FindFFTW¶

Find the FFTW library.

find_package(FFTW [REQUIRED] [QUIET]
             [COMPONENTS [single] [double] [long_double] [quad]])

By default, search for the double precision library fftw3

Components¶

If a different version or multiple versions of the library are required, these need to be specified as COMPONENTS. Note that double must be given explicitly if any COMPONENTS are specified.

The libraries corresponding to each of the COMPONENTS are:

single:	`FFTW::fftw3f`
double:	`FFTW::fftw3`
long_double:	`FFTW::fftw3l`
quad:	`FFTW::fftw3q`

Output variables¶

The following CMake variables are set on completion:

FFTW_INCLUDE_DIRS:
FFTW_FOUND:	true if FFTW is found on the system
FFTW_LIBRARIES:	full paths to requested FFTW libraries
	FFTW include directory

Input variables¶

The following CMake variables are checked by the function:

FFTW_USE_STATIC_LIBS:
	if true, only static libraries are found
FFTW_ROOT:	if set, this path is exclusively searched
FFTW_DIR:	equivalent to FFTW_ROOT
FFTW_PATH:	equivalent to FFTW_ROOT
FFTW_LIBRARIES:	User overriden FFTW libraries
FFTW_INCLUDE_DIRS:
	User overriden FFTW includes directories