win32: changes to allow timezones in dates

Create mingw_strptime() to return timezone offset as a separate
argument (since Microsoft's struct tm doesn't have the required
member).

Import timegm() from musl.

Update parse_datestr() to use mingw_strptime().

Enable FEATURE_TIMEZONE in the default configuration.

GitHub issue #230.

1 files changed, 3 insertions, 0 deletions

diff --git a/include/mingw.h b/include/mingw.h
index 03ef89029..d48ad3814 100644
--- a/include/mingw.h
+++ b/include/mingw.h
@@ -272,6 +272,8 @@ struct timespec {
 };
 #endif
 
+time_t timegm(struct tm *tm);
+
 int nanosleep(const struct timespec *req, struct timespec *rem);
 
 /*
@@ -402,6 +404,7 @@ pid_t mingw_wait3(pid_t pid, int *status, int options, struct rusage *rusage);
 struct tm *gmtime_r(const time_t *timep, struct tm *result);
 struct tm *localtime_r(const time_t *timep, struct tm *result);
 char *strptime(const char *s, const char *format, struct tm *tm);
+char *mingw_strptime(const char *s, const char *format, struct tm *tm, long *gmt);
 size_t mingw_strftime(char *buf, size_t max, const char *format, const struct tm *tm);
 
 #define strftime mingw_strftime