From af927e0be691ca85f10ef79acc4d5f7537e288b9 Mon Sep 17 00:00:00 2001
From: Krisztian Litkey <kli@iki.fi>
Date: Fri, 27 Sep 2013 11:04:30 +0300
Subject: [PATCH] build-sys: allow passing extra flags to the module build
 process.

---
 configure.ac     | 8 ++++++++
 kmod/Makefile.am | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 73dc344..1fccc8a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -62,6 +62,14 @@ AC_FUNC_REALLOC
 AC_FUNC_STRNLEN
 AC_CHECK_FUNCS([ftruncate gettimeofday isascii memset munmap pow select socket strchr strdup strerror strstr strtol])
 
+# Check if any flags need to be passed on to the kernel module build.
+AC_ARG_ENABLE(kmod-flags,
+              [  --enable-kmod-flags      pass the given flags to the module build process],
+	      [IGB_KMOD_BUILD_FLAGS="$enableval"], [])
+
+AC_SUBST(IGB_KMOD_BUILD_FLAGS)
+
+
 AC_CONFIG_FILES([Makefile
                  kmod/Makefile
                  igb.pc])
diff --git a/kmod/Makefile.am b/kmod/Makefile.am
index d27c626..3151f1f 100644
--- a/kmod/Makefile.am
+++ b/kmod/Makefile.am
@@ -1,5 +1,5 @@
 all:
-	$(MAKE) -C igb
+	$(MAKE) V=1 -C igb $(IGB_KMOD_BUILD_FLAGS)
 
 install:
 	$(MAKE) -C igb install
-- 
2.7.4