Check for -Wno-unused-but-set-variable gcc support

[zfs.git] / config / kernel.m4

diff --git a/config/kernel.m4 b/config/kernel.m4
index 015192b..0ccae33 100644 (file)
--- a/config/kernel.m4
+++ b/config/kernel.m4
@@ -46,7 +46,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
 
        dnl # -Wall -fno-strict-aliasing -Wstrict-prototypes and other
        dnl # compiler options are added by the kernel build system.
-       KERNELCPPFLAGS="$KERNELCPPFLAGS -Wno-unused-but-set-variable"
+       KERNELCPPFLAGS="$KERNELCPPFLAGS $NO_UNUSED_BUT_SET_VARIABLE"
        KERNELCPPFLAGS="$KERNELCPPFLAGS -DHAVE_SPL -D_KERNEL"
        KERNELCPPFLAGS="$KERNELCPPFLAGS -DTEXT_DOMAIN=\\\"zfs-linux-kernel\\\""