fix >4GiB source delta assertion failure

diff --git a/git-compat-util.h b/git-compat-util.h
index 02a73eeb667e798fca29de25fed6b0b2900f6912..fe845ae639767dc8f56a9196a7faefb468737bba 100644 (file)
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -388,6 +388,8 @@ extern int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1);
 
 static inline size_t xsize_t(off_t len)
 {
+       if (len > (size_t) len)
+               die("Cannot handle files this big");
        return (size_t)len;
 }