Merge branch 'mingw-strftime'

This topic branch works around an out-of-memory bug when the user
specified a format via --date=format:<format> that strftime() does
not like.

Reported by Stefan Naewe.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

compat/mingw.c

@@ -888,6 +888,17 @@ int mingw_utime (const char *file_name, const struct utimbuf *times)
 	return rc;
 }
 
+#undef strftime
+size_t mingw_strftime(char *s, size_t max,
+		      const char *format, const struct tm *tm)
+{
+	size_t ret = strftime(s, max, format, tm);
+
+	if (!ret && errno == EINVAL)
+		die("invalid strftime format: '%s'", format);
+	return ret;
+}
+
 unsigned int sleep (unsigned int seconds)
 {
 	Sleep(seconds*1000);

compat/mingw.h

@@ -440,6 +440,9 @@ extern int (*lstat)(const char *file_name, struct stat *buf);
 
 int mingw_utime(const char *file_name, const struct utimbuf *times);
 #define utime mingw_utime
+size_t mingw_strftime(char *s, size_t max,
+		   const char *format, const struct tm *tm);
+#define strftime mingw_strftime
 
 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 		     const char *dir,