This file is part of MXE. See LICENSE.md for licensing information.

Contains ad hoc patches for cross building.

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tony Theodore <tonyt@logyst.com>
Date: Fri, 12 Aug 2016 02:01:20 +1000
Subject: [PATCH] fix windres invocation options

windres doesn't recognise various gcc flags like -mms-bitfields,
-fopenmp, -mthreads etc. (basically not `-D` or `-I`)

diff --git a/Modules/Platform/Windows-windres.cmake b/Modules/Platform/Windows-windres.cmake
index 1111111..2222222 100644
--- a/Modules/Platform/Windows-windres.cmake
+++ b/Modules/Platform/Windows-windres.cmake
@@ -1 +1 @@
-set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> -O coff <DEFINES> <INCLUDES> <FLAGS> <SOURCE> <OBJECT>")
+set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> -O coff <DEFINES> <INCLUDES> <SOURCE> <OBJECT>")

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tony Theodore <tonyt@logyst.com>
Date: Tue, 25 Jul 2017 20:34:56 +1000
Subject: [PATCH] add option to disable -isystem

taken from (not accepted):
https://gitlab.kitware.com/cmake/cmake/merge_requests/895

see also:
https://gitlab.kitware.com/cmake/cmake/issues/16291
https://gitlab.kitware.com/cmake/cmake/issues/16919


diff --git a/Modules/Compiler/GNU.cmake b/Modules/Compiler/GNU.cmake
index 1111111..2222222 100644
--- a/Modules/Compiler/GNU.cmake
+++ b/Modules/Compiler/GNU.cmake
@@ -42,7 +42,7 @@ macro(__compiler_gnu lang)
   string(APPEND CMAKE_${lang}_FLAGS_RELWITHDEBINFO_INIT " -O2 -g -DNDEBUG")
   set(CMAKE_${lang}_CREATE_PREPROCESSED_SOURCE "<CMAKE_${lang}_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
   set(CMAKE_${lang}_CREATE_ASSEMBLY_SOURCE "<CMAKE_${lang}_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
-  if(NOT APPLE OR NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4) # work around #4462
+  if(NOT APPLE OR NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4 AND (NOT MXE_DISABLE_INCLUDE_SYSTEM_FLAG)) # work around #4462
     set(CMAKE_INCLUDE_SYSTEM_FLAG_${lang} "-isystem ")
   endif()
 endmacro()