# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ***** END GPL LICENSE BLOCK *****

set(FFTW_EXTRA_ARGS)

if(WIN32)
	set(FFTW3_ENV set CFLAGS=-fno-stack-check -fno-stack-protector -mno-stack-arg-probe -fno-lto &&)
	set(FFTW3_PATCH_COMMAND ${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/fftw3/src/external_fftw3 < ${PATCH_DIR}/fftw3.diff)
endif()

ExternalProject_Add(external_fftw3
	URL ${FFTW_URI}
	DOWNLOAD_DIR ${DOWNLOAD_DIR}
	URL_HASH MD5=${FFTW_HASH}
	PREFIX ${BUILD_DIR}/fftw3
	CONFIGURE_COMMAND ${CONFIGURE_ENV} && ${FFTW3_ENV} cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && ${CONFIGURE_COMMAND} --enable-static --prefix=${mingw_LIBDIR}/fftw3
	PATCH_COMMAND ${FFTW3_PATCH_COMMAND}
	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && make	-j${MAKE_THREADS}
	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && make install
	INSTALL_DIR ${LIBDIR}/fftw3
)

if(MSVC)
	set_target_properties(external_fftw3 PROPERTIES FOLDER Mingw)
endif(MSVC)