PKGBUILD


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# Maintainer: Daniel Bermond <dbermond@archlinux.org>

pkgname=spirv-cross
pkgver=2022.05.27
pkgrel=1
_tag=sdk-1.3.216.0
_glslang_commit=7dda6a6347b0bd550e202942adee475956ef462a
_spirv_tools_commit=82d91083cb56c89d2cb8e9d56d4d69f07ac34fed
_spirv_headers_commit=5a121866927a16ab9d49bed4788b532c7fcea766
pkgdesc='A tool and library for parsing and converting SPIR-V to other shader languages'
arch=('x86_64')
url='https://github.com/KhronosGroup/SPIRV-Cross/'
license=('Apache')
depends=('gcc-libs')
makedepends=('git' 'cmake' 'python')
source=("git+https://github.com/KhronosGroup/SPIRV-Cross.git#tag=${_tag}"
        "git+https://github.com/KhronosGroup/glslang.git#commit=${_glslang_commit}"
        "git+https://github.com/KhronosGroup/SPIRV-Tools.git#commit=${_spirv_tools_commit}"
        "git+https://github.com/KhronosGroup/SPIRV-Headers.git#commit=${_spirv_headers_commit}")
sha256sums=('SKIP'
            'SKIP'
            'SKIP'
            'SKIP')

prepare() {
    mkdir -p SPIRV-Cross/external/{glslang,spirv-tools}
    
    ln -sf "${srcdir}/glslang"       SPIRV-Cross/external/glslang
    ln -sf "${srcdir}/SPIRV-Tools"   SPIRV-Cross/external/spirv-tools
    ln -sf "${srcdir}/SPIRV-Headers" SPIRV-Tools/external/spirv-headers
}

pkgver() {
    git -C SPIRV-Cross log -1 --date='short' --pretty='format:%ci' "$_tag" | awk '{ gsub("-", ".", $1); print $1 }'
}

build() {
    # NOTE: test suite fails when using 'None' build type
    local -a _common_opts=('-DCMAKE_BUILD_TYPE:STRING=Release' '-Wno-dev')
    
    export CFLAGS+=' -ffat-lto-objects'
    export CXXFLAGS+=' -ffat-lto-objects'
    
    # glslang (required for tests)
    cmake -B SPIRV-Cross/external/glslang-build -S glslang \
        "${_common_opts[@]}" \
        -DCMAKE_INSTALL_PREFIX:PATH='output'
    cmake --build SPIRV-Cross/external/glslang-build --target install
    
    # spirv-tools (required for tests)
    cmake -B SPIRV-Cross/external/spirv-tools-build -S SPIRV-Tools \
        "${_common_opts[@]}" \
        -DCMAKE_INSTALL_PREFIX:PATH='output' \
        -DSPIRV_WERROR:BOOL='OFF'
    cmake --build SPIRV-Cross/external/spirv-tools-build --target install
    
    # spirv-cross
    cmake -B build-SPIRV-Cross -S SPIRV-Cross \
        "${_common_opts[@]}" \
        -DCMAKE_INSTALL_PREFIX:PATH='/usr' \
        -DSPIRV_CROSS_FORCE_PIC:BOOL='ON' \
        -DSPIRV_CROSS_SHARED:BOOL='ON'
    make -C build-SPIRV-Cross
}

check() {
    make -C build-SPIRV-Cross test
}

package() {
    make -C build-SPIRV-Cross DESTDIR="$pkgdir" install
}