Compiling using msys2 for windows

[networkfusion]

I am trying to create a decent automated pipeine and add VS2019 support, but in order to do that I want to be sure that I can create a Window build using linux+mingw successfully. I can do that (which is tested to work) but requires multiple DLL's that are not required by the released EXE available. My current branch is https://github.com/N64-tools/cen64/tree/azure-pipelines with the main issue being https://github.com/N64-tools/cen64/blob/dab68603de2988b82fd9c6c0bc02b622826c0a98/azure-pipelines.yml#L114 I have tried using -DBUILD_SHARED_LIBS=ON -DCMAKE_LINK_SEARCH_START_STATIC=ON to no avail. I am hoping someone will help...

EDIT: the issue is using the default OpenAL libs. The binary must be downloaded in order for it to not rely on msys.

[networkfusion]

Here is a github workflow that solves my issue:

name: msys2-windows

on:
  push:
  pull_request:

jobs:
  build:
    runs-on: windows-latest
    strategy:
      fail-fast: false
      matrix:
        include: [
          { msystem: MINGW64, arch: x86_64, extensions: AVX },
          { msystem: MINGW64, arch: x86_64, extensions: Native }
        ]
    steps:
      - uses: actions/checkout@v2
        with:
          path: temp
          fetch-depth: 0

      - uses: msys2/setup-msys2@v2
        with:
          msystem: MINGW64
          install: >-
            curl
            p7zip
            git
            sed
            base-devel
            mingw-w64-${{ matrix.arch }}-cmake
            mingw-w64-${{ matrix.arch }}-toolchain
          update: true

      - name: Move Checkout
        run: |
          Copy-Item -Path ".\temp" -Destination "C:\_" -Recurse
          New-Item -Path "C:\_" -Name "build" -ItemType "directory"

      - name: Get OpenAL
        shell: msys2 {0}
        run: |
          curl -SL -o openal-soft.zip https://openal-soft.org/openal-binaries/openal-soft-1.21.0-bin.zip
          7z x openal-soft.zip
          cd openal-soft-1.21.0-bin
          ls
          mkdir /C/_/openal/
          mkdir /C/_/openal/include/
          cp -R ./include/AL/. /C/_/openal/include/
          mkdir /C/_/openal/lib/
          cp -R ./libs/Win64/. /C/_/openal/lib/
          cp -R ./bin/Win64/soft_oal.dll /C/_/build/OpenAL32.dll
          cd ..

      - name: Correct pthread to allow static
        shell: msys2 {0}
        run: |
          sed -z 's/#else\n#define WINPTHREAD_API __declspec(dllimport)/#else\n#define WINPTHREAD_API/' /mingw64/x86_64-w64-mingw32/include/pthread.h

      - name: Build iconv static lib
        shell: msys2 {0}
        run: |
          curl -SL http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.16.tar.gz | tar -xz -C .
          cd libiconv-1.16
          ./configure --prefix=/mingw64/local --disable-shared --enable-static
          make
          make install-strip
          cd ..

      - name: Build CEN64
        shell: msys2 {0}
        run: |
          cd /C/_
          cd build
          cmake -DCMAKE_FIND_LIBRARY_SUFFIXES='.a' -DICONV_INCLUDE_DIR:PATH=/mingw64/local/include -DICONV_LIBRARIES:FILEPATH=/mingw64/local/lib/libiconv.a -DOPENAL_INCLUDE_DIR:PATH=/C/_/openal/include -DOPENAL_LIBRARY:FILEPATH=/C/_/openal/lib/libOpenAL32.dll.a -DCMAKE_TOOLCHAIN_FILE=cmake/Toolchains/mingw64-${{ matrix.arch }}.cmake -DCEN64_ARCH_SUPPORT:STRING=${{ matrix.extensions }} -DCMAKE_BUILD_TYPE=Release -G 'Unix Makefiles' ..
          make VERBOSE=1 -j4

      - name: "Upload executable"
        uses: actions/upload-artifact@v2
        with:
          name: windows-${{ matrix.arch }}-${{ matrix.extensions }}
          path: C:/_/build/*.exe

      - name: "Upload dll"
        uses: actions/upload-artifact@v2
        with:
          name: windows-${{ matrix.arch }}-${{ matrix.extensions }}
          path: C:/_/build/*.dll

I will leave the issue open incase anyone needs the "fix", or the project owners want to add it to the repo.

[nopjne]

I have changes (very hacky) that build cen64 against with msvc natively without msys2.