From 8217e459b13d79c1114828a0fc947f705f3e59cc Mon Sep 17 00:00:00 2001
From: Johannes Sixt <johannes.sixt@telecom.at>
Date: Wed, 21 Mar 2007 13:45:58 +0100
Subject: [PATCH] Make open(2) a macro that it replaces "/dev/null" by "nul" on
 MinGW.

---
 git-compat-util.h | 4 ++++
 run-command.c     | 4 ----
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/git-compat-util.h b/git-compat-util.h
index 0d62dc8149..bf9dbe288a 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -397,6 +397,10 @@ static inline int git_unlink(const char *pathname) {
 }
 #define unlink git_unlink
 
+#define open(P, F, M...) \
+	(__builtin_constant_p(*(P)) && !strcmp(P, "/dev/null") ? \
+		open("nul", F, ## M) : open(P, F, ## M))
+
 #include <time.h>
 struct tm *gmtime_r(const time_t *timep, struct tm *result);
 struct tm *localtime_r(const time_t *timep, struct tm *result);
diff --git a/run-command.c b/run-command.c
index 79ca6cc9df..0dcbcd2b8a 100644
--- a/run-command.c
+++ b/run-command.c
@@ -10,11 +10,7 @@ int run_command_v_opt(const char **argv, int flags)
 	int fd_o[2] = { -1, -1 };
 
 	if (flags & RUN_COMMAND_NO_STDIN) {
-#ifndef __MINGW32__
 		fd_i[0] = open("/dev/null", O_RDWR);
-#else
-		fd_i[0] = open("nul", O_RDWR);
-#endif
 	}
 	if (flags & RUN_COMMAND_STDOUT_TO_STDERR)
 		fd_o[1] = dup(2);