Changeset 2cbe7c3 for configure.ac

Timestamp:

Mar 19, 2011, 11:19:29 PM (14 years ago)

Author:

Anders Kaseorg <andersk@mit.edu>

Branches:

master, release-1.10, release-1.8, release-1.9

Children:

4dde585

Parents:

41f0cf3

git-author:

Anders Kaseorg <andersk@mit.edu> (03/19/11 22:28:30)

git-committer:

Anders Kaseorg <andersk@mit.edu> (03/19/11 23:19:29)

Message:

Protect memrchr prototype by !HAVE_DECL_MEMCHR instead of !HAVE_MEMCHR

This fixes
viewwin.c:393:7: warning: implicit declaration of function ‘memrchr’
on platforms where PERL_CFLAGS doesn’t contain -D_GNU_SOURCE.

!HAVE_MEMRCHR means that memrchr is undefined at link time, so we need
to provide our own implementation; but !HAVE_DECL_MEMRCHR means that
memrchr is not declared at compile time, so we need to provide our own
prototype.

http://lists.gnu.org/archive/html/bug-autoconf/2008-12/msg00037.html

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

File:

• configure.ac (modified) (1 diff)

configure.ac

@@ -159 +159 @@
 
 AC_CONFIG_LIBOBJ_DIR([compat])
+AC_CHECK_DECLS([memrchr])
 AC_REPLACE_FUNCS([memrchr])