[PATCH 1/2] libosmocore: add missing AC_LANG_SOURCE for current autoconf

[Alexander Huemer]

autoconf >=2.68 demands the body of an AC_COMPILE_IFELSE to be wrapped in
an AC_LANG_SOURCE macro, otherwise outputs annoying warnings on the
invocation of `autoreconf -i`. this patch follows that demand.
---
 configure.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/configure.in b/configure.in
index 2e22bb2..b923a21 100644
--- a/configure.in
+++ b/configure.in
@@ -24,7 +24,7 @@ AC_CHECK_HEADERS(execinfo.h sys/select.h sys/socket.h syslog.h ctype.h)
 saved_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -fvisibility=hidden "
 AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
-AC_COMPILE_IFELSE([char foo;],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])],
       [ AC_MSG_RESULT([yes])
         SYMBOL_VISIBILITY="-fvisibility=hidden"],
         AC_MSG_RESULT([no]))
-- 
1.7.5.rc3