From 79727e539c4ed729963a7cfd0cb77b7d0075491c Mon Sep 17 00:00:00 2001
From: oaq <info@ourairquality.org>
Date: Fri, 5 Jun 2026 21:18:10 +1000
Subject: [PATCH] convbin: workaround gmtime_r for windows WIN32

MSC has gmtime_s, but not BCC which has gmtime_r.
---
 app/consapp/convbin/convbin.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/consapp/convbin/convbin.c b/app/consapp/convbin/convbin.c
index 44aa24234..765abad00 100644
--- a/app/consapp/convbin/convbin.c
+++ b/app/consapp/convbin/convbin.c
@@ -403,7 +403,11 @@ static int get_filetime(const char *file, gtime_t *time)
     struct stat st;
     if (!stat(path, &st)) {
         struct tm tm;
+#ifdef _MSC_VER
+        if (gmtime_s(&tm, &st.st_mtime) != 0) {
+#else
         if (gmtime_r(&st.st_mtime, &tm)) {
+#endif
           double ep[6];
           ep[0] = tm.tm_year + 1900;
           ep[1] = tm.tm_mon + 1;