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Daksh Mamodiya
52c8b8104b
`DISTRIB_*` read os-release under `CMAKE_SYSROOT`, so cross builds got the target distro from a host-oriented command, and a process-wide static froze the first result. Add a `FROM_SYSROOT <bool>` option and policy `CMP0221` to default to the host, parse per call, and scope `CMAKE_SYSROOT` so the fallback scripts follow the same choice. Fixes: #27640
18 lines
693 B
CMake
18 lines
693 B
CMake
# FROM_SYSROOT is accepted after and between keys, not just as the first token.
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cmake_policy(SET CMP0221 NEW)
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set(CMAKE_SYSROOT "${CMAKE_CURRENT_LIST_DIR}/Sentinel")
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# After a key.
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cmake_host_system_information(RESULT after QUERY DISTRIB_ID FROM_SYSROOT ON)
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if(NOT after STREQUAL "sentineltarget")
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message(FATAL_ERROR "FROM_SYSROOT after a key read '${after}', expected 'sentineltarget'")
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endif()
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# Between keys.
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cmake_host_system_information(RESULT between QUERY DISTRIB_ID FROM_SYSROOT ON DISTRIB_NAME)
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list(GET between 0 between_id)
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if(NOT between_id STREQUAL "sentineltarget")
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message(FATAL_ERROR "FROM_SYSROOT between keys read '${between_id}', expected 'sentineltarget'")
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endif()
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