4c0e23155dbd417bc6ede1d03107e8870aca60fc - m4

commit: 4c0e23155dbd417bc6ede1d03107e8870aca60fc
[log]
author: Eric Blake <eblake@redhat.com>
Tue Sep 04 16:53:19 2012 -0600
committer: Gary V. Vaughan <gary@gnu.org>
Wed Sep 18 20:53:32 2013 +0700
tree: 4eb924a7c9be5518bbca12fea364a543732bed57
parent: 2bacbb871b9dd05362405cf2ceedb32a0f6d14e2 [diff]

build: mark several pure functions

Found by using gcc 4.7.0's -Wsuggest-attribute=pure.
* m4/system_.h (M4_GNUC_PURE): New macro.
* m4/builtin.c (m4_builtin_find_by_name, m4_builtin_find_by_func):
Mark pure.

Signed-off-by: Eric Blake <eblake@redhat.com>

m4/builtin.c[diff]
m4/system_.h[diff]

2 files changed