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Meta: Add workaround for CMake 4.0 policy minimum changes

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In CMake 4.0, having a minimum policy version set to less than 3.5 is
a hard error at configure time. Add an override until the issue can be
resolved in vcpkg itself.
This commit is contained in:
Andrew Kaster 2025-04-02 09:56:59 -06:00 • committed by Andrew Kaster
parent 8e0786641f
commit 04d44c9b26
Notes: github-actions[bot] 2025-04-02 16:51:19 +00:00
1 changed files with 5 additions and 0 deletions
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Meta/CMake/vcpkg/generate_vcpkg_toolchain_variables.cmake
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@ -17,6 +17,11 @@ if (LINUX AND NOT LAGOM_USE_LINKER)
string(APPEND EXTRA_VCPKG_VARIABLES "set(ENV{LDFLAGS} -Wl,-z,noseparate-code)\n")
endif()
# Temporary workaround until a version of vcpkg with https://github.com/microsoft/vcpkg/pull/44712 is released
if (CMAKE_VERSION VERSION_GREATER_EQUAL "4.0")
string(APPEND EXTRA_VCPKG_VARIABLES "set(ENV{CMAKE_POLICY_VERSION_MINIMUM} 3.5)\n")
endif()
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/build-vcpkg-variables.cmake" "${EXTRA_VCPKG_VARIABLES}")
# Munge the VCPKG_TRIPLET to correspond to the right one for our presets