From 04bf7486bc4249d4c6c7bca8f23dcc95b1cb8ac9 Mon Sep 17 00:00:00 2001
From: Nathan Moinvaziri <nathan@nathanm.com>
Date: Sat, 12 Sep 2020 21:08:00 -0700
Subject: [PATCH] Added ubuntu mingw cross-compile CI instances to cmake GHA.

---
 .github/workflows/cmake.yml        | 17 +++++++++++++++++
 cmake/toolchain-mingw-i686.cmake   | 15 +++++++++------
 cmake/toolchain-mingw-x86_64.cmake | 15 +++++++++------
 3 files changed, 35 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 220db70c..0a53a356 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -34,6 +34,8 @@ jobs:
           Ubuntu GCC S390X,
           Ubuntu GCC S390X DFLTCC,
           Ubuntu GCC S390X DFLTCC Compat,
+          Ubuntu MinGW i686,
+          Ubuntu MinGW x86_64,
           Ubuntu Clang,
           Ubuntu Clang Inflate Strict,
           Ubuntu Clang Inflate Allow Invalid Dist,
@@ -237,6 +239,20 @@ jobs:
             ldflags: -static
             codecov: ubuntu_gcc_s390x
 
+          - name: Ubuntu MinGW i686
+            os: ubuntu-latest
+            compiler: i686-w64-mingw32-gcc
+            cmake-args: -DCMAKE_TOOLCHAIN_FILE=cmake/toolchain-mingw-i686.cmake
+            packages: wine32 gcc-mingw-w64
+            codecov: ubuntu_gcc_mingw_i686
+
+          - name: Ubuntu MinGW x86_64
+            os: ubuntu-latest
+            compiler: x86_64-w64-mingw32-gcc
+            cmake-args: -DCMAKE_TOOLCHAIN_FILE=cmake/toolchain-mingw-x86_64.cmake
+            packages: wine-stable gcc-mingw-w64
+            codecov: ubuntu_gcc_mingw_x86_64
+
           - name: Ubuntu Clang
             os: ubuntu-latest
             compiler: clang
@@ -342,6 +358,7 @@ jobs:
     - name: Install packages (Ubuntu)
       if: runner.os == 'Linux' && matrix.packages
       run: |
+        sudo dpkg --add-architecture i386 # Required for wine32
         sudo apt-get update
         sudo apt-get install -y ${{ matrix.packages }}
 
diff --git a/cmake/toolchain-mingw-i686.cmake b/cmake/toolchain-mingw-i686.cmake
index 5a93edff..588ec0ef 100644
--- a/cmake/toolchain-mingw-i686.cmake
+++ b/cmake/toolchain-mingw-i686.cmake
@@ -1,13 +1,16 @@
-SET(CMAKE_SYSTEM_NAME Windows)
+set(CMAKE_SYSTEM_NAME Windows)
 
-SET(CMAKE_C_COMPILER_TARGET i686)
+set(CMAKE_C_COMPILER_TARGET i686)
 set(CMAKE_CXX_COMPILER_TARGET i686)
 
-SET(CMAKE_C_COMPILER i686-w64-mingw32-gcc)
-SET(CMAKE_CXX_COMPILER i686-w64-mingw32-g++)
-SET(CMAKE_RC_COMPILER i686-w64-mingw32-windres)
+set(CMAKE_C_COMPILER i686-w64-mingw32-gcc)
+set(CMAKE_CXX_COMPILER i686-w64-mingw32-g++)
+set(CMAKE_RC_COMPILER i686-w64-mingw32-windres)
 
-SET(CMAKE_FIND_ROOT_PATH /usr/i686-w64-mingw32)
+set(CMAKE_CROSSCOMPILING TRUE)
+set(CMAKE_CROSSCOMPILING_EMULATOR wine)
+
+set(CMAKE_FIND_ROOT_PATH /usr/i686-w64-mingw32)
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
 set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
diff --git a/cmake/toolchain-mingw-x86_64.cmake b/cmake/toolchain-mingw-x86_64.cmake
index 494d59fc..c778b722 100644
--- a/cmake/toolchain-mingw-x86_64.cmake
+++ b/cmake/toolchain-mingw-x86_64.cmake
@@ -1,13 +1,16 @@
-SET(CMAKE_SYSTEM_NAME Windows)
+set(CMAKE_SYSTEM_NAME Windows)
 
-SET(CMAKE_C_COMPILER_TARGET x86_64)
+set(CMAKE_C_COMPILER_TARGET x86_64)
 set(CMAKE_CXX_COMPILER_TARGET x86_64)
 
-SET(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc)
-SET(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
-SET(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
+set(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc)
+set(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
+set(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
 
-SET(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32)
+set(CMAKE_CROSSCOMPILING TRUE)
+set(CMAKE_CROSSCOMPILING_EMULATOR wine)
+
+set(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32)
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
 set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
-- 
2.47.2