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#
# Try to find CUDA compiler, runtime libraries, and include path.
# Once done this will define
#
# CUDA_FOUND
# CUDA_INCLUDE_PATH
# CUDA_RUNTIME_LIBRARY
# CUDA_COMPILER
#
# It will also define the following macro:
#
# WRAP_CUDA
#
IF (WIN32)
FIND_PROGRAM (CUDA_COMPILER nvcc.exe
$ENV{CUDA_BIN_PATH}
DOC "The CUDA Compiler")
ELSE(WIN32)
FIND_PROGRAM (CUDA_COMPILER nvcc
$ENV{CUDA_BIN_PATH}
/usr/local/cuda/bin
DOC "The CUDA Compiler")
ENDIF(WIN32)
IF (CUDA_COMPILER)
GET_FILENAME_COMPONENT (CUDA_COMPILER_DIR ${CUDA_COMPILER} PATH)
GET_FILENAME_COMPONENT (CUDA_COMPILER_SUPER_DIR ${CUDA_COMPILER_DIR} PATH)
ELSE (CUDA_COMPILER)
SET (CUDA_COMPILER_DIR .)
SET (CUDA_COMPILER_SUPER_DIR ..)
ENDIF (CUDA_COMPILER)
FIND_PATH (CUDA_INCLUDE_PATH cuda_runtime.h
$ENV{CUDA_INC_PATH}
${CUDA_COMPILER_SUPER_DIR}/include
${CUDA_COMPILER_DIR}
DOC "The directory where CUDA headers reside")
FIND_LIBRARY (CUDA_RUNTIME_LIBRARY
NAMES cudart
PATHS
$ENV{CUDA_LIB_PATH}
${CUDA_COMPILER_SUPER_DIR}/lib
${CUDA_COMPILER_DIR}
DOC "The CUDA runtime library")
IF (CUDA_INCLUDE_PATH AND CUDA_RUNTIME_LIBRARY)
SET (CUDA_FOUND TRUE)
ELSE (CUDA_INCLUDE_PATH AND CUDA_RUNTIME_LIBRARY)
SET (CUDA_FOUND FALSE)
ENDIF (CUDA_INCLUDE_PATH AND CUDA_RUNTIME_LIBRARY)
SET (CUDA_LIBRARIES ${CUDA_RUNTIME_LIBRARY})
MARK_AS_ADVANCED (CUDA_FOUND CUDA_COMPILER CUDA_RUNTIME_LIBRARY)
#SET(CUDA_OPTIONS "-ncfe")
SET(CUDA_OPTIONS "--host-compilation=C")
IF (CUDA_EMULATION)
SET (CUDA_OPTIONS "${CUDA_OPTIONS} -deviceemu")
ENDIF (CUDA_EMULATION)
# Get include directories.
MACRO(GET_CUDA_INC_DIRS _cuda_INC_DIRS)
SET(${_cuda_INC_DIRS})
GET_DIRECTORY_PROPERTY(_inc_DIRS INCLUDE_DIRECTORIES)
FOREACH(_current ${_inc_DIRS})
SET(${_cuda_INC_DIRS} ${${_cuda_INC_DIRS}} "-I" ${_current})
ENDFOREACH(_current ${_inc_DIRS})
SET(${_cuda_INC_DIRS} ${${_cuda_INC_DIRS}} "-I" ${CUDA_INCLUDE_PATH})
# IF (CMAKE_SYTEM_INCLUDE_PATH)
# SET(${_cuda_INC_DIRS} ${${_cuda_INC_DIRS}} "-I" ${CMAKE_SYSTEM_INCLUDE_PATH})
# ENDIF (CMAKE_SYTEM_INCLUDE_PATH)
# IF (CMAKE_INCLUDE_PATH)
# SET(${_cuda_INC_DIRS} ${${_cuda_INC_DIRS}} "-I" ${CMAKE_INCLUDE_PATH})
# ENDIF (CMAKE_INCLUDE_PATH)
ENDMACRO(GET_CUDA_INC_DIRS)
# Get file dependencies.
MACRO (GET_CUFILE_DEPENDENCIES dependencies file)
GET_FILENAME_COMPONENT(filepath ${file} PATH)
# parse file for dependencies
FILE(READ "${file}" CONTENTS)
#STRING(REGEX MATCHALL "#[ \t]*include[ \t]+[<\"][^>\"]*" DEPS "${CONTENTS}")
STRING(REGEX MATCHALL "#[ \t]*include[ \t]+\"[^\"]*" DEPS "${CONTENTS}")
SET(${dependencies})
FOREACH(DEP ${DEPS})
STRING(REGEX REPLACE "#[ \t]*include[ \t]+\"" "" DEP "${DEP}")
FIND_PATH(PATH_OF_${DEP} ${DEP}
${filepath})
IF(NOT ${PATH_OF_${DEP}} STREQUAL PATH_OF_${DEP}-NOTFOUND)
#MESSAGE("${file} : ${PATH_OF_${DEP}}/${DEP}")
SET(${dependencies} ${${dependencies}} ${PATH_OF_${DEP}}/${DEP})
ENDIF(NOT ${PATH_OF_${DEP}} STREQUAL PATH_OF_${DEP}-NOTFOUND)
ENDFOREACH(DEP)
ENDMACRO (GET_CUFILE_DEPENDENCIES)
# WRAP_CUDA(outfile ...)
MACRO (WRAP_CUDA outfiles)
GET_CUDA_INC_DIRS(cuda_includes)
#MESSAGE(${cuda_includes})
FOREACH (CUFILE ${ARGN})
GET_FILENAME_COMPONENT (CUFILE ${CUFILE} ABSOLUTE)
GET_FILENAME_COMPONENT (CFILE ${CUFILE} NAME_WE)
SET (CFILE ${CMAKE_CURRENT_BINARY_DIR}/${CFILE}.gen.c)
GET_CUFILE_DEPENDENCIES(CUDEPS ${CUFILE})
#MESSAGE("${CUDEPS}")
ADD_CUSTOM_COMMAND (
OUTPUT ${CFILE}
COMMAND ${CUDA_COMPILER}
ARGS -cuda ${cuda_includes} ${CUDA_OPTIONS} -o ${CFILE} ${CUFILE}
MAIN_DEPENDENCY ${CUFILE}
DEPENDS ${CUDEPS})
#MACRO_ADD_FILE_DEPENDENCIES(${CUFILE} ${CFILE})
SET (${outfiles} ${${outfiles}} ${CFILE})
ENDFOREACH (CUFILE)
SET_SOURCE_FILES_PROPERTIES(${outfiles} PROPERTIES GENERATED 1)
ENDMACRO (WRAP_CUDA)
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