abuild: also look in /lib for .a files for -dev subpackage

abuild.in

@@ -1266,7 +1266,7 @@ default_dev() {
 			usr/share/vala/vapi usr/share/gir-[0-9]*\
 			usr/share/qt/mkspecs			\
 			$(find -name include -type d) 		\
-			$(find usr/ -name '*.[acho]' 2>/dev/null); do
+			$(find lib/ usr/ -name '*.[acho]' 2>/dev/null); do
 		if [ -e "$pkgdir/$i" ] || [ -L "$pkgdir/$i" ]; then
 			d="$subpkgdir/${i%/*}"	# dirname $i
 			mkdir -p "$d"