diff --git a/src/cf/linux-test1.m4 b/src/cf/linux-test1.m4
index 94bd0692ce..6695385b89 100644
--- a/src/cf/linux-test1.m4
+++ b/src/cf/linux-test1.m4
@@ -199,7 +199,10 @@ AC_DEFUN([AC_CHECK_LINUX_OPERATION],
   AC_CACHE_CHECK([operation $2 in $1], [ac_linux_operation],
     [save_CPPFLAGS="$CPPFLAGS"
      CPPFLAGS="$CPPFLAGS -Werror"
-     AC_TRY_KBUILD([$4], [struct $1 ops; $5 op($6) { return ($5)0; }; ops.$2 = op;],
+     AC_TRY_KBUILD(
+      [$4
+       $5 op($6) { return ($5)0; };],
+      [struct $1 ops;  ops.$2 = op;],
 		   AS_VAR_SET([ac_linux_operation], [yes]),
 		   AS_VAR_SET([ac_linux_operation], [no]))
      CPPFLAGS="$save_CPPFLAGS"
diff --git a/src/cf/linux-test4.m4 b/src/cf/linux-test4.m4
index 0d6b645f41..3f7f4d5fcd 100644
--- a/src/cf/linux-test4.m4
+++ b/src/cf/linux-test4.m4
@@ -492,8 +492,9 @@ AC_DEFUN([LINUX_KMEM_CACHE_CREATE_TAKES_DTOR], [
 AC_DEFUN([LINUX_KMEM_CACHE_CREATE_CTOR_TAKES_VOID],[
   AC_CHECK_LINUX_BUILD([whether kmem_cache_create constructor takes a void pointer],
 			[ac_cv_linux_kmem_cache_create_ctor_takes_void],
-			[#include <linux/slab.h>],
-			[void _ctor(void *v) { }; kmem_cache_create(NULL, 0, 0, 0, _ctor);],
+			[#include <linux/slab.h>
+			 void _ctor(void *v) { };],
+			[kmem_cache_create(NULL, 0, 0, 0, _ctor);],
 			[KMEM_CACHE_CTOR_TAKES_VOID],
 			[define if kmem_cache_create constructor takes a single void ptr],
 			[-Werror])