6074e33509
Add comments saying when we want values set in feature check option variables to apply to all feature checks, globally. These are currently: `ws2_32` and `socket` libraries, and `-D_WIN32_WINNT=` macro. Also use `list(APPEND ...)` for the libraries to avoid overwriting potentially existing values. Cherry-picked from #15157 Closes #15253
86 lines
3.3 KiB
CMake
86 lines
3.3 KiB
CMake
#***************************************************************************
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# _ _ ____ _
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# Project ___| | | | _ \| |
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# / __| | | | |_) | |
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# | (__| |_| | _ <| |___
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# \___|\___/|_| \_\_____|
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#
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# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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#
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# This software is licensed as described in the file COPYING, which
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# you should have received as part of this distribution. The terms
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# are also available at https://curl.se/docs/copyright.html.
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#
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# You may opt to use, copy, modify, merge, publish, distribute and/or sell
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# copies of the Software, and permit persons to whom the Software is
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# furnished to do so, under the terms of the COPYING file.
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#
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# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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# KIND, either express or implied.
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#
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# SPDX-License-Identifier: curl
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#
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###########################################################################
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# File defines convenience macros for available feature testing
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# Check if header file exists and add it to the list.
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# This macro is intended to be called multiple times with a sequence of
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# possibly dependent header files. Some headers depend on others to be
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# compiled correctly.
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macro(check_include_file_concat _file _variable)
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check_include_files("${CURL_INCLUDES};${_file}" ${_variable})
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if(${_variable})
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set(CURL_INCLUDES ${CURL_INCLUDES} ${_file})
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set(CURL_TEST_DEFINES "${CURL_TEST_DEFINES} -D${_variable}") # Apply to curl_internal_test()
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endif()
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endmacro()
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# For other curl specific tests, use this macro.
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# Return result in variable: CURL_TEST_OUTPUT
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macro(curl_internal_test _curl_test)
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if(NOT DEFINED "${_curl_test}")
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set(_macro_check_function_definitions
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"-D${_curl_test} ${CURL_TEST_DEFINES} ${CMAKE_REQUIRED_FLAGS}")
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if(CMAKE_REQUIRED_LIBRARIES)
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set(_curl_test_add_libraries
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"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
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endif()
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message(STATUS "Performing Test ${_curl_test}")
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try_compile(${_curl_test}
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${CMAKE_BINARY_DIR}
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"${CMAKE_CURRENT_SOURCE_DIR}/CMake/CurlTests.c"
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CMAKE_FLAGS
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"-DCOMPILE_DEFINITIONS:STRING=${_macro_check_function_definitions}"
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"${_curl_test_add_libraries}"
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OUTPUT_VARIABLE CURL_TEST_OUTPUT)
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if(${_curl_test})
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set(${_curl_test} 1 CACHE INTERNAL "Curl test")
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message(STATUS "Performing Test ${_curl_test} - Success")
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else()
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set(${_curl_test} "" CACHE INTERNAL "Curl test")
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message(STATUS "Performing Test ${_curl_test} - Failed")
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endif()
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endif()
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endmacro()
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macro(curl_dependency_option _dependency)
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set(CURL_${_dependency} "AUTO" CACHE STRING "Build curl with ${_dependency} support (AUTO, ON or OFF)")
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set_property(CACHE CURL_${_dependency} PROPERTY STRINGS "AUTO" "ON" "OFF")
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if(CURL_${_dependency} STREQUAL "AUTO")
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find_package(${_dependency})
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elseif(CURL_${_dependency})
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find_package(${_dependency} REQUIRED)
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endif()
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endmacro()
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# Convert the passed paths (or list of paths) to libpath linker options
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# and add them to CMAKE_REQUIRED_LINK_OPTIONS.
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macro(curl_required_libpaths)
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set(_libpaths "${ARGN}")
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foreach(_libpath IN LISTS _libpaths)
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list(APPEND CMAKE_REQUIRED_LINK_OPTIONS "${CMAKE_LIBRARY_PATH_FLAG}${_libpath}")
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endforeach()
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endmacro()
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