LU-3953 build: fix AC_LANG_SOURCE autoconf warnings

[fs/lustre-release.git] / libcfs / autoconf / lustre-libcfs.m4

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"])
 ])