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59 lines
2.3 KiB
CMake
59 lines
2.3 KiB
CMake
#[===[.md:
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# vcpkg_check_linkage
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Asserts the available library and CRT linkage options for the port.
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## Usage
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```cmake
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vcpkg_check_linkage(
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[ONLY_STATIC_LIBRARY | ONLY_DYNAMIC_LIBRARY]
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[ONLY_STATIC_CRT | ONLY_DYNAMIC_CRT]
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)
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```
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## Parameters
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### ONLY_STATIC_LIBRARY
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Indicates that this port can only be built with static library linkage.
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Note: If the user requested a dynamic build ONLY_STATIC_LIBRARY will result in a note being printed, not a fatal error.
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### ONLY_DYNAMIC_LIBRARY
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Indicates that this port can only be built with dynamic/shared library linkage.
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### ONLY_STATIC_CRT
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Indicates that this port can only be built with static CRT linkage.
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### ONLY_DYNAMIC_CRT
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Indicates that this port can only be built with dynamic/shared CRT linkage.
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## Notes
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This command will either alter the settings for `VCPKG_LIBRARY_LINKAGE` or fail, depending on what was requested by the user versus what the library supports.
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## Examples
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* [abseil](https://github.com/Microsoft/vcpkg/blob/master/ports/abseil/portfile.cmake)
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#]===]
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function(vcpkg_check_linkage)
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cmake_parse_arguments(_csc "ONLY_STATIC_LIBRARY;ONLY_DYNAMIC_LIBRARY;ONLY_DYNAMIC_CRT;ONLY_STATIC_CRT" "" "" ${ARGN})
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if(_csc_ONLY_STATIC_LIBRARY AND VCPKG_LIBRARY_LINKAGE STREQUAL "dynamic")
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message(STATUS "Note: ${PORT} only supports static library linkage. Building static library.")
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set(VCPKG_LIBRARY_LINKAGE static PARENT_SCOPE)
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endif()
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if(_csc_ONLY_DYNAMIC_LIBRARY AND VCPKG_LIBRARY_LINKAGE STREQUAL "static")
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message(STATUS "Note: ${PORT} only supports dynamic library linkage. Building dynamic library.")
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if(VCPKG_CRT_LINKAGE STREQUAL "static")
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message(FATAL_ERROR "Refusing to build unexpected dynamic library against the static CRT. If this is desired, please configure your triplet to directly request this configuration.")
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endif()
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set(VCPKG_LIBRARY_LINKAGE dynamic PARENT_SCOPE)
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endif()
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if(_csc_ONLY_DYNAMIC_CRT AND VCPKG_CRT_LINKAGE STREQUAL "static")
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message(FATAL_ERROR "${PORT} only supports dynamic crt linkage")
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endif()
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if(_csc_ONLY_STATIC_CRT AND VCPKG_CRT_LINKAGE STREQUAL "dynamic")
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message(FATAL_ERROR "${PORT} only supports static crt linkage")
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endif()
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endfunction()
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