diff --git a/.gitignore b/.gitignore
index 27e5aeb8a078a1bac61ce207e56338881ae57a07..bd49cd4627a786d6dbcd7f0d17f0fddc2add7014 100644
--- a/.gitignore
+++ b/.gitignore
@@ -159,7 +159,7 @@ common-cmds.h
 *.deb
 git-core.spec
 *.exe
-*.[ao]
+*.[aos]
 *.py[co]
 config.mak
 autom4te.cache
diff --git a/Makefile b/Makefile
index 0f7595552d6b13c3dda425ab4240cfb75ca4bea7..30a405292215acc4a4520e87a8c10bd7a9284a98 100644
--- a/Makefile
+++ b/Makefile
@@ -845,6 +845,8 @@ git$X git.spec \
 
 %.o: %.c GIT-CFLAGS
 	$(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) $<
+%.s: %.c GIT-CFLAGS
+	$(QUIET_CC)$(CC) -S $(ALL_CFLAGS) $<
 %.o: %.S
 	$(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) $<