mdadm: Make custom CC definition conditional

By hardcoding CC's definition in the Makefile, all the gcc parameters
set by tune settings are lost. Causing compile failure with x32 toolchain

As the bitbake defined CC is good, there is no need to redfine CC in the
make file, hence making the CC definition in the Makefile conditional.

This fixes bug: [YOCTO #1414]

(From OE-Core rev: c877ec8ff1dfbf0123f94711f44cea043815a9c1)

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 26 insertions, 2 deletions

diff --git a/meta/recipes-extended/mdadm/files/mdadm-3.2.2_fix_for_x32.patch b/meta/recipes-extended/mdadm/files/mdadm-3.2.2_fix_for_x32.patch
new file mode 100644
index 0000000000..79ba2cf9e9
--- /dev/null
+++ b/meta/recipes-extended/mdadm/files/mdadm-3.2.2_fix_for_x32.patch
@@ -0,0 +1,24 @@
+UpstreamStatus: pending
+
+By hardcoding CC's definition in the Makefile, all the gcc parameters 
+set by tune settings are lost. Causing compile failure with x32 toolchain
+
+As the bitbake defined CC is good, there is no need to redfine CC in the 
+make file, hence making the CC definition in the Makefile conditional.
+
+Signed-Off-By: Nitin A Kamble <nitin.a.kamble@intel.com> 2011/12/07
+
+Index: mdadm-3.2.2/Makefile
+===================================================================
+--- mdadm-3.2.2.orig/Makefile
++++ mdadm-3.2.2/Makefile
+@@ -40,7 +40,8 @@ KLIBC=/home/src/klibc/klibc-0.77
+ 
+ KLIBC_GCC = gcc -nostdinc -iwithprefix include -I$(KLIBC)/klibc/include -I$(KLIBC)/linux/include -I$(KLIBC)/klibc/arch/i386/include -I$(KLIBC)/klibc/include/bits32
+ 
+-CC = $(CROSS_COMPILE)gcc
++CC ?= $(CROSS_COMPILE)gcc
++
+ CXFLAGS = -ggdb
+ CWFLAGS = -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
+ ifdef WARN_UNUSED
diff --git a/meta/recipes-extended/mdadm/mdadm_3.2.2.bb b/meta/recipes-extended/mdadm/mdadm_3.2.2.bb
index 97878edb68..02109e36ac 100644
--- a/meta/recipes-extended/mdadm/mdadm_3.2.2.bb
+++ b/meta/recipes-extended/mdadm/mdadm_3.2.2.bb
@@ -8,10 +8,11 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=0636e73ff0215e8d672dc4c32c317bb3 \
                     file://mdmon.c;beginline=4;endline=18;md5=af7d8444d9c4d3e5c7caac0d9d34039d \
                     file://mdadm.h;beglinlne=4;endline=22;md5=462bc9936ac0d3da110191a3f9994161"
 
-PR = "r2"
+PR = "r3"
 
 SRC_URI = "${KERNELORG_MIRROR}/linux/utils/raid/mdadm/${BPN}-${PV}.tar.bz2 \
             file://0001-mdadm-fix-build-failures-ppc64.patch \
+            file://mdadm-3.2.2_fix_for_x32.patch \
           "
 
 SRC_URI[md5sum] = "12ee2fbf3beddb60601fb7a4c4905651"
@@ -22,7 +23,6 @@ CFLAGS += "-fno-strict-aliasing"
 inherit autotools
 
 do_compile() {
-        export CROSS_COMPILE="${TARGET_PREFIX}"
         oe_runmake
 }