vcpkg/scripts/cmake/vcpkg_fail_port_install.cmake

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## # vcpkg_fail_port_install
##
## Fails the current portfile with a (default) error message
##
## ## Usage
## ```cmake
## vcpkg_fail_port_install([MESSAGE <message>] [ON_TARGET <target1> [<target2> ...]]
## [ON_ARCH <arch1> [<arch2> ...]]
## [ON_CRT_LINKAGE <link1> [<link2> ...]])
## [ON_LIBRARY_LINKAGE <linklib1> [<linklib2> ...]])
## ```
##
## ## Parameters
## ### MESSAGE
## Additional failure message. If non is given a default message will be displayed depending on the failure condition
##
## ### ALWAYS
## will always fail early
##
## ### ON_TARGET
## targets for which the build should fail early. Valid targets are <target> from VCPKG_IS_TARGET_<target> (see vcpkg_common_definitions.cmake)
##
## ### ON_ARCH
## architecture for which the build should fail early.
##
## ### ON_CRT_LINKAGE
## CRT linkage for which the build should fail early.
##
## ### ON_LIBRARY_LINKAGE
## library linkage for which the build should fail early.
##
## ## Examples
##
## * [aws-lambda-cpp](https://github.com/Microsoft/vcpkg/blob/master/ports/aws-lambda-cpp/portfile.cmake)
function(vcpkg_fail_port_install)
cmake_parse_arguments(PARSE_ARGV 0 _csc "ALWAYS" "MESSAGE" "ON_TARGET;ON_ARCH;ON_CRT_LINKAGE;ON_LIBRARY_LINKAGE")
if(DEFINED _csc_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Unknown arguments passed to vcpkg_fail_port_install. Please correct the portfile!")
endif()
if(DEFINED _csc_MESSAGE)
set(_csc_MESSAGE "${_csc_MESSAGE}\n")
else()
set(_csc_MESSAGE "")
endif()
unset(_fail_port)
#Target fail check
if(DEFINED _csc_ON_TARGET)
foreach(_target ${_csc_ON_TARGET})
string(TOUPPER ${_target} _target_upper)
if(VCPKG_TARGET_IS_${_target_upper})
set(_fail_port TRUE)
set(_csc_MESSAGE "${_csc_MESSAGE}Target '${_target}' not supported by ${PORT}!\n")
endif()
endforeach()
endif()
#Architecture fail check
if(DEFINED _csc_ON_ARCH)
foreach(_arch ${_csc_ON_ARCH})
if(${VCPKG_TARGET_ARCHITECTURE} MATCHES ${_arch})
set(_fail_port TRUE)
set(_csc_MESSAGE "${_csc_MESSAGE}Architecture '${_arch}' not supported by ${PORT}!\n")
endif()
endforeach()
endif()
#CRT linkage fail check
if(DEFINED _csc_ON_CRT_LINKAGE)
foreach(_crt_link ${_csc_ON_CRT_LINKAGE})
if("${VCPKG_CRT_LINKAGE}" MATCHES "${_crt_link}")
set(_fail_port TRUE)
set(_csc_MESSAGE "${_csc_MESSAGE}CRT linkage '${VCPKG_CRT_LINKAGE}' not supported by ${PORT}!\n")
endif()
endforeach()
endif()
#Library linkage fail check
if(DEFINED _csc_ON_LIBRARY_LINKAGE)
foreach(_lib_link ${_csc_ON_LIBRARY_LINKAGE})
if("${VCPKG_LIBRARY_LINKAGE}" MATCHES "${_lib_link}")
set(_fail_port TRUE)
set(_csc_MESSAGE "${_csc_MESSAGE}Library linkage '${VCPKG_LIBRARY_LINKAGE}' not supported by ${PORT}!\n")
endif()
endforeach()
endif()
if(_fail_port OR _csc_ALWAYS)
message(FATAL_ERROR ${_csc_MESSAGE})
endif()
endfunction()