[PATCH] Make core.sharedRepository work under cygwin 1.7

[PATCH] Make core.sharedRepository work under cygwin 1.7

[Torsten Bögershausen]

When core.sharedRepository is used, set_shared_perm() in path.c
needs lstat() to return the correct POSIX permissions.

The default for cygwin is core.ignoreCygwinFSTricks = false, which
means that a simplified and fast implementation of lstat() is used.

Especially the file permission bits are wrong in cygwin_lstat_fn():
The read-only attribute of a file is used to calculate
the permissions, resulting in either rw-r--r-- or r--r--r--

Use a compile switch IGNORECYGWINFSTRICKS to disable the usage
of cygwin_lstat_fn() only in path.c

Signed-off-by: Torsten Bögershausen <tboegi@web.de>
---
 compat/cygwin.h | 2 ++
 path.c          | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/compat/cygwin.h b/compat/cygwin.h
index a3229f5..984efbe 100644
--- a/compat/cygwin.h
+++ b/compat/cygwin.h
@@ -5,5 +5,7 @@ typedef int (*stat_fn_t)(const char*, struct stat*);
 extern stat_fn_t cygwin_stat_fn;
 extern stat_fn_t cygwin_lstat_fn;
 
+#ifndef IGNORECYGWINFSTRICKS
 #define stat(path, buf) (*cygwin_stat_fn)(path, buf)
 #define lstat(path, buf) (*cygwin_lstat_fn)(path, buf)
+#endif
diff --git a/path.c b/path.c
index d3d3f8b..0acfabf 100644
--- a/path.c
+++ b/path.c
@@ -10,6 +10,8 @@
  *
  * which is what it's designed for.
  */
+#define IGNORECYGWINFSTRICKS
+
 #include "cache.h"
 #include "strbuf.h"
 #include "string-list.h"
-- 
1.8.1.3