mirror of
https://github.com/zealdocs/zeal.git
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Oleg Shparber
71 lines
3.1 KiB
CMake
71 lines
3.1 KiB
CMake
#
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# SetupVcpkg.cmake - Auto-detect and configure vcpkg integration
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#
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# SPDX-FileCopyrightText: Oleg Shparber, et al. <https://zealdocs.org>
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# SPDX-License-Identifier: MIT
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#
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function(setup_vcpkg)
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# Auto-detect vcpkg if not already configured.
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if(NOT DEFINED CMAKE_TOOLCHAIN_FILE)
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set(_vcpkg_root "")
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if(DEFINED ENV{VCPKG_ROOT})
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if(EXISTS "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake")
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set(_vcpkg_root "$ENV{VCPKG_ROOT}")
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else()
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message(WARNING
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"VCPKG_ROOT is set to '$ENV{VCPKG_ROOT}' but does not contain a valid"
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" vcpkg checkout (scripts/buildsystems/vcpkg.cmake is missing); ignoring."
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)
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endif()
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elseif(WIN32)
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# PATH fallback only on Windows, where vcpkg is the canonical dep source.
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# Other platforms use the system package manager and must not silently
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# engage vcpkg via a stray binary on PATH.
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# Resolve symlinks so e.g. /usr/local/bin/vcpkg -> /opt/vcpkg/vcpkg yields
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# /opt/vcpkg rather than /usr/local/bin.
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find_program(VCPKG_EXECUTABLE vcpkg)
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if(VCPKG_EXECUTABLE)
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get_filename_component(_vcpkg_real "${VCPKG_EXECUTABLE}" REALPATH)
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get_filename_component(_candidate "${_vcpkg_real}" DIRECTORY)
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if(EXISTS "${_candidate}/scripts/buildsystems/vcpkg.cmake")
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set(_vcpkg_root "${_candidate}")
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endif()
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endif()
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endif()
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if(_vcpkg_root)
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set(CMAKE_TOOLCHAIN_FILE "${_vcpkg_root}/scripts/buildsystems/vcpkg.cmake" CACHE STRING "")
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message(NOTICE "Using vcpkg from ${_vcpkg_root}")
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endif()
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endif()
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if(NOT CMAKE_TOOLCHAIN_FILE MATCHES "vcpkg")
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return()
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endif()
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# Share installed packages across build configurations.
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if(NOT DEFINED CACHE{VCPKG_INSTALLED_DIR})
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set(VCPKG_INSTALLED_DIR "${CMAKE_SOURCE_DIR}/build/vcpkg_installed" CACHE STRING "")
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endif()
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# On Windows, default to a release-only triplet to speed up builds. Switch to the
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# default (debug+release) triplet only for true Debug builds — RelWithDebInfo and
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# MinSizeRel still link against release-built deps. Multi-config generators (Visual
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# Studio, Ninja Multi-Config, Xcode) leave CMAKE_BUILD_TYPE empty at configure time,
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# so default to the full triplet to cover every config the user may build.
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if(WIN32 AND NOT DEFINED VCPKG_TARGET_TRIPLET)
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get_cmake_property(_vcpkg_is_multi_config GENERATOR_IS_MULTI_CONFIG)
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if(_vcpkg_is_multi_config OR CMAKE_BUILD_TYPE STREQUAL "Debug")
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set(VCPKG_TARGET_TRIPLET "x64-windows" CACHE STRING "")
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else()
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set(VCPKG_TARGET_TRIPLET "x64-windows-release" CACHE STRING "")
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endif()
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unset(_vcpkg_is_multi_config)
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endif()
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# Deploy vcpkg dependencies alongside the build output.
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if(NOT DEFINED X_VCPKG_APPLOCAL_DEPS_INSTALL)
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set(X_VCPKG_APPLOCAL_DEPS_INSTALL ON CACHE BOOL "")
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endif()
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endfunction()
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