[OE-core] [PATCH 2/2] kernel: check for empty .config file after merge_config.sh

[Flavio Suligoi]

Sometimes, for example in case of missed dependecies, after the
execution of:

merge_config.sh

the resulting file ".config" can be empty.
This is the reason why is necessary test it and, in case, display
the "Could not configure ..." error message.

Signed-off-by: Flavio Suligoi <f.suligoi at asem.it>
---
 meta/classes/kernel-yocto.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/classes/kernel-yocto.bbclass b/meta/classes/kernel-yocto.bbclass
index 243f8d6..895966b 100644
--- a/meta/classes/kernel-yocto.bbclass
+++ b/meta/classes/kernel-yocto.bbclass
@@ -331,7 +331,7 @@ do_kernel_configme() {
 	fi
 
 	CFLAGS="${CFLAGS} ${TOOLCHAIN_OPTIONS}"	HOSTCC="${BUILD_CC} ${BUILD_CFLAGS} ${BUILD_LDFLAGS}" HOSTCPP="${BUILD_CPP}" CC="${KERNEL_CC}" ARCH=${ARCH} merge_config.sh -O ${B} ${config_flags} ${configs} > ${meta_dir}/cfg/merge_config_build.log 2> ${meta_dir}/cfg/merge_config_build-errors.log
-	if [ $? -ne 0 ]; then
+	if [ $? -ne 0 ] || [ ! -s ${B}/.config ]; then
 		bbfatal_log "Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
 	fi
 
-- 
2.7.4