workflows: use clang installation stdlib as include

.github/workflows/reassemble.yml

@@ -30,7 +30,7 @@ jobs:
       uses: robinraju/release-downloader@v1
       with:
         repository: 'openblack/llvm-project'
-        tag: 'bw1-decomp-004'
+        tag: 'bw1-decomp-006'
         fileName: 'llvm-${{ matrix.os }}.zip'
         extract: true
         out-file-path: 'llvm'
@@ -39,15 +39,24 @@ jobs:
       if: ${{ runner.os != 'Windows' }}
       run: chmod -R +x llvm/bin
 
+    - if: ${{ runner.os == 'Windows' }}
+      run: |
+        C:/msys64/usr/bin/pacman -Sy --noconfirm mingw-w64-clang-x86_64-headers-git
+
+    - if: ${{ runner.os != 'Windows' }}
+      run: |
+        sudo apt install -y mingw-w64 libc6-dev-i386-cross
+
     - name: Set path for LLVM binaries in env
       shell: bash
       run: |
         echo "LLVM_BINARIES=$(echo '${{ github.workspace }}'/llvm/bin | sed 's,\\,/,g')" >> $GITHUB_ENV
+        echo "CLANG_INCLUDE=$(echo '${{ github.workspace }}/llvm/lib/clang/20/include;/usr/i686-w64-mingw32/include' | sed 's,\\,/,g')" >> $GITHUB_ENV
         echo "LLVM_SUFFIX=${{ runner.os == 'Windows' && '.exe' || '' }}" >> $GITHUB_ENV
 
     - name: Build bw1-decomp project
       run: |
-        cmake -G Ninja -Ssrc -Bbuild -DCMAKE_BUILD_TYPE=Release -DCMAKE_ASM_COMPILER="${{env.LLVM_BINARIES}}/clang${{env.LLVM_SUFFIX}}" -DCMAKE_RC_COMPILER="${{env.LLVM_BINARIES}}/llvm-rc${{env.LLVM_SUFFIX}}" -DCMAKE_LINKER="${{env.LLVM_BINARIES}}/lld${{env.LLVM_SUFFIX}}"
+        cmake -G Ninja -Ssrc -Bbuild -DCMAKE_BUILD_TYPE=Release -DCMAKE_ASM_COMPILER="${{env.LLVM_BINARIES}}/clang${{env.LLVM_SUFFIX}}" -DCMAKE_RC_COMPILER="${{env.LLVM_BINARIES}}/llvm-rc${{env.LLVM_SUFFIX}}" -DCMAKE_LINKER="${{env.LLVM_BINARIES}}/lld${{env.LLVM_SUFFIX}}" -DCMAKE_C_STANDARD_INCLUDE_DIRECTORIES="${{env.CLANG_INCLUDE}}"
         cmake --build build
 
     - name: Verify MD5 sum of resulting binary

src/CMakeLists.txt

@@ -428,6 +428,7 @@ target_link_options(runblack-reassembled
 )
 target_include_directories(runblack-reassembled
     PRIVATE
+        C:/msys64/clang64/include
         ${CMAKE_CURRENT_SOURCE_DIR}
         ${CMAKE_CURRENT_SOURCE_DIR}/..
         ${CMAKE_CURRENT_SOURCE_DIR}/../black