120 lines
4.4 KiB
CMake
120 lines
4.4 KiB
CMake
#.rst:
|
|
# CheckPrototypeDefinition
|
|
# ------------------------
|
|
#
|
|
# Check if the protoype we expect is correct.
|
|
#
|
|
# check_prototype_definition(FUNCTION PROTOTYPE RETURN HEADER VARIABLE)
|
|
#
|
|
# ::
|
|
#
|
|
# FUNCTION - The name of the function (used to check if prototype exists)
|
|
# PROTOTYPE- The prototype to check.
|
|
# RETURN - The return value of the function.
|
|
# HEADER - The header files required.
|
|
# VARIABLE - The variable to store the result.
|
|
# Will be created as an internal cache variable.
|
|
#
|
|
# Example:
|
|
#
|
|
# ::
|
|
#
|
|
# check_prototype_definition(getpwent_r
|
|
# "struct passwd *getpwent_r(struct passwd *src, char *buf, int buflen)"
|
|
# "NULL"
|
|
# "unistd.h;pwd.h"
|
|
# SOLARIS_GETPWENT_R)
|
|
#
|
|
# 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_LIBRARIES = list of libraries to link
|
|
# CMAKE_REQUIRED_QUIET = execute quietly without messages
|
|
|
|
#=============================================================================
|
|
# Copyright 2005-2009 Kitware, Inc.
|
|
# Copyright 2010-2011 Andreas Schneider <asn@cryptomilk.org>
|
|
#
|
|
# Distributed under the OSI-approved BSD License (the "License");
|
|
# see accompanying file Copyright.txt for details.
|
|
#
|
|
# This software is distributed WITHOUT ANY WARRANTY; without even the
|
|
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
# See the License for more information.
|
|
#=============================================================================
|
|
# (To distribute this file outside of CMake, substitute the full
|
|
# License text for the above reference.)
|
|
#
|
|
|
|
|
|
get_filename_component(__check_proto_def_dir "${CMAKE_CURRENT_LIST_FILE}" PATH)
|
|
|
|
|
|
function(CHECK_PROTOTYPE_DEFINITION _FUNCTION _PROTOTYPE _RETURN _HEADER _VARIABLE)
|
|
|
|
if (NOT DEFINED ${_VARIABLE})
|
|
set(CHECK_PROTOTYPE_DEFINITION_CONTENT "/* */\n")
|
|
|
|
set(CHECK_PROTOTYPE_DEFINITION_FLAGS ${CMAKE_REQUIRED_FLAGS})
|
|
if (CMAKE_REQUIRED_LIBRARIES)
|
|
set(CHECK_PROTOTYPE_DEFINITION_LIBS
|
|
LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
|
|
else()
|
|
set(CHECK_PROTOTYPE_DEFINITION_LIBS)
|
|
endif()
|
|
if (CMAKE_REQUIRED_INCLUDES)
|
|
set(CMAKE_SYMBOL_EXISTS_INCLUDES
|
|
"-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
|
|
else()
|
|
set(CMAKE_SYMBOL_EXISTS_INCLUDES)
|
|
endif()
|
|
|
|
foreach(_FILE ${_HEADER})
|
|
set(CHECK_PROTOTYPE_DEFINITION_HEADER
|
|
"${CHECK_PROTOTYPE_DEFINITION_HEADER}#include <${_FILE}>\n")
|
|
endforeach()
|
|
|
|
set(CHECK_PROTOTYPE_DEFINITION_SYMBOL ${_FUNCTION})
|
|
set(CHECK_PROTOTYPE_DEFINITION_PROTO ${_PROTOTYPE})
|
|
set(CHECK_PROTOTYPE_DEFINITION_RETURN ${_RETURN})
|
|
|
|
configure_file("${__check_proto_def_dir}/CheckPrototypeDefinition.c.in"
|
|
"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckPrototypeDefinition.c" @ONLY)
|
|
|
|
file(READ ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckPrototypeDefinition.c _SOURCE)
|
|
|
|
try_compile(${_VARIABLE}
|
|
${CMAKE_BINARY_DIR}
|
|
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckPrototypeDefinition.c
|
|
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
|
|
${CHECK_PROTOTYPE_DEFINITION_LIBS}
|
|
CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${CHECK_PROTOTYPE_DEFINITION_FLAGS}
|
|
"${CMAKE_SYMBOL_EXISTS_INCLUDES}"
|
|
OUTPUT_VARIABLE OUTPUT)
|
|
|
|
if (${_VARIABLE})
|
|
set(${_VARIABLE} 1 CACHE INTERNAL "Have correct prototype for ${_FUNCTION}")
|
|
if(NOT CMAKE_REQUIRED_QUIET)
|
|
message(STATUS "Checking prototype ${_FUNCTION} for ${_VARIABLE} - True")
|
|
endif()
|
|
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
|
|
"Determining if the prototype ${_FUNCTION} exists for ${_VARIABLE} passed with the following output:\n"
|
|
"${OUTPUT}\n\n")
|
|
else ()
|
|
if(NOT CMAKE_REQUIRED_QUIET)
|
|
message(STATUS "Checking prototype ${_FUNCTION} for ${_VARIABLE} - False")
|
|
endif()
|
|
set(${_VARIABLE} 0 CACHE INTERNAL "Have correct prototype for ${_FUNCTION}")
|
|
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
|
|
"Determining if the prototype ${_FUNCTION} exists for ${_VARIABLE} failed with the following output:\n"
|
|
"${OUTPUT}\n\n${_SOURCE}\n\n")
|
|
endif ()
|
|
endif()
|
|
|
|
endfunction()
|