Index: utils/objfw-config.in
==================================================================
--- utils/objfw-config.in
+++ utils/objfw-config.in
@@ -66,11 +66,11 @@
 	exit $1
 }
 
 test -z "$1" && show_help 1
 
-while test ! -z "$1"; do
+while test -n "$1"; do
 	case "$1" in
 		--all)
 			printf "%s %s %s " "$CFLAGS" "$CPPFLAGS" "$CXXFLAGS"
 			printf "%s %s " "$OBJCFLAGS" "$LDFLAGS"
 			printf "%s %s " "$LDFLAGS_REEXPORT" "$LDFLAGS_RPATH"
@@ -166,9 +166,9 @@
 			exit 1
 			;;
 	esac
 	shift
 
-	test ! -z "$1" && printf " "
+	test -n "$1" && printf " "
 done
 
 echo