mingw: avoid redefining S_* constants
When compiling with MSys2's compiler, these constants are already defined.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/compat/mingw.h b/compat/mingw.h
index 10e2e4c..093a977 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -26,14 +26,18 @@
#define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
#define S_ISSOCK(x) 0
+#ifndef S_IRWXG
#define S_IRGRP 0
#define S_IWGRP 0
#define S_IXGRP 0
#define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
+#endif
+#ifndef S_IRWXO
#define S_IROTH 0
#define S_IWOTH 0
#define S_IXOTH 0
#define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
+#endif
#define S_ISUID 0004000
#define S_ISGID 0002000
