commit 8cdf04b3b237b97163652f52b32ecb17679e2a27
author Eric Blake <ebb9@byu.net> Thu Oct 18 10:45:16 2007 -0600
committer Eric Blake <ebb9@byu.net> Thu Oct 18 10:45:16 2007 -0600
tree a4afaae680997183f9b3ad3767467bdb3252eafc
parent 394083c7c6df499eedb10173ac838aced7d00a34

Fix 'm4 -F file -t undefined'.

* src/freeze.c (produce_symbol_dump): Skip trace placeholders.
* src/freeze.c (dump_symbol_CB): Also skip void symbols.
* tests/freeze.at (reloading unknown builtin): Test for this bug.
* m4/m4module.h (m4_symtab_apply): Add parameter.
* m4/symtab.c (m4_symtab_apply): Ignore trace placeholders when
requested.
(m4_symtab_delete, symtab_dump): Adjust callers.
* modules/m4.c (m4_dump_symbols): Likewise.

Signed-off-by: Eric Blake <ebb9@byu.net>