fixup! CI: test the build and add some mingw specific tests

Author: lazka

.github/workflows/mingw.yml

@@ -7,7 +7,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        msystem: ['MINGW64','MINGW32','UCRT64','CLANG64','CLANG32']
+        msystem: ['MINGW64','MINGW32','UCRT64','CLANG64']
         include:
           - msystem: MINGW64
             prefix: mingw-w64-x86_64
@@ -17,8 +17,6 @@ jobs:
             prefix: mingw-w64-ucrt-x86_64
           - msystem: CLANG64
             prefix: mingw-w64-clang-x86_64
-          - msystem: CLANG32
-            prefix: mingw-w64-clang-i686
     steps:
       - name: Setup git
         run: |
@@ -57,7 +55,7 @@ jobs:
         run: |
           set -ex
 
-          if [[ "${{ matrix.msystem }}" == "CLANG64" ]] || [[ "${{ matrix.msystem }}" == "CLANG32" ]]; then
+          if [[ "${{ matrix.msystem }}" == "CLANG64" ]]; then
             export CC=clang
             export CXX=clang++
           fi