unlink: fix m4 detection
authorEric Blake <ebb9@byu.net>
Tue, 8 Dec 2009 00:15:07 +0000 (17:15 -0700)
committerEric Blake <ebb9@byu.net>
Tue, 8 Dec 2009 03:58:17 +0000 (20:58 -0700)
commit67ac31ed5b8a602032d034bd91022ba329e6485f
treee229214a25f6f655ff0d8fd470d6d5b7e3335a48
parenta1afba1b2122388e9a120b6a1f011367e6db1518
unlink: fix m4 detection

The m4 test failed under -Werror due to implicit declaration.

* m4/unlink.m4 (gl_FUNC_UNLINK): Include correct header.

Signed-off-by: Eric Blake <ebb9@byu.net>
ChangeLog
m4/unlink.m4