64 lines
2.5 KiB
CMake
64 lines
2.5 KiB
CMake
# - Check if the include file exists.
|
|
# CHECK_INCLUDE_FILE(INCLUDE VARIABLE)
|
|
# - macro which checks the include file exists.
|
|
# INCLUDE - name of include file
|
|
# VARIABLE - variable to return result
|
|
#
|
|
# an optional third argument is the CFlags to add to the compile line
|
|
# or you can use CMAKE_REQUIRED_FLAGS
|
|
#
|
|
# 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_FILE INCLUDE VARIABLE)
|
|
IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
|
|
IF(CMAKE_REQUIRED_INCLUDES)
|
|
SET(CHECK_INCLUDE_FILE_C_INCLUDE_DIRS "-DINCLUDE_DIRECTORIES=${CMAKE_REQUIRED_INCLUDES}")
|
|
ELSE(CMAKE_REQUIRED_INCLUDES)
|
|
SET(CHECK_INCLUDE_FILE_C_INCLUDE_DIRS)
|
|
ENDIF(CMAKE_REQUIRED_INCLUDES)
|
|
SET(MACRO_CHECK_INCLUDE_FILE_FLAGS ${CMAKE_REQUIRED_FLAGS})
|
|
SET(CHECK_INCLUDE_FILE_VAR ${INCLUDE})
|
|
CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CheckIncludeFile.c.in
|
|
${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckIncludeFile.c IMMEDIATE)
|
|
MESSAGE(STATUS "Looking for ${INCLUDE}")
|
|
IF(${ARGC} EQUAL 3)
|
|
SET(CMAKE_C_FLAGS_SAVE ${CMAKE_C_FLAGS})
|
|
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${ARGV2}")
|
|
ENDIF(${ARGC} EQUAL 3)
|
|
|
|
TRY_COMPILE(${VARIABLE}
|
|
${CMAKE_BINARY_DIR}
|
|
${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckIncludeFile.c
|
|
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
|
|
CMAKE_FLAGS
|
|
-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILE_FLAGS}
|
|
"${CHECK_INCLUDE_FILE_C_INCLUDE_DIRS}"
|
|
OUTPUT_VARIABLE OUTPUT)
|
|
|
|
IF(${ARGC} EQUAL 3)
|
|
SET(CMAKE_C_FLAGS ${CMAKE_C_FLAGS_SAVE})
|
|
ENDIF(${ARGC} EQUAL 3)
|
|
|
|
IF(${VARIABLE})
|
|
MESSAGE(STATUS "Looking for ${INCLUDE} - found")
|
|
SET(${VARIABLE} 1 CACHE INTERNAL "Have include ${INCLUDE}")
|
|
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log
|
|
"Determining if the include file ${INCLUDE} "
|
|
"exists passed with the following output:\n"
|
|
"${OUTPUT}\n\n")
|
|
ELSE(${VARIABLE})
|
|
MESSAGE(STATUS "Looking for ${INCLUDE} - not found")
|
|
SET(${VARIABLE} "" CACHE INTERNAL "Have include ${INCLUDE}")
|
|
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
|
|
"Determining if the include file ${INCLUDE} "
|
|
"exists failed with the following output:\n"
|
|
"${OUTPUT}\n\n")
|
|
ENDIF(${VARIABLE})
|
|
ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
|
|
ENDMACRO(CHECK_INCLUDE_FILE)
|