[RFC & PATCH] Solaris 8: ENOSYS when mkdir applied to automount.

[Jason Riedy <ejr@EECS.Berkeley.EDU>]

I guess our home directories recently were changed from symlinks
to autmounts.  Solaris 8's mkdir(2) returns ENOSYS when applied
to these, breaking safe_create_leading_directories.  I don't
know if ENOSYS is available everywhere, or if this odd behavior
is appropriate everywhere.

This works for me, but should I wrap mkdir for bizarre behavior
by adding a compat/gitmkdir.c?

Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>

---

 sha1_file.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

4f388cf48271ec1547817a407ef1afe432cd59d4
diff --git a/sha1_file.c b/sha1_file.c
index 20f6419..65407e2 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -83,7 +83,15 @@ int safe_create_leading_directories(char
 			break;
 		*pos = 0;
 		if (mkdir(path, 0777) < 0) {
+#if !defined(ENOSYS)
 			if (errno != EEXIST) {
+#else
+			if (errno != EEXIST && errno != ENOSYS) {
+#endif
+/* 
+ * Solaris 8 appears to return ENOSYS when mkdir is applied 
+ * to an automount.
+ */
 				*pos = '/';
 				return -1;
 			}
-- 
1.1.6.g7159