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libosmocore: add missing AC_LANG_SOURCE for current autoconf 

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.
This commit is contained in:
Alexander Huemer 2011-05-24 15:16:13 +02:00 committed by Harald Welte
parent b5503136fa
commit 3d79f53284
1 changed files with 1 additions and 1 deletions
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2
configure.in
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@ -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]))