[Mod] First commit

package/fftw/Config.in

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+config BR2_PACKAGE_FFTW
+	bool "fftw"
+	select BR2_PACKAGE_FFTW_DOUBLE if !BR2_PACKAGE_FFTW_SINGLE \
+		&& !BR2_PACKAGE_FFTW_LONG_DOUBLE && !BR2_PACKAGE_FFTW_QUAD
+	help
+	  Library for computing Fast Fourier Transforms.
+
+	  This library computes Fast Fourier Transforms (FFT) in one
+	  or more dimensions. It is extremely fast. This package
+	  contains the shared library version of the fftw libraries in
+	  double precision.
+
+	  http://www.fftw.org
+
+if BR2_PACKAGE_FFTW
+
+source "package/fftw/fftw-single/Config.in"
+source "package/fftw/fftw-double/Config.in"
+source "package/fftw/fftw-long-double/Config.in"
+source "package/fftw/fftw-quad/Config.in"
+
+config BR2_PACKAGE_FFTW_FAST
+	bool "optimise for speed over accuracy"
+	help
+	  Optimise for fast math functions, at the expense of accuracy.
+
+	  Say 'y' if you need speed and can live with inaccuracies in
+	  the results. Say 'n' (the default) if accuracy is of utmost
+	  importance.
+
+	  This basically uses gcc's -Ofast optimisation level, which in
+	  turn is basically using gcc's -ffast-math. See the gcc manual
+	  for what this means.
+
+endif

package/fftw/fftw-double/Config.in

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+config BR2_PACKAGE_FFTW_DOUBLE
+	bool "fftw-double"
+	help
+	  Compile fftw in double precision (the default), i.e. use
+	  'double' for floating point type.

package/fftw/fftw-double/fftw-double.hash

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+../fftw.hash

package/fftw/fftw-double/fftw-double.mk

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+################################################################################
+#
+# fftw-double
+#
+################################################################################
+
+FFTW_DOUBLE_VERSION = $(FFTW_VERSION)
+FFTW_DOUBLE_SOURCE = fftw-$(FFTW_VERSION).tar.gz
+FFTW_DOUBLE_SITE = $(FFTW_SITE)
+FFTW_DOUBLE_DL_SUBDIR = fftw
+FFTW_DOUBLE_INSTALL_STAGING = $(FFTW_INSTALL_STAGING)
+FFTW_DOUBLE_LICENSE = $(FFTW_LICENSE)
+FFTW_DOUBLE_LICENSE_FILES = $(FFTW_LICENSE_FILES)
+
+FFTW_DOUBLE_CONF_ENV = $(FFTW_COMMON_CONF_ENV)
+
+FFTW_DOUBLE_CONF_OPTS = \
+	$(FFTW_COMMON_CONF_OPTS) \
+	CFLAGS="$(FFTW_COMMON_CFLAGS)" \
+	$(if $(BR2_X86_CPU_HAS_SSE2),--enable,--disable)-sse2
+
+$(eval $(autotools-package))

package/fftw/fftw-long-double/Config.in

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+config BR2_PACKAGE_FFTW_LONG_DOUBLE
+	bool "fftw-long-double"
+	# long-double precision require long-double trigonometric routines
+	depends on !(BR2_TOOLCHAIN_USES_UCLIBC && \
+		(BR2_arm || BR2_mips || BR2_mipsel))
+	help
+	  Compile fftw in long double precision, i.e. use 'long double'
+	  for floating point type.

package/fftw/fftw-long-double/fftw-long-double.hash

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+../fftw.hash

package/fftw/fftw-long-double/fftw-long-double.mk

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+################################################################################
+#
+# fftw-long-double
+#
+################################################################################
+
+FFTW_LONG_DOUBLE_VERSION = $(FFTW_VERSION)
+FFTW_LONG_DOUBLE_SOURCE = fftw-$(FFTW_VERSION).tar.gz
+FFTW_LONG_DOUBLE_SITE = $(FFTW_SITE)
+FFTW_LONG_DOUBLE_DL_SUBDIR = fftw
+FFTW_LONG_DOUBLE_INSTALL_STAGING = $(FFTW_INSTALL_STAGING)
+FFTW_LONG_DOUBLE_LICENSE = $(FFTW_LICENSE)
+FFTW_LONG_DOUBLE_LICENSE_FILES = $(FFTW_LICENSE_FILES)
+
+FFTW_LONG_DOUBLE_CONF_ENV = $(FFTW_COMMON_CONF_ENV)
+
+FFTW_LONG_DOUBLE_CONF_OPTS = \
+	$(FFTW_COMMON_CONF_OPTS) \
+	CFLAGS="$(FFTW_COMMON_CFLAGS)" \
+	--enable-long-double
+
+$(eval $(autotools-package))

package/fftw/fftw-quad/Config.in

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+config BR2_PACKAGE_FFTW_QUAD
+	bool "fftw-quad"
+	# quad-precision needs to have a gcc with libquadmath
+	depends on BR2_TOOLCHAIN_HAS_LIBQUADMATH && BR2_USE_WCHAR
+	help
+	  Compile fftw in quadruple precision, i.e. use '__float128' for
+	  floating point type.

package/fftw/fftw-quad/fftw-quad.hash

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+../fftw.hash

package/fftw/fftw-quad/fftw-quad.mk

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+################################################################################
+#
+# fftw-quad
+#
+################################################################################
+
+FFTW_QUAD_VERSION = $(FFTW_VERSION)
+FFTW_QUAD_SOURCE = fftw-$(FFTW_VERSION).tar.gz
+FFTW_QUAD_SITE = $(FFTW_SITE)
+FFTW_QUAD_DL_SUBDIR = fftw
+FFTW_QUAD_INSTALL_STAGING = $(FFTW_INSTALL_STAGING)
+FFTW_QUAD_LICENSE = $(FFTW_LICENSE)
+FFTW_QUAD_LICENSE_FILES = $(FFTW_LICENSE_FILES)
+
+FFTW_QUAD_CONF_ENV = $(FFTW_COMMON_CONF_ENV)
+
+FFTW_QUAD_CONF_OPTS = \
+	$(FFTW_COMMON_CONF_OPTS) \
+	CFLAGS="$(FFTW_COMMON_CFLAGS)" \
+	--enable-quad-precision
+
+$(eval $(autotools-package))

package/fftw/fftw-single/Config.in

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+config BR2_PACKAGE_FFTW_SINGLE
+	bool "fftw-single"
+	help
+	  Compile fftw in single precision, i.e. use 'float'
+	  for floating point type.

package/fftw/fftw-single/fftw-single.hash

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+../fftw.hash

package/fftw/fftw-single/fftw-single.mk

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+################################################################################
+#
+# fftw-single
+#
+################################################################################
+
+FFTW_SINGLE_VERSION = $(FFTW_VERSION)
+FFTW_SINGLE_SOURCE = fftw-$(FFTW_VERSION).tar.gz
+FFTW_SINGLE_SITE = $(FFTW_SITE)
+FFTW_SINGLE_DL_SUBDIR = fftw
+FFTW_SINGLE_INSTALL_STAGING = $(FFTW_INSTALL_STAGING)
+FFTW_SINGLE_LICENSE = $(FFTW_LICENSE)
+FFTW_SINGLE_LICENSE_FILES = $(FFTW_LICENSE_FILES)
+
+FFTW_SINGLE_CONF_ENV = $(FFTW_COMMON_CONF_ENV)
+
+FFTW_SINGLE_CONF_OPTS = \
+	$(FFTW_COMMON_CONF_OPTS) \
+	CFLAGS="$(FFTW_SINGLE_CFLAGS)" \
+	--enable-single
+
+FFTW_SINGLE_CFLAGS = $(FFTW_COMMON_CFLAGS)
+
+# x86 optimisations
+FFTW_SINGLE_CONF_OPTS += \
+	$(if $(BR2_X86_CPU_HAS_SSE),--enable,--disable)-sse \
+	$(if $(BR2_X86_CPU_HAS_SSE2),--enable,--disable)-sse2
+
+# ARM optimisations
+ifeq ($(BR2_ARM_CPU_HAS_NEON):$(BR2_ARM_SOFT_FLOAT),y:)
+FFTW_SINGLE_CONF_OPTS += --enable-neon
+FFTW_SINGLE_CFLAGS += -mfpu=neon
+else
+FFTW_SINGLE_CONF_OPTS += --disable-neon
+endif
+
+$(eval $(autotools-package))

package/fftw/fftw.hash

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+# From http://www.fftw.org/fftw-3.3.8.tar.gz.md5sum
+md5  8aac833c943d8e90d51b697b27d4384d  fftw-3.3.8.tar.gz
+# Locally computed
+sha256  6113262f6e92c5bd474f2875fa1b01054c4ad5040f6b0da7c03c98821d9ae303  fftw-3.3.7.tar.gz
+sha256  231f7edcc7352d7734a96eef0b8030f77982678c516876fcb81e25b32d68564c  COPYING

package/fftw/fftw.mk

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+################################################################################
+#
+# fftw
+#
+################################################################################
+
+FFTW_VERSION = 3.3.8
+FFTW_SITE = http://www.fftw.org
+FFTW_INSTALL_STAGING = YES
+FFTW_LICENSE = GPL-2.0+
+FFTW_LICENSE_FILES = COPYING
+
+# fortran support only enables generation and installation of fortran sources
+ifeq ($(BR2_TOOLCHAIN_HAS_FORTRAN),y)
+FFTW_COMMON_CONF_OPTS += --enable-fortran
+FFTW_COMMON_CONF_ENV += FLIBS="-lgfortran -lm"
+else
+FFTW_COMMON_CONF_OPTS += --disable-fortran
+endif
+
+FFTW_COMMON_CFLAGS = $(TARGET_CFLAGS)
+
+ifeq ($(BR2_PACKAGE_FFTW_FAST),y)
+FFTW_COMMON_CFLAGS += -O3 -ffast-math
+endif
+
+# Generic optimisations
+ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
+FFTW_COMMON_CONF_OPTS += --enable-threads
+FFTW_COMMON_CONF_OPTS += $(if $(BR2_TOOLCHAIN_HAS_OPENMP),--without,--with)-combined-threads
+else
+FFTW_COMMON_CONF_OPTS += --disable-threads
+endif
+FFTW_COMMON_CONF_OPTS += $(if $(BR2_TOOLCHAIN_HAS_OPENMP),--enable,--disable)-openmp
+
+include $(sort $(wildcard package/fftw/*/*.mk))