GCC-3.0.1 can't compile Glibc-2.2.4

[william]

Hi,
        After I built GCC-3.0.1 compiler,I want to use it to compile
glibc-2.2.4,when configuring:
        CC=mipsel-linux-gcc AR=mipsel-linux-ar
RANLIB=mipsel-linux-ranlib BUILD_CC=gcc ../configure --prefix=/usr/local
--host=mipsel-linux --enable-add-ons=linuxthreads --enable-profile
        compiler told me below message:
        .......
    checking for mig... mig
configure: warning:
*** These auxiliary programs are missing or too old: msgfmt
*** some features will be disabled.
*** Check the INSTALL file for required versions.
*** This version of GNU libc cannot be compiled by GCC 3.x.
*** GCC 3.x will generate a library that is binary incompatible to
*** older and future releases of GNU libc.
*** You should compile this GNU libc release by an older GCC version
*** or wait for the next GNU libc release.
*** If you really mean to use GCC 3.x, run configure again
*** using the extra parameter `--disable-sanity-checks'.
            What does  it mean?GCC-3.0.1 can't compile glibc-2.2.4
Best regards
       william 24/9/2001