‘make gcc elf2flt gdb-host’error in nios2-linux-20120802

Hi, everyone!

I have download the files of the nios2-linux-20120802

./checkout

There's no errors! Then extra the nios2gcc-20080203.tgz to the 'home/nios2-linux/toolchain-build/build/nios2/bin'

nios2-linux-uclibc-gcc -v

# nios2-linux-uclibc-gcc -v
Reading specs from /home/nios2-linux/toolchain-build/build/nios2/lib/gcc/nios2-linux-uclibc/3.4.6/specs
Configured with: /home/nios2-linux/toolchain-build/../gcc3/configure --prefix=/home/nios2-linux/toolchain-build/build/nios2 --target=nios2-linux-uclibc --enable-languages=c --with-sysroot=/home/nios2-linux/toolchain-build/build/sysroot/ --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --disable-shared --disable-nls --enable-threads --enable-multilib --enable-cxx-flags=-static
Thread model: posix
gcc version 3.4.6

gcc --version

# gcc --version
gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-52)
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

git version

# git version
git version 1.7.12.GIT

# rpm -qa | grep ncurses
ncurses-devel-5.5-24.20060715
ncurses-5.5-24.20060715

I have never faced these problems in the nios2-linux-20100602,but I faced it in

the nios2-linux-20120802 under the CentOS 5.6.

The error occured when I input the command

cd toolchain-build
gcc --version 
git clean -f -x -d  #  clean on restart
make gcc elf2flt gdb-host 

by following the URL:

http://www.alterawiki.com/wiki/install_nios_ii_linux

make: Entering directory `/home/nios2-linux/uClibc'
make: `conf' is up to date.
  CC libpthread/linuxthreads.old/wrapsyscall.o
libpthread/linuxthreads.old/wrapsyscall.c:101: error: redefinition of 'msync'
./include/sys/mman.h:97: error: previous definition of 'msync' was here
make: ***  Error 1
make: Leaving directory `/home/nios2-linux/uClibc'
make: ***  Error 2
# 

Thanks!