LU-3953 build: fix AC_LANG_SOURCE autoconf warnings

This fixes several places where the autoconf rules generate the
following warning:

configure.ac:23: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE
call detected in body

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Change-Id: Ib6a54310853b1e9aa34155e8bec9aae410278f25
Reviewed-on: http://review.whamcloud.com/10158
Tested-by: Jenkins
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>

diff --git a/config/lustre-build-linux.m4 b/config/lustre-build-linux.m4
index 8962587..ee009a4 100644 (file)
--- a/config/lustre-build-linux.m4
+++ b/config/lustre-build-linux.m4
@@ -538,7 +538,7 @@ $2
 # $5 - do 'no'
 #
 AC_DEFUN([LB_LINUX_COMPILE_IFELSE],
-[m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
+[m4_ifvaln([$1], [AC_LANG_CONFTEST([AC_LANG_SOURCE([$1])])])dnl
 rm -f build/conftest.o build/conftest.mod.c build/conftest.ko
 SUBARCH=$(echo $target_cpu | sed -e 's/powerpc64/powerpc/' -e 's/x86_64/x86/' -e 's/i.86/x86/' -e 's/k1om/x86/')
 AS_IF([AC_TRY_COMMAND(cp conftest.c build && make -d [$2] ${LD:+"LD=$LD"} CC="$CC" -f $PWD/build/Makefile LUSTRE_LINUX_CONFIG=$LINUX_CONFIG LINUXINCLUDE="$EXTRA_OFED_INCLUDE -I$LINUX/arch/$SUBARCH/include -I$LINUX/arch/$SUBARCH/include/generated -Iinclude -I$LINUX/include -Iinclude2 -I$LINUX/include/uapi -I$LINUX/include/generated -I$LINUX/arch/$SUBARCH/include/uapi -Iarch/$SUBARCH/include/generated/uapi -I$LINUX/include/uapi -Iinclude/generated/uapi ${SPL_OBJ:+-include $SPL_OBJ/spl_config.h} ${ZFS_OBJ:+-include $ZFS_OBJ/zfs_config.h} ${SPL:+-I$SPL -I$SPL/include } ${ZFS:+-I$ZFS -I$ZFS/include} -include $CONFIG_INCLUDE" -o tmp_include_depends -o scripts -o include/config/MARKER -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $CROSS_VARS $MODULE_TARGET=$PWD/build) >/dev/null && AC_TRY_COMMAND([$3])],

diff --git a/libcfs/autoconf/lustre-libcfs.m4 b/libcfs/autoconf/lustre-libcfs.m4
index a73943b..dba971d 100644 (file)
--- a/libcfs/autoconf/lustre-libcfs.m4
+++ b/libcfs/autoconf/lustre-libcfs.m4
@@ -422,7 +422,7 @@ tmp_flags="$CFLAGS"
 CFLAGS="$CFLAGS -Werror"
 AC_CACHE_CHECK([if userspace '__u64' is 'long long' type],
 lb_cv_compile_userspace_u64_long_long, [
-AC_COMPILE_IFELSE([
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([
        #include <stdio.h>
        #include <linux/types.h>
        #include <linux/stddef.h>
@@ -433,7 +433,7 @@ AC_COMPILE_IFELSE([
                data2 = data1;
                return 0;
        }
-],
+])],
        [lb_cv_compile_userspace_u64_long_long="yes"],
        [lb_cv_compile_userspace_u64_long_long="no"])
 ])