add mingw CI

Signed-off-by: Taiju Yamada <[email protected]>

.github/workflows/ci.yml

@@ -52,6 +52,57 @@ jobs:
       - name: Run extended tests
         run: bash tools/test_extended.sh
 
+  run_tests_mingw_linux_64:
+    needs: check_format
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/[email protected]
+      - name: Install build dependencies (Linux)
+        run: sudo apt install nasm mingw-w64
+        if: runner.os == 'Linux'
+      - name: Build
+        shell: bash
+        run: |
+          make -j $(nproc) -f Makefile.unx programs/igzip tests arch=mingw host_cpu=x86_64
+      # wine does not seem available, hence cannot run tests.
+
+  run_tests_mingw_linux_32:
+    needs: check_format
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/[email protected]
+      - name: Install build dependencies (Linux)
+        run: sudo apt install nasm mingw-w64
+        if: runner.os == 'Linux'
+      - name: Build
+        shell: bash
+        run: |
+          make -j $(nproc) -f Makefile.unx programs/igzip tests arch=mingw host_cpu=base_aliases CC=i686-w64-mingw32-gcc
+
+  run_tests_mingw_windows_64:
+    needs: check_format
+    runs-on: windows-latest
+    steps:
+      - uses: actions/[email protected]
+      - name: Install nasm
+        uses: ilammy/[email protected]
+      - name: Build
+        shell: bash
+        run: |
+          make -j $(nproc) -f Makefile.unx programs/igzip tests SIM= arch=mingw host_cpu=x86_64 AR=x86_64-w64-mingw32-gcc-ar
+      - name: Run tests
+        shell: bash
+        run: |
+          # autoconf is missing, hence simulates test_checks.sh
+          make -j $(nproc) -f Makefile.unx check D=TEST_SEED=0 SIM= arch=mingw host_cpu=x86_64 AR=x86_64-w64-mingw32-gcc-ar
+      - name: Run extended tests
+        run: |
+          # simulates test_extended.sh
+          make -j $(nproc) -f Makefile.unx perf D=TEST_SEED=0 SIM= arch=mingw host_cpu=x86_64 AR=x86_64-w64-mingw32-gcc-ar
+          make -j $(nproc) -f Makefile.unx test D=TEST_SEED=0 SIM= arch=mingw host_cpu=x86_64 AR=x86_64-w64-mingw32-gcc-ar
+
+  # seems like i686-w64-mingw32-gcc is not available on windows runner.
+
   run_tests_windows:
     needs: check_format
     runs-on: windows-latest