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More CMake samples.

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This commit is contained in:
Lars Brinkhoff
2015-01-09 14:54:44 +01:00
parent 05a98be1e5
commit 94f7dd2238
5 changed files with 195 additions and 0 deletions
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samples/CMake/sample5.cmake Normal file
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# - Check if the STDCALL function exists.
# This works for non-cdecl functions (kernel32 functions, for example)
# CHECK_STDCALL_FUNCTION_EXISTS(FUNCTION FUNCTION_DUMMY_ARGS VARIABLE)
# - macro which checks if the stdcall function exists
# FUNCTION_DECLARATION - the definition of the function ( e.g.: Sleep(500) )
# VARIABLE - variable to store the 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
# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
# CMAKE_EXTRA_INCLUDE_FILES = list of extra includes to check in
MACRO(CHECK_STDCALL_FUNCTION_EXISTS FUNCTION_DECLARATION VARIABLE)
IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
#get includes
SET(CHECK_STDCALL_FUNCTION_PREMAIN)
FOREACH(def ${CMAKE_EXTRA_INCLUDE_FILES})
SET(CHECK_STDCALL_FUNCTION_PREMAIN "${CHECK_STDCALL_FUNCTION_PREMAIN}#include \"${def}\"\n")
ENDFOREACH(def)
#add some default includes
IF ( HAVE_WINDOWS_H )
SET(CHECK_STDCALL_FUNCTION_PREMAIN "${CHECK_STDCALL_FUNCTION_PREMAIN}#include \"windows.h\"\n")
ENDIF ( HAVE_WINDOWS_H )
IF ( HAVE_UNISTD_H )
SET(CHECK_STDCALL_FUNCTION_PREMAIN "${CHECK_STDCALL_FUNCTION_PREMAIN}#include \"unistd.h\"\n")
ENDIF ( HAVE_UNISTD_H )
IF ( HAVE_DIRECT_H )
SET(CHECK_STDCALL_FUNCTION_PREMAIN "${CHECK_STDCALL_FUNCTION_PREMAIN}#include \"direct.h\"\n")
ENDIF ( HAVE_DIRECT_H )
IF ( HAVE_IO_H )
SET(CHECK_STDCALL_FUNCTION_PREMAIN "${CHECK_STDCALL_FUNCTION_PREMAIN}#include \"io.h\"\n")
ENDIF ( HAVE_IO_H )
IF ( HAVE_SYS_TIMEB_H )
SET(CHECK_STDCALL_FUNCTION_PREMAIN "${CHECK_STDCALL_FUNCTION_PREMAIN}#include \"sys/timeb.h\"\n")
ENDIF ( HAVE_SYS_TIMEB_H )
STRING(REGEX REPLACE "(\\(.*\\))" "" CHECK_STDCALL_FUNCTION_EXISTS_FUNCTION ${FUNCTION_DECLARATION} )
SET(MACRO_CHECK_STDCALL_FUNCTION_DEFINITIONS "${CMAKE_REQUIRED_FLAGS}")
MESSAGE(STATUS "Looking for ${CHECK_STDCALL_FUNCTION_EXISTS_FUNCTION}")
IF(CMAKE_REQUIRED_LIBRARIES)
SET(CHECK_STDCALL_FUNCTION_EXISTS_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
ELSE(CMAKE_REQUIRED_LIBRARIES)
SET(CHECK_STDCALL_FUNCTION_EXISTS_ADD_LIBRARIES)
ENDIF(CMAKE_REQUIRED_LIBRARIES)
IF(CMAKE_REQUIRED_INCLUDES)
SET(CHECK_STDCALL_FUNCTION_EXISTS_ADD_INCLUDES
"-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
ELSE(CMAKE_REQUIRED_INCLUDES)
SET(CHECK_STDCALL_FUNCTION_EXISTS_ADD_INCLUDES)
ENDIF(CMAKE_REQUIRED_INCLUDES)
SET(CHECK_STDCALL_FUNCTION_DECLARATION ${FUNCTION_DECLARATION})
CONFIGURE_FILE("${clucene-shared_SOURCE_DIR}/cmake/CheckStdCallFunctionExists.cpp.in"
"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckStdCallFunctionExists.cpp" IMMEDIATE @ONLY)
FILE(READ "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckStdCallFunctionExists.cpp"
CHECK_STDCALL_FUNCTION_CONTENT)
TRY_COMPILE(${VARIABLE}
${CMAKE_BINARY_DIR}
"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckStdCallFunctionExists.cpp"
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_STDCALL_FUNCTION_DEFINITIONS}
"${CHECK_STDCALL_FUNCTION_EXISTS_ADD_LIBRARIES}"
"${CHECK_STDCALL_FUNCTION_EXISTS_ADD_INCLUDES}"
OUTPUT_VARIABLE OUTPUT)
IF(${VARIABLE})
SET(${VARIABLE} 1 CACHE INTERNAL "Have function ${FUNCTION_DECLARATION}")
MESSAGE(STATUS "Looking for ${FUNCTION_DECLARATION} - found")
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Determining if the stdcall function ${FUNCTION_DECLARATION} exists passed with the following output:\n"
"${OUTPUT}\nCheckStdCallFunctionExists.cpp:\n${CHECK_STDCALL_FUNCTION_CONTENT}\n\n")
ELSE(${VARIABLE})
MESSAGE(STATUS "Looking for ${FUNCTION_DECLARATION} - not found")
SET(${VARIABLE} "" CACHE INTERNAL "Have function ${FUNCTION_DECLARATION}")
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Determining if the stdcall function ${FUNCTION_DECLARATION} exists failed with the following output:\n"
"${OUTPUT}\nCheckStdCallFunctionExists.cpp:\n${CHECK_STDCALL_FUNCTION_CONTENT}\n\n")
ENDIF(${VARIABLE})
ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
ENDMACRO(CHECK_STDCALL_FUNCTION_EXISTS)