ENH: Made Check* modules more consistent and well documented. Added CMAKE_REQUIRED_DEFINITIONS option.
This commit is contained in:
Brad King
parent
f8a8e88a08
commit
f0a1da00c1
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@ -3,10 +3,14 @@
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# - macro which checks if the source code compiles
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# SOURCE - source code to try to compile
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# VAR - variable to store size if the type exists.
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# Checks the following optional VARIABLES (not arguments)
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# CMAKE_REQUIRED_LIBRARIES - Link to extra libraries
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# CMAKE_REQUIRED_FLAGS - Extra flags to C compiler
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#
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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_INCLUDES = list of include directories
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# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
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MACRO(CHECK_C_SOURCE_COMPILES SOURCE VAR)
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IF("${VAR}" MATCHES "^${VAR}$")
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@ -31,6 +35,7 @@ MACRO(CHECK_C_SOURCE_COMPILES SOURCE VAR)
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TRY_COMPILE(${VAR}
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/src.c
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
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CMAKE_FLAGS
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"${CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES}"
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"${CHECK_C_SOURCE_COMPILES_ADD_INCLUDES}"
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@ -3,10 +3,14 @@
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# - macro which checks if the source code compiles\
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# SOURCE - source code to try to compile
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# VAR - variable to store size if the type exists.
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# Checks the following optional VARIABLES (not arguments)
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# CMAKE_REQUIRED_LIBRARIES - Link to extra libraries
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# CMAKE_REQUIRED_FLAGS - Extra flags to C compiler
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#
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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_INCLUDES = list of include directories
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# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
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MACRO(CHECK_CXX_SOURCE_COMPILES SOURCE VAR)
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IF("${VAR}" MATCHES "^${VAR}$")
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@ -31,6 +35,7 @@ MACRO(CHECK_CXX_SOURCE_COMPILES SOURCE VAR)
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TRY_COMPILE(${VAR}
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/src.cxx
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
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CMAKE_FLAGS
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"${CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES}"
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"${CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES}"
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@ -3,10 +3,14 @@
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# - macro which checks if the function exists
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# FUNCTION - the name of the function
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# VARIABLE - variable to store the result
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# If CMAKE_REQUIRED_FLAGS is set then those flags will be passed into the
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# compile of the program likewise if CMAKE_REQUIRED_LIBRARIES is set then
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# those libraries will be linked against the test program
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#
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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_INCLUDES = list of include directories
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# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
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MACRO(CHECK_FUNCTION_EXISTS FUNCTION VARIABLE)
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IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
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@ -16,12 +20,22 @@ MACRO(CHECK_FUNCTION_EXISTS FUNCTION VARIABLE)
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IF(CMAKE_REQUIRED_LIBRARIES)
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SET(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES
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"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
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ELSE(CMAKE_REQUIRED_LIBRARIES)
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SET(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES)
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ENDIF(CMAKE_REQUIRED_LIBRARIES)
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IF(CMAKE_REQUIRED_INCLUDES)
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SET(CHECK_FUNCTION_EXISTS_ADD_INCLUDES
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"-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
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ELSE(CMAKE_REQUIRED_INCLUDES)
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SET(CHECK_FUNCTION_EXISTS_ADD_INCLUDES)
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ENDIF(CMAKE_REQUIRED_INCLUDES)
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TRY_COMPILE(${VARIABLE}
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${CMAKE_BINARY_DIR}
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${CMAKE_ROOT}/Modules/CheckFunctionExists.c
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
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CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
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"${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}"
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"${CHECK_FUNCTION_EXISTS_ADD_INCLUDES}"
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OUTPUT_VARIABLE OUTPUT)
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IF(${VARIABLE})
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SET(${VARIABLE} 1 CACHE INTERNAL "Have function ${FUNCTION}")
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@ -7,8 +7,20 @@
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# an optional third argument is the CFlags to add to the compile line
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# or you can use CMAKE_REQUIRED_FLAGS
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#
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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_INCLUDES = list of include directories
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#
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MACRO(CHECK_INCLUDE_FILE INCLUDE VARIABLE)
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IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
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IF(CMAKE_REQUIRED_INCLUDES)
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SET(CHECK_INCLUDE_FILE_C_INCLUDE_DIRS "-DINCLUDE_DIRECTORIES=${CMAKE_REQUIRED_INCLUDES}")
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ELSE(CMAKE_REQUIRED_INCLUDES)
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SET(CHECK_INCLUDE_FILE_C_INCLUDE_DIRS)
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ENDIF(CMAKE_REQUIRED_INCLUDES)
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SET(MACRO_CHECK_INCLUDE_FILE_FLAGS ${CMAKE_REQUIRED_FLAGS})
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SET(CHECK_INCLUDE_FILE_VAR ${INCLUDE})
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CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CheckIncludeFile.c.in
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@ -22,8 +34,10 @@ MACRO(CHECK_INCLUDE_FILE INCLUDE VARIABLE)
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TRY_COMPILE(${VARIABLE}
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckIncludeFile.c
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
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CMAKE_FLAGS
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-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILE_FLAGS}
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"${CHECK_INCLUDE_FILE_C_INCLUDE_DIRS}"
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OUTPUT_VARIABLE OUTPUT)
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IF(${ARGC} EQUAL 3)
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@ -7,8 +7,20 @@
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# An optional third argument is the CFlags to add to the compile line
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# or you can use CMAKE_REQUIRED_FLAGS.
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#
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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_INCLUDES = list of include directories
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#
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MACRO(CHECK_INCLUDE_FILE_CXX INCLUDE VARIABLE)
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IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
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IF(CMAKE_REQUIRED_INCLUDES)
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SET(CHECK_INCLUDE_FILE_CXX_INCLUDE_DIRS "-DINCLUDE_DIRECTORIES=${CMAKE_REQUIRED_INCLUDES}")
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ELSE(CMAKE_REQUIRED_INCLUDES)
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SET(CHECK_INCLUDE_FILE_CXX_INCLUDE_DIRS)
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ENDIF(CMAKE_REQUIRED_INCLUDES)
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SET(MACRO_CHECK_INCLUDE_FILE_FLAGS ${CMAKE_REQUIRED_FLAGS})
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SET(CHECK_INCLUDE_FILE_VAR ${INCLUDE})
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CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CheckIncludeFile.cxx.in
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@ -22,8 +34,10 @@ MACRO(CHECK_INCLUDE_FILE_CXX INCLUDE VARIABLE)
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TRY_COMPILE(${VARIABLE}
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckIncludeFile.cxx
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
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CMAKE_FLAGS
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-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILE_FLAGS}
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"${CHECK_INCLUDE_FILE_CXX_INCLUDE_DIRS}"
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OUTPUT_VARIABLE OUTPUT)
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IF(${ARGC} EQUAL 3)
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@ -5,10 +5,12 @@
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# INCLUDE - list of files to include
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# VARIABLE - variable to return result
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#
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# If CMAKE_REQUIRED_FLAGS is set then those flags will be passed into the
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# compile of the program
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# If CMAKE_REQUIRED_INCLUDES is set then those directories will be passed
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# as include paths to the compiler
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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_INCLUDES = list of include directories
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MACRO(CHECK_INCLUDE_FILES INCLUDE VARIABLE)
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IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
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@ -32,6 +34,7 @@ MACRO(CHECK_INCLUDE_FILES INCLUDE VARIABLE)
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TRY_COMPILE(${VARIABLE}
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckIncludeFiles.c
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
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CMAKE_FLAGS
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-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILES_FLAGS}
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"${CHECK_INCLUDE_FILES_INCLUDE_DIRS}"
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@ -6,10 +6,12 @@
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# LOCATION - location where the library should be found
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# VARIABLE - variable to store the result
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#
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# If CMAKE_REQUIRED_FLAGS is set then those flags will be passed into the
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# compile of the program likewise if CMAKE_REQUIRED_LIBRARIES is set then
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# those libraries will be linked against the test program
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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
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MACRO(CHECK_LIBRARY_EXISTS LIBRARY FUNCTION LOCATION VARIABLE)
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IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
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@ -20,10 +22,13 @@ MACRO(CHECK_LIBRARY_EXISTS LIBRARY FUNCTION LOCATION VARIABLE)
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IF(CMAKE_REQUIRED_LIBRARIES)
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SET(CHECK_LIBRARY_EXISTS_LIBRARIES
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${CHECK_LIBRARY_EXISTS_LIBRARIES} ${CMAKE_REQUIRED_LIBRARIES})
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ELSE(CMAKE_REQUIRED_LIBRARIES)
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SET(CHECK_LIBRARY_EXISTS_LIBRARIES)
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ENDIF(CMAKE_REQUIRED_LIBRARIES)
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TRY_COMPILE(${VARIABLE}
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${CMAKE_BINARY_DIR}
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${CMAKE_ROOT}/Modules/CheckFunctionExists.c
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
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CMAKE_FLAGS
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-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_LIBRARY_EXISTS_DEFINITION}
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-DLINK_DIRECTORIES:STRING=${LOCATION}
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@ -5,10 +5,13 @@
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# FILES - include files to check
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# VARIABLE - variable to return result
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#
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# If CMAKE_REQUIRED_FLAGS is set then those flags will be passed into the
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# compile of the program likewise if CMAKE_REQUIRED_LIBRARIES is set then
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# those libraries will be linked against the test program
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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_INCLUDES = list of include directories
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# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
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MACRO(CHECK_SYMBOL_EXISTS SYMBOL FILES VARIABLE)
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IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
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@ -40,6 +43,7 @@ MACRO(CHECK_SYMBOL_EXISTS SYMBOL FILES VARIABLE)
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TRY_COMPILE(${VARIABLE}
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckSymbolExists.c
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
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CMAKE_FLAGS
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-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_SYMBOL_EXISTS_FLAGS}
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"${CHECK_SYMBOL_EXISTS_LIBS}"
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@ -3,11 +3,16 @@
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#
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# VAR - the name of the variable
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# VARIABLE - variable to store the result
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# If CMAKE_REQUIRED_FLAGS is set then those flags will be passed into the
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# compile of the program likewise if CMAKE_REQUIRED_LIBRARIES is set then
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# those libraries will be linked against the test program.
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#
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# This macro is only for C variables.
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#
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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
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MACRO(CHECK_VARIABLE_EXISTS VAR VARIABLE)
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IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
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SET(MACRO_CHECK_VARIABLE_DEFINITIONS
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@ -16,10 +21,13 @@ MACRO(CHECK_VARIABLE_EXISTS VAR VARIABLE)
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IF(CMAKE_REQUIRED_LIBRARIES)
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SET(CHECK_VARIABLE_EXISTS_ADD_LIBRARIES
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"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
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ELSE(CMAKE_REQUIRED_LIBRARIES)
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SET(CHECK_VARIABLE_EXISTS_ADD_LIBRARIES)
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ENDIF(CMAKE_REQUIRED_LIBRARIES)
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TRY_COMPILE(${VARIABLE}
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${CMAKE_BINARY_DIR}
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${CMAKE_ROOT}/Modules/CheckVariableExists.c
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
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CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_VARIABLE_DEFINITIONS}
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"${CHECK_VARIABLE_EXISTS_ADD_LIBRARIES}"
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OUTPUT_VARIABLE OUTPUT)
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