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48 lines
1.4 KiB
Markdown
48 lines
1.4 KiB
Markdown
# vcpkg_acquire_msys
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Download and prepare an MSYS2 instance.
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## Usage
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```cmake
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vcpkg_acquire_msys(<MSYS_ROOT_VAR>)
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```
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## Parameters
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### MSYS_ROOT_VAR
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An out-variable that will be set to the path to MSYS2.
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## Notes
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A call to `vcpkg_acquire_msys` will usually be followed by a call to `bash.exe`:
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```cmake
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vcpkg_acquire_msys(MSYS_ROOT)
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set(BASH ${MSYS_ROOT}/usr/bin/bash.exe)
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vcpkg_execute_required_process(
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COMMAND ${BASH} --noprofile --norc "${CMAKE_CURRENT_LIST_DIR}\\build.sh"
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WORKING_DIRECTORY ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel
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LOGNAME build-${TARGET_TRIPLET}-rel
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)
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```
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To ensure a package is available:
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```cmake
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vcpkg_acquire_msys(MSYS_ROOT)
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set(BASH ${MSYS_ROOT}/usr/bin/bash.exe)
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message(STATUS "Installing MSYS Packages")
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vcpkg_execute_required_process(
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COMMAND
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${BASH} --noprofile --norc -c
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'PATH=/usr/bin:\$PATH pacman -Sy --noconfirm --needed make'
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WORKING_DIRECTORY ${MSYS_ROOT}
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LOGNAME pacman-${TARGET_TRIPLET})
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```
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## Examples
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* [ffmpeg](https://github.com/Microsoft/vcpkg/blob/master/ports/ffmpeg/portfile.cmake)
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* [icu](https://github.com/Microsoft/vcpkg/blob/master/ports/icu/portfile.cmake)
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* [libvpx](https://github.com/Microsoft/vcpkg/blob/master/ports/libvpx/portfile.cmake)
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## Source
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[scripts/cmake/vcpkg_acquire_msys.cmake](https://github.com/Microsoft/vcpkg/blob/master/scripts/cmake/vcpkg_acquire_msys.cmake)
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