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[packages/trusty/cirros-testvm.git] / cirros-testvm / src-cirros / buildroot-2015.05 / package / fftw / Config.in

diff --git a/cirros-testvm/src-cirros/buildroot-2015.05/package/fftw/Config.in b/cirros-testvm/src-cirros/buildroot-2015.05/package/fftw/Config.in
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+config BR2_PACKAGE_FFTW
+       bool "fftw"
+       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
+
+config BR2_PACKAGE_FFTW_USE_SSE
+       bool
+
+config BR2_PACKAGE_FFTW_USE_SSE2
+       bool
+
+config BR2_PACKAGE_FFTW_USE_NEON
+       bool
+
+choice
+       prompt "fftw precision"
+       default BR2_PACKAGE_FFTW_PRECISION_DOUBLE
+       help
+         Selects fftw precision
+
+config BR2_PACKAGE_FFTW_PRECISION_SINGLE
+       bool "single"
+       select BR2_PACKAGE_FFTW_USE_SSE if BR2_X86_CPU_HAS_SSE
+       select BR2_PACKAGE_FFTW_USE_SSE2 if BR2_X86_CPU_HAS_SSE2
+       select BR2_PACKAGE_FFTW_USE_NEON if BR2_ARM_CPU_HAS_NEON && !BR2_ARM_SOFT_FLOAT
+       help
+         Compile fftw in single precision, i.e. use 'float' for floating
+         point type.
+
+config BR2_PACKAGE_FFTW_PRECISION_DOUBLE
+       bool "double"
+       select BR2_PACKAGE_FFTW_USE_SSE2 if BR2_X86_CPU_HAS_SSE2
+       help
+         Compile fftw in double precision (the default), i.e. use 'double'
+         for floating point type.
+
+config BR2_PACKAGE_FFTW_PRECISION_LONG_DOUBLE
+       bool "long double"
+       # long-double precision require long-double trigonometric routines
+       depends on !(BR2_TOOLCHAIN_BUILDROOT_UCLIBC && \
+               (BR2_arm || BR2_mips || BR2_mipsel))
+       help
+         Compile fftw in long double precision, i.e. use 'long double'
+         for floating point type.
+
+config BR2_PACKAGE_FFTW_PRECISION_QUAD
+       bool "quad"
+       # quad-precision needs to have a gcc with libquadmath
+       depends on (BR2_i386 || BR2_x86_64) && BR2_USE_WCHAR
+       help
+         Compile fftw in quadruple precision, i.e. use '__float128' for
+         floating point type.
+
+endchoice
+
+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