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## FFTW can be compiled and subsequently linked against
## various data types.
## There is a single set of include files, and then muttiple libraries,
## One for each type. I.e. libfftw.a-->double, libfftwf.a-->float
## The following logic belongs in the individual package
## MARK_AS_ADVANCED(USE_FFTWD)
## OPTION(USE_FFTWD "Use double precision FFTW if found" ON)
## MARK_AS_ADVANCED(USE_FFTWF)
## OPTION(USE_FFTWF "Use single precision FFTW if found" ON)
IF(USE_FFTWD OR USE_FFTWF)
SET(FFTW_INC_SEARCHPATH
/sw/include
/usr/include
/usr/local/include
/usr/include/fftw
/usr/local/include/fftw
)
FIND_PATH(FFTW_INCLUDE_PATH fftw3.h ${FFTW_INC_SEARCHPATH})
IF(FFTW_INCLUDE_PATH)
SET(FFTW_INCLUDE ${FFTW_INCLUDE_PATH})
ENDIF (FFTW_INCLUDE_PATH)
IF(FFTW_INCLUDE)
INCLUDE_DIRECTORIES( ${FFTW_INCLUDE})
ENDIF(FFTW_INCLUDE)
GET_FILENAME_COMPONENT(FFTW_INSTALL_BASE_PATH ${FFTW_INCLUDE_PATH} PATH)
SET(FFTW_LIB_SEARCHPATH
${FFTW_INSTALL_BASE_PATH}/lib
/usr/lib/fftw
/usr/local/lib/fftw
)
IF(USE_FFTWD)
MARK_AS_ADVANCED(FFTWD_LIB)
# OPTION(FFTWD_LIB "The full path to the fftw3 library (including the library)" )
FIND_LIBRARY(FFTWD_LIB fftw3 ${FFTW_LIB_SEARCHPATH}) #Double Precision Lib
FIND_LIBRARY(FFTWD_THREADS_LIB fftw3_threads ${FFTW_LIB_SEARCHPATH}) #Double Precision Lib only if compiled with threads support
IF(FFTWD_LIB)
SET(FFTWD_FOUND 1)
IF(FFTWD_THREADS_LIB)
SET(FFTWD_LIB ${FFTWD_LIB} ${FFTWD_THREADS_LIB} )
ENDIF(FFTWD_THREADS_LIB)
ENDIF(FFTWD_LIB)
ENDIF(USE_FFTWD)
IF(USE_FFTWF)
MARK_AS_ADVANCED(FFTWF_LIB)
# OPTION(FFTWF_LIB "The full path to the fftw3f library (including the library)" )
FIND_LIBRARY(FFTWF_LIB fftw3f ${FFTW_LIB_SEARCHPATH}) #Single Precision Lib
FIND_LIBRARY(FFTWF_THREADS_LIB fftw3f_threads ${FFTW_LIB_SEARCHPATH}) #Single Precision Lib only if compiled with threads support
IF(FFTWF_LIB)
SET(FFTWF_FOUND 1)
IF(FFTWF_THREADS_LIB)
SET(FFTWF_LIB ${FFTWF_LIB} ${FFTWF_THREADS_LIB} )
ENDIF(FFTWF_THREADS_LIB)
ENDIF(FFTWF_LIB)
ENDIF(USE_FFTWF)
ENDIF(USE_FFTWD OR USE_FFTWF)
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