35 lines
1.4 KiB
CMake
35 lines
1.4 KiB
CMake
#
|
|
# Check if the include file exists.
|
|
#
|
|
# CHECK_INCLUDE_FILE - macro which checks the include file exists.
|
|
# INCLUDE - name of include file
|
|
# VARIABLE - variable to return result
|
|
#
|
|
|
|
MACRO(CHECK_INCLUDE_FILE INCLUDE VARIABLE)
|
|
IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
|
|
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}/CMakeTmp/CheckIncludeFile.c IMMEDIATE)
|
|
MESSAGE(STATUS "Looking for ${INCLUDE}")
|
|
TRY_COMPILE(${VARIABLE}
|
|
${CMAKE_BINARY_DIR}
|
|
${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFile.c
|
|
CMAKE_FLAGS
|
|
-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILE_FLAGS}
|
|
OUTPUT_VARIABLE OUTPUT)
|
|
IF(${VARIABLE})
|
|
MESSAGE(STATUS "Looking for ${INCLUDE} - found")
|
|
SET(${VARIABLE} 1 CACHE INTERNAL "Have include ${INCLUDE}")
|
|
ELSE(${VARIABLE})
|
|
MESSAGE(STATUS "Looking for ${INCLUDE} - not found.")
|
|
SET(${VARIABLE} "" CACHE INTERNAL "Have include ${INCLUDE}")
|
|
WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeError.log
|
|
"Determining if the include file ${INCLUDE} "
|
|
"exists failed with the following output:\n"
|
|
"${OUTPUT}\n" APPEND)
|
|
ENDIF(${VARIABLE})
|
|
ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
|
|
ENDMACRO(CHECK_INCLUDE_FILE)
|