From 3c71c42c3117fd4affceb7312105a4f880a235cd Mon Sep 17 00:00:00 2001
From: Bruno Lopes <brunvonlope@outlook.com>
Date: Tue, 31 Mar 2026 11:36:01 -0300
Subject: [PATCH] app, app-tools, libgimp: Use freopen_s on Windows to fix
 CRT_INSECURE_DEPRECATE

---
 app-tools/gimp-debug-tool.c | 11 +++++++++++
 app/main.c                  | 11 +++++++++++
 libgimp/gimp.c              | 11 +++++++++++
 3 files changed, 33 insertions(+)

diff --git a/app-tools/gimp-debug-tool.c b/app-tools/gimp-debug-tool.c
index c6bb16d44b..baf7b46e57 100644
--- a/app-tools/gimp-debug-tool.c
+++ b/app-tools/gimp-debug-tool.c
@@ -65,8 +65,19 @@ main (int    argc,
   if (AttachConsole (ATTACH_PARENT_PROCESS) != 0 && ! g_getenv ("TERM") && ! g_getenv ("SHELL"))
     {
       /* 'r' is needed to prevent interleaving and '+' to support colors */
+#ifndef _UCRT
       freopen ("CONOUT$", "r+", stdout);
       freopen ("CONOUT$", "r+", stderr);
+#else
+      FILE* fileOut;
+      FILE* fileErr;
+
+      errno_t errOut = freopen_s (&fileOut, "CONOUT$", "r+", stdout);
+      errno_t errErr = freopen_s (&fileErr, "CONOUT$", "r+", stderr);
+
+      if (errOut != 0 || errErr != 0)
+        g_warning ("Failed to redirect streams to CONOUT$. stdout: %d, stderr: %d", errOut, errErr);
+#endif
       _flushall ();
 
       {
diff --git a/app/main.c b/app/main.c
index f3a72fe7e3..4fc373eeaa 100644
--- a/app/main.c
+++ b/app/main.c
@@ -962,8 +962,19 @@ gimp_attach_console_window (void)
   if (AttachConsole (ATTACH_PARENT_PROCESS) != 0)
     {
       /* 'r' is needed to prevent interleaving and '+' to support colors */
+#ifndef _UCRT
       freopen ("CONOUT$", "r+", stdout);
       freopen ("CONOUT$", "r+", stderr);
+#else
+      FILE* fileOut;
+      FILE* fileErr;
+
+      errno_t errOut = freopen_s (&fileOut, "CONOUT$", "r+", stdout);
+      errno_t errErr = freopen_s (&fileErr, "CONOUT$", "r+", stderr);
+
+      if (errOut != 0 || errErr != 0)
+        g_warning ("Failed to redirect streams to CONOUT$. stdout: %d, stderr: %d", errOut, errErr);
+#endif
       _flushall ();
 
       {
diff --git a/libgimp/gimp.c b/libgimp/gimp.c
index b117ae49d9..cefd101492 100644
--- a/libgimp/gimp.c
+++ b/libgimp/gimp.c
@@ -205,8 +205,19 @@ gimp_main (GType  plug_in_type,
   if (AttachConsole (ATTACH_PARENT_PROCESS) != 0 && ! g_getenv ("TERM") && ! g_getenv ("SHELL"))
     {
       /* 'r' is needed to prevent interleaving and '+' to support colors */
+#ifndef _UCRT
       freopen ("CONOUT$", "r+", stdout);
       freopen ("CONOUT$", "r+", stderr);
+#else
+      FILE* fileOut;
+      FILE* fileErr;
+
+      errno_t errOut = freopen_s (&fileOut, "CONOUT$", "r+", stdout);
+      errno_t errErr = freopen_s (&fileErr, "CONOUT$", "r+", stderr);
+
+      if (errOut != 0 || errErr != 0)
+        g_warning ("Failed to redirect streams to CONOUT$. stdout: %d, stderr: %d", errOut, errErr);
+#endif
       _flushall ();
     }