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-rw-r--r--awkgram.y18
1 files changed, 16 insertions, 2 deletions
diff --git a/awkgram.y b/awkgram.y
index 2307c362..2be4d37c 100644
--- a/awkgram.y
+++ b/awkgram.y
@@ -5630,13 +5630,26 @@ lookup_builtin(const char *name)
{
int mid = check_special(name);
- if (mid == -1 || tokentab[mid].class != LEX_BUILTIN)
+ if (mid == -1)
return NULL;
+
+ switch (tokentab[mid].class) {
+ case LEX_BUILTIN:
+ case LEX_LENGTH:
+ break;
+ default:
+ return NULL;
+ }
+
#ifdef HAVE_MPFR
if (do_mpfr)
return tokentab[mid].ptr2;
#endif
+ /* And another special case... */
+ if (tokentab[mid].value == Op_sub_builtin)
+ return (builtin_func_t) do_sub;
+
return tokentab[mid].ptr;
}
@@ -5649,7 +5662,8 @@ install_builtins(void)
j = sizeof(tokentab) / sizeof(tokentab[0]);
for (i = 0; i < j; i++) {
- if ( tokentab[i].class == LEX_BUILTIN
+ if ( (tokentab[i].class == LEX_BUILTIN
+ || tokentab[i].class == LEX_LENGTH)
&& (tokentab[i].flags & DEBUG_USE) == 0) {
(void) install_symbol(tokentab[i].operator, Node_builtin_func);
}