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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# SPDX-License-Identifier: curl
#
###########################################################################
#File defines convenience macros for available feature testing
# This macro checks if the symbol exists in the library and if it
# does, it prepends library to the list. It is intended to be called
# multiple times with a sequence of possibly dependent libraries in
# order of least-to-most-dependent. Some libraries depend on others
# to link correctly.
macro(check_library_exists_concat LIBRARY SYMBOL VARIABLE)
check_library_exists("${LIBRARY};${CURL_LIBS}" ${SYMBOL} "${CMAKE_LIBRARY_PATH}"
${VARIABLE})
if(${VARIABLE})
set(CURL_LIBS ${LIBRARY} ${CURL_LIBS})
endif()
endmacro()
# Check if header file exists and add it to the list.
# This macro is intended to be called multiple times with a sequence of
# possibly dependent header files. Some headers depend on others to be
# compiled correctly.
macro(check_include_file_concat FILE VARIABLE)
check_include_files("${CURL_INCLUDES};${FILE}" ${VARIABLE})
if(${VARIABLE})
set(CURL_INCLUDES ${CURL_INCLUDES} ${FILE})
set(CURL_TEST_DEFINES "${CURL_TEST_DEFINES} -D${VARIABLE}")
endif()
endmacro()
# For other curl specific tests, use this macro.
macro(curl_internal_test CURL_TEST)
if(NOT DEFINED "${CURL_TEST}")
set(MACRO_CHECK_FUNCTION_DEFINITIONS
"-D${CURL_TEST} ${CURL_TEST_DEFINES} ${CMAKE_REQUIRED_FLAGS}")
if(CMAKE_REQUIRED_LIBRARIES)
set(CURL_TEST_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
endif()
message(STATUS "Performing Curl Test ${CURL_TEST}")
try_compile(${CURL_TEST}
${CMAKE_BINARY_DIR}
${CMAKE_CURRENT_SOURCE_DIR}/CMake/CurlTests.c
CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
"${CURL_TEST_ADD_LIBRARIES}"
OUTPUT_VARIABLE OUTPUT)
if(${CURL_TEST})
set(${CURL_TEST} 1 CACHE INTERNAL "Curl test ${FUNCTION}")
message(STATUS "Performing Curl Test ${CURL_TEST} - Success")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Performing Curl Test ${CURL_TEST} passed with the following output:\n"
"${OUTPUT}\n")
else()
message(STATUS "Performing Curl Test ${CURL_TEST} - Failed")
set(${CURL_TEST} "" CACHE INTERNAL "Curl test ${FUNCTION}")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Performing Curl Test ${CURL_TEST} failed with the following output:\n"
"${OUTPUT}\n")
endif()
endif()
endmacro()
macro(curl_nroff_check)
find_program(NROFF NAMES gnroff nroff)
if(NROFF)
# Need a way to write to stdin, this will do
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/nroff-input.txt" "test")
# Tests for a valid nroff option to generate a manpage
foreach(_MANOPT "-man" "-mandoc")
execute_process(COMMAND "${NROFF}" ${_MANOPT}
OUTPUT_VARIABLE NROFF_MANOPT_OUTPUT
INPUT_FILE "${CMAKE_CURRENT_BINARY_DIR}/nroff-input.txt"
ERROR_QUIET)
# Save the option if it was valid
if(NROFF_MANOPT_OUTPUT)
message("Found *nroff option: -- ${_MANOPT}")
set(NROFF_MANOPT ${_MANOPT})
set(NROFF_USEFUL ON)
break()
endif()
endforeach()
# No need for the temporary file
file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/nroff-input.txt")
if(NOT NROFF_USEFUL)
message(WARNING "Found no *nroff option to get plaintext from man pages")
endif()
else()
message(WARNING "Found no *nroff program")
endif()
endmacro()
macro(optional_dependency DEPENDENCY)
set(CURL_${DEPENDENCY} AUTO CACHE STRING "Build curl with ${DEPENDENCY} support (AUTO, ON or OFF)")
set_property(CACHE CURL_${DEPENDENCY} PROPERTY STRINGS AUTO ON OFF)
if(CURL_${DEPENDENCY} STREQUAL AUTO)
find_package(${DEPENDENCY})
elseif(CURL_${DEPENDENCY})
find_package(${DEPENDENCY} REQUIRED)
endif()
endmacro()
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