3 files changed, 32 insertions, 13 deletions
diff --git a/src/scripts/ci/appveyor.yml b/src/scripts/ci/appveyor.yml
index ad9c34406..b323a1f6d 100644
--- a/src/scripts/ci/appveyor.yml
+++ b/src/scripts/ci/appveyor.yml
@@ -8,8 +8,16 @@ environment:
 
   matrix:
 
+    # MinGW GCC
+    - CC: MinGW
+      PLATFORM: x86_amd64
+      TARGET: static
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+      MAKE_TOOL: mingw32-make
+      TARGET_CC: gcc
+
     # MSVC 2015 DLL x86-32
-    - MSVS: 2015
+    - CC: VC2015
       PLATFORM: x86
       TARGET: shared
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
@@ -17,9 +25,10 @@ environment:
       BOOST_LIBRARYDIR: "C:\\Libraries\\boost_1_69_0\\lib32-msvc-14.0"
       BOOST_SYSTEM_LIBRARY: "libboost_system-vc140-mt-x32-1_69.lib"
       MAKE_TOOL: nmake
+      TARGET_CC: msvc
 
     # MSVC 2017 DLL x86-32
-    - MSVS: 2017
+    - CC: VC2017
       PLATFORM: x86
       TARGET: shared
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
@@ -27,9 +36,10 @@ environment:
       BOOST_LIBRARYDIR: "C:\\Libraries\\boost_1_69_0\\lib32-msvc-14.1"
       BOOST_SYSTEM_LIBRARY: "libboost_system-vc141-mt-x32-1_69.lib"
       MAKE_TOOL: jom
+      TARGET_CC: msvc
 
     # MSVC 2017 DLL x86-64
-    - MSVS: 2017
+    - CC: VC2017
       PLATFORM: x86_amd64
       TARGET: shared
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
@@ -37,9 +47,10 @@ environment:
       BOOST_LIBRARYDIR: "C:\\Libraries\\boost_1_69_0\\lib64-msvc-14.1"
       BOOST_SYSTEM_LIBRARY: "libboost_system-vc141-mt-x64-1_69.lib"
       MAKE_TOOL: jom
+      TARGET_CC: msvc
 
     # MSVC 2017 static x86-64
-    - MSVS: 2017
+    - CC: VC2017
       PLATFORM: x86_amd64
       TARGET: static
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
@@ -47,26 +58,29 @@ environment:
       BOOST_LIBRARYDIR: "C:\\Libraries\\boost_1_69_0\\lib64-msvc-14.1"
       BOOST_SYSTEM_LIBRARY: "libboost_system-vc141-mt-x64-1_69.lib"
       MAKE_TOOL: jom
+      TARGET_CC: msvc
 
     # MSVC 2019 static x86-64 w/debug iterators
-    - MSVS: 2019
+    - CC: VC2019
       PLATFORM: x86_amd64
       TARGET: sanitizer
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
       MAKE_TOOL: jom
+      TARGET_CC: msvc
 
     # MSVC 2019 x86-64 preview
-    - MSVS: 2019p
+    - CC: VC2019p
       PLATFORM: x86_amd64
       TARGET: static
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019 Preview
       MAKE_TOOL: jom
+      TARGET_CC: msvc
 
 install:
   - call src\scripts\ci\setup_appveyor.bat
 
 build_script:
-  - python src\scripts\ci_build.py --os=windows --cc=msvc --without-python3 --compiler-cache=sccache --make-tool=%MAKE_TOOL% --cpu=%PLATFORM% %TARGET%
+  - python src\scripts\ci_build.py --os=windows --cc=%TARGET_CC% --without-python3 --compiler-cache=sccache --make-tool=%MAKE_TOOL% --cpu=%PLATFORM% %TARGET%
 
 # whitelist branches to avoid testing feature branches twice (as branch and as pull request)
 branches:
diff --git a/src/scripts/ci/setup_appveyor.bat b/src/scripts/ci/setup_appveyor.bat
index ed7a8f1a9..443c89791 100644
--- a/src/scripts/ci/setup_appveyor.bat
+++ b/src/scripts/ci/setup_appveyor.bat
@@ -1,13 +1,15 @@
 
-echo Current build setup MSVS="%MSVS%" PLATFORM="%PLATFORM%" TARGET="%TARGET%"
+echo Current build setup CC="%CC%" PLATFORM="%PLATFORM%" TARGET="%TARGET%"
 
-if %MSVS% == 2015 call "%ProgramFiles(x86)%\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %PLATFORM%
-if %MSVS% == 2017 call "%ProgramFiles(x86)%\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" %PLATFORM%
-if %MSVS% == 2019 call "%ProgramFiles(x86)%\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvarsall.bat" %PLATFORM%
-if %MSVS% == 2019p call "%ProgramFiles(x86)%\Microsoft Visual Studio\2019\Preview\VC\Auxiliary\Build\vcvarsall.bat" %PLATFORM%
+if %CC% == VC2015 call "%ProgramFiles(x86)%\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %PLATFORM%
+if %CC% == VC2017 call "%ProgramFiles(x86)%\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" %PLATFORM%
+if %CC% == VC2019 call "%ProgramFiles(x86)%\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvarsall.bat" %PLATFORM%
+if %CC% == VC2019p call "%ProgramFiles(x86)%\Microsoft Visual Studio\2019\Preview\VC\Auxiliary\Build\vcvarsall.bat" %PLATFORM%
+if %CC% == MinGW set PATH=%PATH%;C:\msys64\mingw64\bin
 
 rem check compiler version
-cl
+if %CC% == MinGW g++ -v
+if not %CC% == MinGW cl
 
 appveyor DownloadFile https://github.com/mozilla/sccache/releases/download/%SCCACHE_VERSION%/sccache-%SCCACHE_VERSION%-x86_64-pc-windows-msvc.tar.gz
 tar -xf sccache-%SCCACHE_VERSION%-x86_64-pc-windows-msvc.tar.gz
diff --git a/src/scripts/ci_build.py b/src/scripts/ci_build.py
index 5ca132a8f..b75b52e84 100755
--- a/src/scripts/ci_build.py
+++ b/src/scripts/ci_build.py
@@ -46,6 +46,9 @@ def determine_flags(target, target_os, target_cpu, target_cc, cc_bin, ccache, ro
         elif target in ['cross-android-arm32', 'cross-android-arm64']:
             target_os = 'android'
 
+    if target_os == 'windows' and target_cc == 'gcc':
+        target_os = 'mingw'
+
     make_prefix = []
     test_prefix = []
     test_cmd = [os.path.join(root_dir, 'botan-test')]