| # - Check if the files can be included |
| # |
| # CHECK_INCLUDE_FILES(INCLUDE VARIABLE) |
| # |
| # INCLUDE - list of files to include |
| # VARIABLE - variable to return result |
| # |
| # 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 |
| |
| MACRO(CHECK_INCLUDE_FILES INCLUDE VARIABLE) |
| IF("${VARIABLE}" MATCHES "^${VARIABLE}$") |
| SET(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n") |
| IF(CMAKE_REQUIRED_INCLUDES) |
| SET(CHECK_INCLUDE_FILES_INCLUDE_DIRS "-DINCLUDE_DIRECTORIES=${CMAKE_REQUIRED_INCLUDES}") |
| ELSE(CMAKE_REQUIRED_INCLUDES) |
| SET(CHECK_INCLUDE_FILES_INCLUDE_DIRS) |
| ENDIF(CMAKE_REQUIRED_INCLUDES) |
| SET(CHECK_INCLUDE_FILES_CONTENT "/* */\n") |
| SET(MACRO_CHECK_INCLUDE_FILES_FLAGS ${CMAKE_REQUIRED_FLAGS}) |
| FOREACH(FILE ${INCLUDE}) |
| SET(CMAKE_CONFIGURABLE_FILE_CONTENT |
| "${CMAKE_CONFIGURABLE_FILE_CONTENT}#include <${FILE}>\n") |
| ENDFOREACH(FILE) |
| SET(CMAKE_CONFIGURABLE_FILE_CONTENT |
| "${CMAKE_CONFIGURABLE_FILE_CONTENT}\n\nint main(){return 0;}\n") |
| CONFIGURE_FILE("${CMAKE_ROOT}/Modules/CMakeConfigurableFile.in" |
| "${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckIncludeFiles.c" @ONLY IMMEDIATE) |
| |
| MESSAGE(STATUS "Looking for include files ${VARIABLE}") |
| TRY_COMPILE(${VARIABLE} |
| ${CMAKE_BINARY_DIR} |
| ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckIncludeFiles.c |
| 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}) |
| MESSAGE(STATUS "Looking for include files ${VARIABLE} - found") |
| SET(${VARIABLE} 1 CACHE INTERNAL "Have include ${VARIABLE}") |
| FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeFiles/CMakeOutput.log |
| "Determining if files ${INCLUDE} " |
| "exist passed with the following output:\n" |
| "${OUTPUT}\n\n") |
| ELSE(${VARIABLE}) |
| MESSAGE(STATUS "Looking for include files ${VARIABLE} - not found.") |
| SET(${VARIABLE} "" CACHE INTERNAL "Have includes ${VARIABLE}") |
| FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log |
| "Determining if files ${INCLUDE} " |
| "exist failed with the following output:\n" |
| "${OUTPUT}\nSource:\n${CMAKE_CONFIGURABLE_FILE_CONTENT}\n") |
| ENDIF(${VARIABLE}) |
| ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$") |
| ENDMACRO(CHECK_INCLUDE_FILES) |