image.bbclass: add a proper error message if hook script fails

(From OE-Core rev: 5e737d3c6e6546c1368e804f4c45ab25d8791ea3)

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/image.bbclass

@@ -10,6 +10,7 @@ inherit gzipnative
 
 LICENSE = "MIT"
 PACKAGES = ""
+DEPENDS += "qemuwrapper-cross"
 RDEPENDS += "${IMAGE_INSTALL} ${LINGUAS_INSTALL} ${NORMAL_FEATURE_INSTALL} ${ROOTFS_BOOTSTRAP_INSTALL}"
 RRECOMMENDS += "${NORMAL_FEATURE_INSTALL_OPTIONAL}"
 
@@ -197,6 +198,9 @@ run_intercept_scriptlets () {
 			echo "> Executing $script"
 			chmod +x $script
 			./$script
+			if [ $? -ne 0 ]; then
+				echo "ERROR: intercept script \"$script\" failed!"
+			fi
 		done
 	fi
 }