From 4f8bb65228f490b171b5262d362609296d099da3 Mon Sep 17 00:00:00 2001
From: Thomas Perl <m@thp.io>
Date: Tue, 3 Dec 2024 15:54:13 +0100
Subject: [PATCH] Allow setting _WIN32_WINNT when building

---
 mingw-w64-build | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/mingw-w64-build b/mingw-w64-build
index 4d0da33..96d6518 100755
--- a/mingw-w64-build
+++ b/mingw-w64-build
@@ -21,6 +21,7 @@ ROOT_PATH="$HOME/.zeranoe/mingw-w64"
 MINGW_W64_BRANCH="master"
 BINUTILS_BRANCH="binutils-2_42-branch"
 GCC_BRANCH="releases/gcc-14"
+WIN32_WINNT="0xa00"
 
 ENABLE_THREADS="--enable-threads=posix"
 
@@ -51,6 +52,22 @@ Options:
   --gcc-branch <branch>        set GCC branch (default: $GCC_BRANCH)
   --mingw-w64-branch <branch>  set MinGW-w64 branch (default: $MINGW_W64_BRANCH)
   --linked-runtime <runtime>   set MinGW Linked Runtime (default: $LINKED_RUNTIME)
+  --win32-winnt <version>      set default _WIN32_WINNT value (default: $WIN32_WINNT)
+
+Possible _WIN32_WINNT values:
+
+  0x0400 (Windows NT 4.0)
+  0x0500 (Windows 2000)
+  0x0501 (Windows XP)
+  0x0502 (Windows Server 2003)
+  0x0600 (Windows Vista)
+  0x0601 (Windows 7)
+  0x0602 (Windows 8)
+  0x0603 (Windows 8.1)
+  0x0A00 (Windows 10)
+
+See also: https://learn.microsoft.com/en-us/cpp/porting/modifying-winver-and-win32-winnt
+
 EOF
 }
 
@@ -187,6 +204,7 @@ build()
     execute "($arch): configuring MinGW-w64 headers" "" \
         "$SRC_PATH/mingw-w64/mingw-w64-headers/configure" --build="$BUILD" \
             --host="$host" --prefix="$prefix/$host" \
+            --with-default-win32-winnt=$WIN32_WINNT \
             --with-default-msvcrt=$LINKED_RUNTIME
 
     execute "($arch): installing MinGW-w64 headers" "" \
@@ -351,6 +369,20 @@ while :; do
         --mingw-w64-branch=)
             arg_error "'--mingw-w64-branch' requires a non-empty option argument"
             ;;
+        --win32-winnt)
+            if [ "$2" ]; then
+                WIN32_WINNT="$2"
+                shift
+            else
+                arg_error "'--win32-winnt' requires a non-empty option argument"
+            fi
+            ;;
+        --win32-winnt=?*)
+            WIN32_WINNT=${1#*=}
+            ;;
+        --WIN32_WINNT=)
+            arg_error "'--win32-winnt' requires a non-empty option argument"
+            ;;
         i586)
             BUILD_I586=1
             ;;