@@ -9,3 +9,41 @@ config BR2_PACKAGE_FFTW
double precision.
http://www.fftw.org
+
+if BR2_PACKAGE_FFTW
+
+choice
+ prompt "fftw precision"
+ default BR2_PACKAGE_FFTW_PRECISION_NONE
+ help
+ Selects fftw precision
+
+config BR2_PACKAGE_FFTW_PRECISION_NONE
+ bool "none"
+ help
+ no compile precision selected
+
+config BR2_PACKAGE_FFTW_PRECISION_SINGLE
+ bool "single precision"
+ help
+ compile fftw in single precision
+
+config BR2_PACKAGE_FFTW_PRECISION_LONG_DOUBLE
+ bool "long double precision"
+ # 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
+
+config BR2_PACKAGE_FFTW_PRECISION_QUAD
+ bool "quad precision"
+ # 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 if available
+
+endchoice
+
+endif
@@ -10,4 +10,8 @@ FFTW_INSTALL_STAGING = YES
FFTW_LICENSE = GPLv2+
FFTW_LICENSE_FILES = COPYING
+FFTW_CONF_OPTS += $(if $(BR2_PACKAGE_FFTW_PRECISION_SINGLE),--enable,--disable)-single
+FFTW_CONF_OPTS += $(if $(BR2_PACKAGE_FFTW_PRECISION_LONG_DOUBLE),--enable,--disable)-long-double
+FFTW_CONF_OPTS += $(if $(BR2_PACKAGE_FFTW_PRECISION_QUAD),--enable,--disable)-quad-precision
+
$(eval $(autotools-package))