cannot find -lc

交叉编译工具和 uboot源码都是 2440 镜像文件里提供的
编译uboot时候先是执行了
$ make distclean
$ make
结果出错，提示如下：
/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/.arm-none-linux-gnueabi-ld: cannot find -lc

打印了库搜索路径
$ arm-linux-gcc --print-search-dir
install: /home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.3/
programs: =/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../libexec/gcc/arm-none-linux-gnueabi/4.4.3/:/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../libexec/gcc/:/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.3/../../../../arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi/4.4.3/:/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.3/../../../../arm-none-linux-gnueabi/bin/
libraries: =/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.3/:/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../lib/gcc/:/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.3/../../../../arm-none-linux-gnueabi/lib/arm-none-linux-gnueabi/4.4.3/:/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../lib/gcc/arm-none-linux-gnueabi/4.4.3/../../../../arm-none-linux-gnueabi/lib/:/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../arm-none-linux-gnueabi//sys-root/lib/arm-none-linux-gnueabi/4.4.3/:/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../arm-none-linux-gnueabi//sys-root/lib/:/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../arm-none-linux-gnueabi//sys-root/usr/lib/arm-none-linux-gnueabi/4.4.3/:/home/xmr/20101122/mini2440/toolschain/4.4.3/bin/../arm-none-linux-gnueabi//sys-root/usr/lib/

麻烦各位再看看 ，已经把 交叉编译工具解压到 / 目录下了
（注： 我make的时候是普通用户）

make[1]:正在离开目录 `/home/xmr/20101122/mini2440/bootloader/u-boot-1.1.6/common'
UNDEF_SYM=`arm-linux-objdump -x lib_generic/libgeneric.a board/open24x0/libopen24x0.a cpu/arm920t/libarm920t.a cpu/arm920t/s3c24x0/libs3c24x0.a lib_arm/libarm.a fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/nand/libnand.a drivers/nand_legacy/libnand_legacy.a drivers/usb/libusb.a drivers/sk98lin/libsk98lin.a common/libcommon.a |sed  -n -e 's/.*\(__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\
                cd /home/xmr/20101122/mini2440/bootloader/u-boot-1.1.6 && arm-linux-ld -Bstatic -T /home/xmr/20101122/mini2440/bootloader/u-boot-1.1.6/board/open24x0/u-boot.lds -Ttext 0x33F80000  $UNDEF_SYM cpu/arm920t/start.o \
                        --start-group lib_generic/libgeneric.a board/open24x0/libopen24x0.a cpu/arm920t/libarm920t.a cpu/arm920t/s3c24x0/libs3c24x0.a lib_arm/libarm.a fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/nand/libnand.a drivers/nand_legacy/libnand_legacy.a drivers/usb/libusb.a drivers/sk98lin/libsk98lin.a common/libcommon.a --end-group -L /opt/FriendlyARM/toolschain/4.4.3/lib/gcc/arm-none-linux-gnueabi/4.4.3 -lgcc -lc -L/usr/local/arm/4.3.2/arm-none-linux-gnueabi/libc/armv4t/usr/lib \
                        -Map u-boot.map -o u-boot
/opt/FriendlyARM/toolschain/4.4.3/bin/.arm-none-linux-gnueabi-ld: cannot find -lc
make: *** [u-boot] 错误 1