Fix Windows build of GCC with recent MinGW toolchains

https://gcc.gnu.org/pipermail/gcc-patches/2023-January/609514.html

CHANGELOG.md

@@ -29,6 +29,8 @@ All notable changes to this project will be documented in this file.
 - Fixed documentation generation for newlib.
 - New versions of GDB finally use Python 3 for Windows, so fix the build by using packaged Python from NuGet.
 - Fixed build of GDB by using proper argument for mpfr.
+- Fixed Windows build of GCC with recent MinGW toolchains
+([upstream patch](https://gcc.gnu.org/pipermail/gcc-patches/2023-January/609514.html)).
 
 [221119](https://github.com/FreddieChopin/bleeding-edge-toolchain/compare/221106...221119)
 ------------------------------------------------------------------------------------------

build-bleeding-edge-toolchain.sh

@@ -800,6 +800,14 @@ extract() {
 extract "${binutilsArchive}"
 extract "${expatArchive}"
 extract "${gccArchive}"
+if [ ! -f "${gcc}_patched" ]; then
+	messageB "Patching ${gcc}"
+	(
+	cd "${gcc}"
+    sed -Ei 's,^( *)#( *)include <windows\.h>,\1#\2define WIN32_LEAN_AND_MEAN\n&,' $(grep -Flr "<windows.h>")
+	)
+	touch "${gcc}_patched"
+fi
 if [ "${skipGdb}" = "n" ]; then
 	extract "${gdbArchive}"
 fi