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Diffstat (limited to 'Src/builtin.c')
| -rw-r--r-- | Src/builtin.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Src/builtin.c b/Src/builtin.c index da453000c..3b82c9e7f 100644 --- a/Src/builtin.c +++ b/Src/builtin.c @@ -2266,6 +2266,10 @@ typeset_single(char *cname, char *pname, Param pm, UNUSED(int func), zerrnam(cname, "%s: restricted", pname); return pm; } + if (pm->node.flags & PM_SINGLE) { + zerrnam(cname, "%s: can only have a single instance", pname); + return pm; + } /* * For specials, we keep the same struct but zero everything. * Maybe it would be easier to create a new struct but copy |