Calling access(p, m) with p == NULL is not specified, so don't do that.  On
GNU/Hurd systems doing so will result in a SIGSEGV.

Signed-off-by: Thomas Schwinge <tschwinge@gnu.org>
---
 builtin-add.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/builtin-add.c b/builtin-add.c
index 7345479..de5c108 100644
--- a/builtin-add.c
+++ b/builtin-add.c
@@ -60,7 +60,7 @@ static void fill_directory(struct dir_struct *dir, const char **pathspec,
 		path = git_path("info/exclude");
 		if (!access(path, R_OK))
 			add_excludes_from_file(dir, path);
-		if (!access(excludes_file, R_OK))
+		if (excludes_file != NULL && !access(excludes_file, R_OK))
 			add_excludes_from_file(dir, excludes_file);
 	}
 
-- 
1.5.3.rc3.26.g6c58-dirty

-
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