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-rw-r--r--configure.ac2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 220f353c3..e8f434274 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1949,7 +1949,7 @@ AH_TEMPLATE([PATH_DEV_FD],
[Define to the path of the /dev/fd filesystem.])
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
- (exec 3<&0; test -e $zsh_cv_sys_path_dev_fd/3;) && break
+ test x`echo ok|(cat $zsh_cv_sys_path_dev_fd/3 3<&0 2>/dev/null;)` = xok && break
done])
if test x$zsh_cv_sys_path_dev_fd != xno; then
AC_DEFINE_UNQUOTED(PATH_DEV_FD, "$zsh_cv_sys_path_dev_fd")