diff options
Diffstat (limited to 'Src/params.c')
| -rw-r--r-- | Src/params.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Src/params.c b/Src/params.c index e8a90104c..d53b6ca7e 100644 --- a/Src/params.c +++ b/Src/params.c @@ -874,10 +874,14 @@ createparam(char *name, int flags) DPUTS(oldpm && oldpm->level > locallevel, "BUG: old local parameter not deleted"); if (oldpm && (oldpm->level == locallevel || !(flags & PM_LOCAL))) { + if (isset(POSIXBUILTINS) && (oldpm->node.flags & PM_READONLY)) { + zerr("read-only variable: %s", name); + return NULL; + } if (!(oldpm->node.flags & PM_UNSET) || (oldpm->node.flags & PM_SPECIAL)) { oldpm->node.flags &= ~PM_UNSET; if ((oldpm->node.flags & PM_SPECIAL) && oldpm->ename) { - Param altpm = + Param altpm = (Param) paramtab->getnode(paramtab, oldpm->ename); if (altpm) altpm->node.flags &= ~PM_UNSET; |