[oe] [meta-oe][PATCH v2] efivar: make CC_FOR_BUILD value complete

[mingli.yu at windriver.com]

From: Mingli Yu <Mingli.Yu at windriver.com>

Update CC_FOR_BUILD=${BUILD_CC} to
CC_FOR_BUILD="${BUILD_CC}" to guarantee
the BUILD_CC value passed to CC_FOR_BUILD
completely to avoid below build failure
when ccache enabled:
| NOTE: make -j 48 -C src makeguids CC_FOR_BUILD=ccache gcc
| make: Entering directory '/mybuild/tmp-glibc/work/x86_64-linux/efivar-native/0.36-r0/git/src'
| ccache -isystem/mybuild/tmp-glibc/work/x86_64-linux/efivar-native/0.36-r0/recipe-sysroot-native/usr/include -O2 -pipe ... -DEFIVAR_BUILD_ENVIRONMENT -o makeguids makeguids.c guid.c -ldl
| ccache: invalid option -- 'i'

Signed-off-by: Mingli Yu <Mingli.Yu at windriver.com>
---
 meta-oe/recipes-bsp/efivar/efivar_0.36.bb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta-oe/recipes-bsp/efivar/efivar_0.36.bb b/meta-oe/recipes-bsp/efivar/efivar_0.36.bb
index dfb46c2..20588ee 100644
--- a/meta-oe/recipes-bsp/efivar/efivar_0.36.bb
+++ b/meta-oe/recipes-bsp/efivar/efivar_0.36.bb
@@ -29,7 +29,7 @@ do_compile_prepend() {
 }
 
 do_compile_class-native() {
-    oe_runmake -C src makeguids CC_FOR_BUILD=${BUILD_CC}
+    oe_runmake -C src makeguids CC_FOR_BUILD="${BUILD_CC}"
 }
 
 do_install() {
-- 
2.7.4