real_path: set errno when max number of symlinks is exceeded

diff --git a/sha1_file.c b/sha1_file.c
index 5457314e6aaaf1a30d33f68c8e1005f8db584564..6a03cc39342cde47adee9664786fcf3af93c7f0d 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -291,12 +291,12 @@ static int link_alt_odb_entry(const char *entry, const char *relative_base,
        struct strbuf pathbuf = STRBUF_INIT;
 
        if (!is_absolute_path(entry) && relative_base) {
-               strbuf_addstr(&pathbuf, real_path(relative_base));
+               strbuf_realpath(&pathbuf, relative_base, 1);
                strbuf_addch(&pathbuf, '/');
        }
        strbuf_addstr(&pathbuf, entry);
 
-       if (strbuf_normalize_path(&pathbuf) < 0) {
+       if (strbuf_normalize_path(&pathbuf) < 0 && relative_base) {
                error("unable to normalize alternate object path: %s",
                      pathbuf.buf);
                strbuf_release(&pathbuf);