58 lines
2.4 KiB
CMake
58 lines
2.4 KiB
CMake
|
# - Script to get the value of a preprocessor definition that is a string,
|
||
|
|
# after including the given files
|
||
|
|
# Requires that the associated source file be present: GetDefineString.cpp.in.
|
||
|
|
#
|
||
|
|
# get_define_string(NAME <define_name> [INCLUDES <files>] RESULT <variable>
|
||
|
|
# [FLAGS <compile-flags>]
|
||
|
|
# [INCLUDE_DIRS <include-dirs>]
|
||
|
|
# [DEFINES] <-Ddefinitions>)
|
||
|
|
# Original Author:
|
||
|
|
# 2014 Ryan Pavlik <ryan@sensics.com> <abiryan@ryand.net>
|
||
|
|
#
|
||
|
|
# Copyright Sensics, Inc. 2014.
|
||
|
|
# Distributed under the Boost Software License, Version 1.0.
|
||
|
|
# (See accompanying file LICENSE_1_0.txt or copy at
|
||
|
|
# http://www.boost.org/LICENSE_1_0.txt)
|
||
|
|
|
||
|
|
|
||
|
|
get_filename_component(_getdefinestring_moddir "${CMAKE_CURRENT_LIST_FILE}" PATH)
|
||
|
|
|
||
|
|
function(get_define_string)
|
||
|
|
include(CMakeParseArguments)
|
||
|
|
cmake_parse_arguments(_gds "" "NAME;RESULT" "INCLUDES;FLAGS;INCLUDE_DIRS;DEFINES" ${ARGN})
|
||
|
|
if(NOT _gds_NAME)
|
||
|
|
message(FATAL_ERROR "Must pass NAME to get_define_string!")
|
||
|
|
endif()
|
||
|
|
if(NOT _gds_RESULT)
|
||
|
|
message(FATAL_ERROR "Must pass RESULT to get_define_string!")
|
||
|
|
endif()
|
||
|
|
if(NOT DEFINED "${_gds_RESULT}_CHECKED" OR (NOT "${${_gds_RESULT}_CHECKED}" STREQUAL "${ARGN}"))
|
||
|
|
set(${_gds_RESULT}_CHECKED "${ARGN}" CACHE INTERNAL "" FORCE)
|
||
|
|
set(GET_DEFINE_STRING_NAME ${_gds_NAME})
|
||
|
|
set(_INCLUDES)
|
||
|
|
if(_gds_INCLUDE_DIRS)
|
||
|
|
set(_INCLUDES "-DINCLUDE_DIRECTORIES:STRING=${_gds_INCLUDE_DIRS}")
|
||
|
|
endif()
|
||
|
|
set(GET_DEFINE_STRING_INCLUDES)
|
||
|
|
foreach(_file ${_gds_INCLUDES})
|
||
|
|
set(GET_DEFINE_STRING_INCLUDES "${GET_DEFINE_STRING_INCLUDES}#include <${_file}>\n")
|
||
|
|
endforeach()
|
||
|
|
set(_src "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/GetDefineString${_gds_RESULT}.cpp")
|
||
|
|
set(_out "${CMAKE_CURRENT_BINARY_DIR}/GetDefineString${_gds_RESULT}.out")
|
||
|
|
configure_file("${_getdefinestring_moddir}/GetDefineString.cpp.in" "${_src}")
|
||
|
|
try_compile(_result "${CMAKE_CURRENT_BINARY_DIR}" SOURCES "${_src}"
|
||
|
|
CMAKE_FLAGS ${_INCLUDES}
|
||
|
|
COMPILE_DEFINITIONS ${_gds_DEFINES}
|
||
|
|
OUTPUT_VARIABLE OUTPUT
|
||
|
|
COPY_FILE "${_out}")
|
||
|
|
if(_result)
|
||
|
|
file(STRINGS "${_out}" _result_string REGEX "INFO:[A-Za-z0-9_]+\\[[^]]*\\]")
|
||
|
|
if("${_result_string}" MATCHES "INFO:define\\[([^]\"]*)\\]")
|
||
|
|
set(${_gds_RESULT}_CACHED "${CMAKE_MATCH_1}" CACHE INTERNAL "" FORCE)
|
||
|
|
endif()
|
||
|
|
else()
|
||
|
|
set(${_gds_RESULT}_CACHED NOTFOUND)
|
||
|
|
endif()
|
||
|
|
endif()
|
||
|
|
set(${_gds_RESULT} ${${_gds_RESULT}_CACHED} PARENT_SCOPE)
|
||
|
|
endfunction()
|