@@ -92,11 +92,11 @@
 
 	source "$datadir/objfw/packages/$1"
 }
 
 add_package_flags() {
-	while test -n "$1"; do
+	while test x"$1" != "x"; do
 		case "$1" in
 			--package)
 				shift
 				include_package "$1"
 				;;
@@ -105,11 +105,11 @@
 	done
 }
 
 add_package_flags "$@"
 
-while test -n "$1"; do
+while test x"$1" != "x"; do
 	case "$1" in
 		--all)
 			printf "%s %s %s " "$CFLAGS" "$CPPFLAGS" "$CXXFLAGS"
 			printf "%s %s " "$OBJCFLAGS" "$LDFLAGS"
 			printf "%s %s " "$LDFLAGS_REEXPORT" "$LDFLAGS_RPATH"