[Buildroot] PPC won't build with soft float

[Chris Elliott <Chris@PinsonConsulting.com>]

Recently I have been unable to build when soft float is set.  I have 
tried 20090323 and 20090329.  The configuration is below.  It fails 
saying that the C compiler cannot create executables.  The failure is in 
libmudflap.  Checking config.log I see the specific error is 
".../gcc-4.3.3-final/./gcc/libgcc_s.so: undefined reference to 
'copysignl'"  Is there a fix or workaround?

BR2_HAVE_DOT_CONFIG=y
BR2_VERSION="2009.05-svn"
BR2_powerpc=y
BR2_powerpc_405=y
BR2_ARCH="powerpc"
BR2_ENDIAN="BIG"
BR2_GCC_TARGET_TUNE="405"
BR2_PROJECT="uclibc"
BR2_HOSTNAME="uclibc"
BR2_BANNER="Welcome to Buildroot"
BR2_WGET="wget --passive-ftp -nd"
BR2_SVN_CO="svn co"
BR2_SVN_UP="svn up"
BR2_GIT="git clone"
BR2_ZCAT="gzip -d -c"
BR2_BZCAT="bzcat"
BR2_TAR_OPTIONS=""
BR2_DL_DIR="$(BASE_DIR)/dl"
BR2_COPYTO=""
BR2_PRIMARY_SITE=""
BR2_BACKUP_SITE="http://buildroot.net/downloads/sources/"
BR2_SOURCEFORGE_MIRROR="easynews"
BR2_KERNEL_MIRROR="http://www.kernel.org/pub/"
BR2_GNU_MIRROR="http://ftp.gnu.org/pub/gnu"
BR2_DEBIAN_MIRROR="http://ftp.debian.org"
BR2_ATMEL_MIRROR="ftp://www.at91.com/pub/buildroot/"
BR2_AT91_PATCH_MIRROR="http://maxim.org.za/AT91RM9200/2.6/"
BR2_STAGING_DIR="$(BUILD_DIR)/staging_dir"
BR2_TOPDIR_PREFIX=""
BR2_TOPDIR_SUFFIX=""
BR2_GNU_BUILD_SUFFIX="pc-linux-gnu"
BR2_GNU_TARGET_SUFFIX="linux-uclibc"
BR2_JLEVEL=1
BR2_RECENT=y
BR2_STRIP_strip=y
BR2_OPTIMIZE_S=y
BR2_UPDATE_CONFIG=y
BR2_TOOLCHAIN_BUILDROOT=y
BR2_TOOLCHAIN_SOURCE=y
BR2_EXT_GCC_VERSION_4_1_2=y
BR2_EXT_GCC_VERSION_4_2_1=y
BR2_EXT_GCC_VERSION_4_2_2=y
BR2_EXT_GCC_VERSION_4_2_3=y
BR2_EXT_BINUTILS_VERSION_2_17=y
BR2_EXT_BINUTILS_VERSION_2_18=y
BR2_EXT_UCLIBC_VERSION_0_9_28_3=y
BR2_EXT_UCLIBC_VERSION_0_9_29=y
BR2_EXT_UCLIBC_VERSION_0_9_30=y
BR2_EXT_UCLIBC_VERSION_0_9_30_1=y
BR2_KERNEL_HEADERS_2_6_28=y
BR2_DEFAULT_KERNEL_HEADERS="2.6.28.8"
BR2_UCLIBC_VERSION_0_9_30_1=y
BR2_UCLIBC_VERSION_STRING="0.9.30.1"
BR2_UCLIBC_CONFIG="toolchain/uClibc/uClibc-0.9.30.config"
BR2_BINUTILS_VERSION_2_19_1=y
BR2_BINUTILS_VERSION="2.19.1"
BR2_EXTRA_BINUTILS_CONFIG_OPTIONS=""
BR2_GCC_VERSION_4_3_3=y
BR2_GCC_SUPPORTS_SYSROOT=y
BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE=y
BR2_GCC_VERSION="4.3.3"
BR2_TOOLCHAIN_SYSROOT=y
BR2_EXTRA_GCC_CONFIG_OPTIONS=""
BR2_GCC_SHARED_LIBGCC=y
BR2_INET_RPC=y
BR2_SOFT_FLOAT=y
BR2_PTHREADS_OLD=y
BR2_TARGET_OPTIMIZATION="-Os -pipe"
BR2_CROSS_TOOLCHAIN_TARGET_UTILS=y
BR2_PACKAGE_BUSYBOX=y
BR2_BUSYBOX_VERSION_1_13_X=y
BR2_BUSYBOX_VERSION="1.13.3"
BR2_PACKAGE_BUSYBOX_FULLINSTALL=y
BR2_PACKAGE_BUSYBOX_CONFIG="../configs/busybox.config"
BR2_PACKAGE_BUSYBOX_HIDE_OTHERS=y
BR2_HOST_FAKEROOT=y
BR2_PACKAGE_CUSTOMIZE=y
BR2_PACKAGE_DROPBEAR=y
BR2_PACKAGE_LIBPCAP=y
BR2_PACKAGE_TCPDUMP=y
BR2_PACKAGE_TTCP=y
BR2_PACKAGE_MTD=y
BR2_PACKAGE_MTD_UTILS=y
BR2_PACKAGE_MTD_FLASHCP=y
BR2_PACKAGE_MTD_FLASH_ERASE=y
BR2_PACKAGE_MTD_FLASH_ERASEALL=y
BR2_PACKAGE_MTD_FLASH_INFO=y
BR2_PACKAGE_MTD_JFFS2DUMP=y
BR2_PACKAGE_MTD_MKFSJFFS2=y
BR2_PACKAGE_MTD_MKFSJFFS=y
BR2_PACKAGE_XSERVER_none=y
BR2_PACKAGE_LZO=y
BR2_PACKAGE_ZLIB=y
BR2_ROOTFS_PREFIX="rootfs"
BR2_ROOTFS_SUFFIX=""
BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_BLOCKS=0
BR2_TARGET_ROOTFS_EXT2_INODES=0
BR2_TARGET_ROOTFS_EXT2_RESBLKS=0
BR2_TARGET_ROOTFS_EXT2_SQUASH=y
BR2_TARGET_ROOTFS_EXT2_OUTPUT="$(IMAGE).ext2"
BR2_TARGET_ROOTFS_EXT2_GZIP=y
BR2_TARGET_ROOTFS_EXT2_COPYTO=""
BR2_KERNEL_none=y