[rrd-users] compile problem with IEEE math on Freescale P2020

[Trevor Bowen]

Hi,

Has anyone discovered how to cross-compile RRDtool for Freescale's P2020 
using their LTIB toolchain?  I am getting the familiar missing IEEE 
floating-point math error:

     IEEE Math Checks
     checking for fpclassify... no
     checking for fpclassify with <math.h>... yes
     checking for isinf... yes
     checking whether isfinite is broken... no
     checking if IEEE math works out of the box... no
     checking if IEEE math works with the -ieee switch... no
     checking if IEEE math works with the -qfloat=nofold switch... no
     checking if IEEE math works with the -w -qflttrap=enable:zerodivide... no
     checking if IEEE math works with the -mieee switch... no
     checking if IEEE math works with the -q float=rndsngl switch... no
     checking if IEEE math works with the -OPT:IEEE_NaN_inf=ON switch... no
     checking if IEEE math works with the -OPT:IEEE_comparisons=ON switch... no
     checking if IEEE math works with fpsetmask(0)... no
     checking if IEEE math works with signal(SIGFPE,SIG_IGN)... no
     configure: error:
     Your Compiler does not do propper IEEE math ... Please find out how to
     make IEEE math work with your compiler and let me know (tobi at oetiker.ch).
     Check config.log to see what went wrong ...

I am compiling it with the following (simplified) script:

     export RFS=/local/cross-compiled/rootfs
     export ARCH=powerpc
     export OS=linux
     export TOOLCHAIN_BASE=/opt/freescale
     export 
TOOLCHAIN_BIN=${TOOLCHAIN_BASE}/usr/local/gcc-4.3.74-eglibc-2.8.74-dp-2/powerpc-none-linux-gnuspe/bin
     export CROSS_COMPILE=${TOOLCHAIN_BIN}/powerpc-none-linux-gnuspe-
     export c=${CROSS_COMPILE}
     export AS=${CROSS_COMPILE}as
     export LD=${CROSS_COMPILE}ld
     export CC=${CROSS_COMPILE}gcc
     export AR=${CROSS_COMPILE}ar
     export STRIP="${CROSS_COMPILE}strip --strip-unneeded"
     export SSTRIP=${CROSS_COMPILE}sstrip
     export OBJCOPY=${CROSS_COMPILE}objcopy
     export OBJDUMP=${CROSS_COMPILE}objdump
     export MAKE=make
     export CFLAGS="-I${RFS}/usr/local/include -L${RFS}/lib"
     export LDFLAGS="-I${RFS}/usr/local/include -L${RFS}/lib"
     export PKG_CONFIG_LIBDIR="$( cd ${RFS}/usr/lib/pkgconfig && pwd )"
     ./configure --host=ppc-linux --build=i586-linux-gnu --prefix=/usr/local

Any suggestions?

Thanks!

Trevor