blob: 35a4bdc56d7d6dbaaf1f0542b020a1fd14d272b2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
# - Check if the source code provided in the SOURCE argument compiles.
# CHECK_C_SOURCE_COMPILES(SOURCE VAR)
# - macro which checks if the source code compiles
# SOURCE - source code to try to compile
# VAR - variable to store size if the type exists.
#
# 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
MACRO(CHECK_C_SOURCE_COMPILES SOURCE VAR)
IF("${VAR}" MATCHES "^${VAR}$")
SET(MACRO_CHECK_FUNCTION_DEFINITIONS
"-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
IF(CMAKE_REQUIRED_LIBRARIES)
SET(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
ELSE(CMAKE_REQUIRED_LIBRARIES)
SET(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES)
ENDIF(CMAKE_REQUIRED_LIBRARIES)
IF(CMAKE_REQUIRED_INCLUDES)
SET(CHECK_C_SOURCE_COMPILES_ADD_INCLUDES
"-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
ELSE(CMAKE_REQUIRED_INCLUDES)
SET(CHECK_C_SOURCE_COMPILES_ADD_INCLUDES)
ENDIF(CMAKE_REQUIRED_INCLUDES)
FILE(WRITE "${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/src.c"
"${SOURCE}")
MESSAGE(STATUS "Performing Test ${VAR}")
TRY_COMPILE(${VAR}
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/src.c
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
CMAKE_FLAGS
"${CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES}"
"${CHECK_C_SOURCE_COMPILES_ADD_INCLUDES}"
OUTPUT_VARIABLE OUTPUT)
IF(${VAR})
SET(${VAR} 1 CACHE INTERNAL "Test ${FUNCTION}")
MESSAGE(STATUS "Performing Test ${VAR} - Success")
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeOutput.log
"Performing C SOURCE FILE Test ${VAR} succeded with the following output:\n"
"${OUTPUT}\n"
"Source file was:\n${SOURCE}\n")
ELSE(${VAR})
MESSAGE(STATUS "Performing Test ${VAR} - Failed")
SET(${VAR} "" CACHE INTERNAL "Test ${FUNCTION}")
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeError.log
"Performing C SOURCE FILE Test ${VAR} failed with the following output:\n"
"${OUTPUT}\n"
"Source file was:\n${SOURCE}\n")
ENDIF(${VAR})
ENDIF("${VAR}" MATCHES "^${VAR}$")
ENDMACRO(CHECK_C_SOURCE_COMPILES)
|
