-}], zsh_cv_func_dlsym_needs_underscore=`cat conftestval`,
-    zsh_cv_func_dlsym_needs_underscore=failed
-    dynamic=no,
-    zsh_cv_func_dlsym_needs_underscore=no)])
-  if test "x$zsh_cv_func_dlsym_needs_underscore" = xyes; then
-    AC_DEFINE(DLSYM_NEEDS_UNDERSCORE)
-  elif test "x$zsh_cv_func_dlsym_needs_underscore" != xno; then
-    dnl Do not cache failed value
-    unset zsh_cv_func_dlsym_needs_underscore
-  fi
-fi
-
-if test "x$dynamic" = xyes; then
-  zsh_SHARED_VARIABLE([environ], [char **])
-  test "$zsh_cv_shared_environ" = yes || dynamic=no
-  if test "$ac_cv_func_tgetent" = yes; then
-    zsh_SHARED_FUNCTION([tgetent])
-  fi
-  if test "$ac_cv_func_tigetstr" = yes; then
-    zsh_SHARED_FUNCTION([tigetstr])
-  fi
-fi
-
-if test "x$dynamic" = xyes; then
-  zsh_SYS_DYNAMIC_CLASH
-  zsh_SYS_DYNAMIC_GLOBAL
-  RTLD_GLOBAL_OK=$zsh_cv_sys_dynamic_rtld_global
-  zsh_SYS_DYNAMIC_EXECSYMS
-  if test "$zsh_cv_sys_dynamic_execsyms" != yes; then
-    L=L
-  fi
-  zsh_SYS_DYNAMIC_STRIP_EXE
-  zsh_SYS_DYNAMIC_STRIP_LIB
-  if $strip_exeldflags && test "$zsh_cv_sys_dynamic_strip_exe" = yes; then
-    EXELDFLAGS="$EXELDFLAGS -s"
-  fi
-  if $strip_libldflags && test "$zsh_cv_sys_dynamic_strip_lib" = yes; then
-    LIBLDFLAGS="$LIBLDFLAGS -s"
-  fi
-  if test "$host_os" = cygwin; then
-    INSTLIB="install.cygwin-lib"
-    UNINSTLIB="uninstall.cygwin-lib"
-  fi
-else
-  $strip_exeldflags && EXELDFLAGS="$EXELDFLAGS -s"
-  $strip_libldflags && LIBLDFLAGS="$LIBLDFLAGS -s"
-  RTLD_GLOBAL_OK=no
-fi
-
-if test "x$dynamic" = xyes; then
-  D=D
-  AC_DEFINE(DYNAMIC)dnl
-else
-  D=N
-fi
-
-if test "x$aixdynamic" = xyes; then
-  E=E
-  AC_DEFINE(AIXDYNAMIC)dnl
-else
-  E=N
-fi
-
-if test "x$zsh_cv_sys_dynamic_clash_ok" = xyes; then
-  SHORTBOOTNAMES=yes
-else
-  SHORTBOOTNAMES=no
-fi
-AC_SUBST(SHORTBOOTNAMES)
-
-AC_SUBST(INSTLIB)dnl
-AC_SUBST(UNINSTLIB)dnl
-
-if test "$host_os" = cygwin; then
-  EXTRAZSHOBJS="$EXTRAZSHOBJS zsh.res.o"
-fi
-
-AC_DEFINE_UNQUOTED(DL_EXT, "$DL_EXT")dnl
-AC_SUBST(D)dnl
-AC_SUBST(DL_EXT)dnl
-AC_SUBST(DLLD)dnl
-AC_SUBST(DLCFLAGS)dnl
-AC_SUBST(DLLDFLAGS)dnl
-AC_SUBST(E)dnl
-AC_SUBST(EXTRA_LDFLAGS)dnl
-AC_SUBST(EXPOPT)dnl
-AC_SUBST(IMPOPT)dnl
-AC_SUBST(L)dnl
-AC_SUBST(LINKMODS)dnl
-AC_SUBST(MOD_EXPORT)dnl
-AC_SUBST(MOD_IMPORT_VARIABLE)dnl
-AC_SUBST(MOD_IMPORT_FUNCTION)dnl
-AC_SUBST(EXTRAZSHOBJS)dnl
-
-# Generate config.modules.  We look for *.mdd files in first and second
-# level subdirectories.  Any existing line not containing 'auto=y' will be
-# retained, provided the .mdd file itself was found.
-CONFIG_MODULES=./config.modules
-cat <<EOM > ${CONFIG_MODULES}.sh
-srcdir="$srcdir"
-dynamic="$dynamic"
-CONFIG_MODULES="${CONFIG_MODULES}"
-EOM
-cat <<\EOM >> ${CONFIG_MODULES}.sh
-echo "creating ${CONFIG_MODULES}"
-userlist=" "
-if test -f ${CONFIG_MODULES}; then
-  userlist="`sed -e '/^#/d' -e '/auto=y/d' -e 's/ .*/ /' -e 's/^name=/ /' \
-        ${CONFIG_MODULES}`"
-  mv ${CONFIG_MODULES} ${CONFIG_MODULES}.old
-fi
-(echo "# Edit this file to change the way modules are loaded."
-echo "# The format is strict; do not break lines or add extra spaces."
-echo "# Run \`make prep' if you change anything here after compiling"
-echo "# (there is no need if you change this just after the first time"
-echo "# you run \`configure')."
-echo "#"
-echo "# Values of \`link' are \`static', \`dynamic' or \`no' to compile the"
-echo "# module into the shell, link it in at run time, or not use it at all."
-echo "# In the final case, no attempt will be made to compile it."
-echo "# Use \`static' or \`no' if you do not have dynamic loading."
-echo "#"
-echo "# Values of \`load' are \`yes' or \`no'; if yes, any builtins etc."
-echo "# provided by the module will be autoloaded by the main shell"
-echo "# (so long as \`link' is not set to \`no')."
-echo "#"
-echo "# Values of \`auto' are \`yes' or \`no'. configure sets the value to"
-echo "# \`yes'.  If you set it by hand to \`no', the line will be retained"
-echo "# when the file is regenerated in future."
-echo "#"
-echo "# Note that the \`functions' entry extends to the end of the line."
-echo "# It should not be quoted; it is used verbatim to find files to install."
-echo "#"
-echo "# You will need to run \`config.status --recheck' if you add a new"
-echo "# module."
-echo "#"
-echo "# You should not change the values for the pseudo-module zsh/main,"
-echo "# which is the main shell (apart from the functions entry)."
-for modfile in `cd ${srcdir}; echo */*.mdd */*/*.mdd`; do
-  name=
-  link=
-  load=
-  functions=
-  . ${srcdir}/$modfile
-  if test x$name != x && test x"$link" != x; then
-    case "$userlist" in
-    *" $name "*) # not autogenerated, keep original
-                grep "^name=$name " ${CONFIG_MODULES}.old
-		;;
-    *) case "$link" in
-	  *\ *) eval "link=\`$link\`"
-	       ;;
-       esac
-       case "${load}" in
-	y*) load=" load=yes"
-	    ;;
-	 *) load=" load=no"
-	    ;;
-       esac
-       if test "x$functions" != x; then
-         # N.B. no additional quotes
-         f=" functions=$functions"
-       else
-         f=
-       fi
-       case "$link" in
-	 static) echo "name=$name modfile=$modfile link=static auto=yes${load}$f"
-	         ;;
-	 dynamic) if test $dynamic != no; then
-		    echo "name=$name modfile=$modfile link=dynamic\
- auto=yes${load}$f"
-		  else
-		    echo "name=$name modfile=$modfile link=no\
- auto=yes load=no$f"
-		  fi
-		  ;;
-	 either) if test $dynamic != no; then
-		   echo "name=$name modfile=$modfile link=dynamic\
- auto=yes${load}$f"
-		 else
-		   echo "name=$name modfile=$modfile link=static\
- auto=yes${load}$f"
-		 fi
-		 ;;
-	      *) echo "name=$name modfile=$modfile link=no auto=yes load=no$f"
-		 ;;
-       esac
-       ;;
-    esac
-  fi
-done) >${CONFIG_MODULES}
-rm -f ${CONFIG_MODULES}.old
-EOM
-AC_OUTPUT_COMMANDS(,[if test -z "\$CONFIG_FILES\$CONFIG_HEADERS"; then
-`cat ./${CONFIG_MODULES}.sh && rm -f ./${CONFIG_MODULES}.sh`
-fi])
-. ./${CONFIG_MODULES}.sh
-
-CLEAN_MK="${srcdir}/Config/clean.mk"
-CONFIG_MK="${srcdir}/Config/config.mk"
-dnl defs.mk is in the build tree, not the source tree
-DEFS_MK="Config/defs.mk"
-VERSION_MK="${srcdir}/Config/version.mk"
-
-AC_SUBST_FILE(CLEAN_MK)dnl
-AC_SUBST_FILE(CONFIG_MK)dnl
-AC_SUBST_FILE(DEFS_MK)dnl
-AC_SUBST_FILE(VERSION_MK)dnl
-
-AC_OUTPUT(Config/defs.mk Makefile Doc/Makefile Etc/Makefile Src/Makefile \
-Test/Makefile,
-[test -z "$CONFIG_HEADERS" || echo > stamp-h])
-
-eval "zshbin1=${bindir}"
-eval "zshbin2=${zshbin1}"
-eval "zshman=${mandir}"
-eval "zshinfo=${infodir}"
-eval "zshfndir=${fndir}"
-
-echo "
-zsh configuration
------------------
-zsh version               : ${VERSION}
-host operating system     : ${host_cpu}-${host_vendor}-${host_os}
-source code location      : ${srcdir}
-compiler                  : ${CC}
-preprocessor flags        : ${CPPFLAGS}
-executable compiler flags : ${CFLAGS}"
-if test "$dynamic" = yes; then
-  echo "\
-module compiler flags     : ${CFLAGS} ${DLCFLAGS}"
-fi
-echo "\
-executable linker flags   : ${LDFLAGS} ${EXELDFLAGS} ${EXTRA_LDFLAGS}"
-if test "$dynamic" = yes; then
-  echo "\
-module linker flags       : ${LDFLAGS} ${LIBLDFLAGS} ${DLLDFLAGS}"
-fi
-echo "\
-library flags             : ${LIBS}
-installation basename     : ${tzsh_name}
-binary install path       : ${zshbin2}
-man page install path     : ${zshman}
-info install path         : ${zshinfo}"
-if test "$zshfndir" != no; then
-  echo "functions install path    : ${zshfndir}"
-fi
-echo "See config.modules for installed modules and functions.
-"