upload-pack: implement ref-in-want

diff --git a/ewah/ewok.h b/ewah/ewok.h
index dc43d05b644af07a86bb64dbc6790ea0897d2f43..357fd93c84edbe79f9bcb10e2947ed935ac9f0df 100644 (file)
--- a/ewah/ewok.h
+++ b/ewah/ewok.h
@@ -91,7 +91,7 @@ int ewah_serialize_native(struct ewah_bitmap *self, int fd);
 int ewah_serialize_strbuf(struct ewah_bitmap *self, struct strbuf *);
 
 int ewah_deserialize(struct ewah_bitmap *self, int fd);
-int ewah_read_mmap(struct ewah_bitmap *self, const void *map, size_t len);
+ssize_t ewah_read_mmap(struct ewah_bitmap *self, const void *map, size_t len);
 
 uint32_t ewah_checksum(struct ewah_bitmap *self);