autoconf: Checks for some library functions.

diff --git a/tag.c b/tag.c
index 5f70a5b8104078b139d2ec87b7aebc6791b4d253..74d0dabe5d8c1f06a3f67475368c34e3b4046456 100644 (file)
--- a/tag.c
+++ b/tag.c
@@ -47,10 +47,10 @@ int parse_tag_buffer(struct tag *item, void *data, unsigned long size)
 
        if (size < 64)
                return -1;
-       if (memcmp("object ", data, 7) || get_sha1_hex(data + 7, object))
+       if (memcmp("object ", data, 7) || get_sha1_hex((char *) data + 7, object))
                return -1;
 
-       type_line = data + 48;
+       type_line = (char *) data + 48;
        if (memcmp("\ntype ", type_line-1, 6))
                return -1;