Remove CheckIncludeFiles.cmake

We apparently vendored it for the sake of attempting to support
old cmake versions:
7aefaff298.
"This file can be dropped once the minimum version of CMake for fish is 3.11.0"

So, drop it like it's hot.
This commit is contained in:
Aaron Gyes 2022-01-19 11:38:30 -08:00
parent 9d59254a72
commit 398f3213d2

View file

@ -1,123 +0,0 @@
# Distributed under the OSI-approved BSD 3-Clause License. See full license information in
# doc_src/license.hdr or https://cmake.org/licensing for details.
#.rst:
# CheckIncludeFiles
# -----------------
#
# Provides a macro to check if a list of one or more header files can
# be included together in ``C``.
#
# .. command:: CHECK_INCLUDE_FILES
#
# ::
#
# CHECK_INCLUDE_FILES("<includes>" <variable> [LANGUAGE <language>])
#
# Check if the given ``<includes>`` list may be included together
# in a ``C`` source file and store the result in an internal cache
# entry named ``<variable>``. Specify the ``<includes>`` argument
# as a :ref:`;-list <CMake Language Lists>` of header file names.
#
# If LANGUAGE is set, the specified compiler will be used to perform the
# check. Acceptable values are C and CXX.
#
# The following variables may be set before calling this macro to modify
# the way the check is run:
#
# ``CMAKE_REQUIRED_FLAGS``
# string of compile command line flags
# ``CMAKE_REQUIRED_DEFINITIONS``
# list of macros to define (-DFOO=bar)
# ``CMAKE_REQUIRED_INCLUDES``
# list of include directories
# ``CMAKE_REQUIRED_QUIET``
# execute quietly without messages
#
# See modules :module:`CheckIncludeFile` and :module:`CheckIncludeFileCXX`
# to check for a single header file in ``C`` or ``CXX`` languages.
macro(CHECK_INCLUDE_FILES INCLUDE VARIABLE)
if(NOT DEFINED "${VARIABLE}")
set(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n")
if("x${ARGN}" STREQUAL "x")
if(CMAKE_C_COMPILER_LOADED)
set(_lang C)
elseif(CMAKE_CXX_COMPILER_LOADED)
set(_lang CXX)
else()
message(FATAL_ERROR "CHECK_INCLUDE_FILES needs either C or CXX language enabled")
endif()
elseif("x${ARGN}" MATCHES "^xLANGUAGE;([a-zA-Z]+)$")
set(_lang "${CMAKE_MATCH_1}")
else()
message(FATAL_ERROR "Unknown arguments:\n ${ARGN}\n")
endif()
if(_lang STREQUAL "C")
set(src ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CheckIncludeFiles/${VARIABLE}.c)
elseif(_lang STREQUAL "CXX")
set(src ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CheckIncludeFiles/${VARIABLE}.cpp)
else()
message(FATAL_ERROR "Unknown language:\n ${_lang}\nSupported languages: C, CXX.\n")
endif()
if(CMAKE_REQUIRED_INCLUDES)
set(CHECK_INCLUDE_FILES_INCLUDE_DIRS "-DINCLUDE_DIRECTORIES=${CMAKE_REQUIRED_INCLUDES}")
else()
set(CHECK_INCLUDE_FILES_INCLUDE_DIRS)
endif()
set(CHECK_INCLUDE_FILES_CONTENT "/* */\n")
set(MACRO_CHECK_INCLUDE_FILES_FLAGS ${CMAKE_REQUIRED_FLAGS})
foreach(FILE ${INCLUDE})
string(APPEND CMAKE_CONFIGURABLE_FILE_CONTENT
"#include <${FILE}>\n")
endforeach()
string(APPEND CMAKE_CONFIGURABLE_FILE_CONTENT
"\n\nint main(void){return 0;}\n")
configure_file("${CMAKE_ROOT}/Modules/CMakeConfigurableFile.in"
"${src}" @ONLY)
set(_INCLUDE ${INCLUDE}) # remove empty elements
if("${_INCLUDE}" MATCHES "^([^;]+);.+;([^;]+)$")
list(LENGTH _INCLUDE _INCLUDE_LEN)
set(_description "${_INCLUDE_LEN} include files ${CMAKE_MATCH_1}, ..., ${CMAKE_MATCH_2}")
elseif("${_INCLUDE}" MATCHES "^([^;]+);([^;]+)$")
set(_description "include files ${CMAKE_MATCH_1}, ${CMAKE_MATCH_2}")
else()
set(_description "include file ${_INCLUDE}")
endif()
if(NOT CMAKE_REQUIRED_QUIET)
message(STATUS "Looking for ${_description}")
endif()
try_compile(${VARIABLE}
${CMAKE_BINARY_DIR}
${src}
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
CMAKE_FLAGS
-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILES_FLAGS}
"${CHECK_INCLUDE_FILES_INCLUDE_DIRS}"
OUTPUT_VARIABLE OUTPUT)
if(${VARIABLE})
if(NOT CMAKE_REQUIRED_QUIET)
message(STATUS "Looking for ${_description} - found")
endif()
set(${VARIABLE} 1 CACHE INTERNAL "Have include ${INCLUDE}")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Determining if files ${INCLUDE} "
"exist passed with the following output:\n"
"${OUTPUT}\n\n")
else()
if(NOT CMAKE_REQUIRED_QUIET)
message(STATUS "Looking for ${_description} - not found")
endif()
set(${VARIABLE} "" CACHE INTERNAL "Have includes ${INCLUDE}")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Determining if files ${INCLUDE} "
"exist failed with the following output:\n"
"${OUTPUT}\nSource:\n${CMAKE_CONFIGURABLE_FILE_CONTENT}\n")
endif()
endif()
endmacro()