Use `patsubst' instead of `subst' in cleaning rule to avoid problems with filenames which contain `lo' in its name (e.g. ahglobal.lo).
diff --git a/builds/unix/unix.in b/builds/unix/unix.in
index 9aeea24..d5a0269 100644
--- a/builds/unix/unix.in
+++ b/builds/unix/unix.in
@@ -186,7 +186,7 @@ ifdef BUILD_FREETYPE
#
clean_freetype_unix:
-$(DELETE) $(BASE_OBJECTS) $(OBJ_M) $(OBJ_S)
- -$(DELETE) $(subst $O,$(SO),$(BASE_OBJECTS) $(OBJ_M) $(OBJ_S)) \
+ -$(DELETE) $(patsubst %.$O,%.$(SO),$(BASE_OBJECTS) $(OBJ_M) $(OBJ_S)) \
$(CLEAN)
distclean_freetype_unix: clean_freetype_unix