utils.bbclass: Tweak create_wrapper

Currently the full path is specified to exec however this may incorporate a
build path which in the nativesdk case, is not transformed to a target system
path. This leads to failures due to incorrect paths.

This patch ensures the full build path is not encoded into the wrapper script.

(From OE-Core rev: 4569d7403638e4c1f637e3a6adb8dea620dc8543)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/utils.bbclass

@@ -282,12 +282,12 @@ create_wrapper () {
 	echo "Generating wrapper script for $cmd"
 
 	mv $cmd $cmd.real
-	cmdname=`basename $cmd`.real
+	cmdname=`basename $cmd`
 	cat <<END >$cmd
 #!/bin/bash
 realpath=\`readlink -fn \$0\`
 export $@
-exec -a $cmd \`dirname \$realpath\`/$cmdname "\$@"
+exec -a \`dirname \$realpath\`/$cmdname \`dirname \$realpath\`/$cmdname.real "\$@"
 END
 	chmod +x $cmd
 }