“--disable-multiarch” produce error about missing “bits.h”

[Hibou57 <yannick_duchene@xxxxxxxx>]

Hi,

Compiling GCC 4.6.4 on Ubuntu 12.04 32 bits which comes with GCC 4.6.3, I've
noticed giving the `--disable-multiarch` option to `configure`, makes the
compilation fails with a complaint about a missing `bits.h` includes file.

Is this normal behaviour?

Configuration wrapper script:

    #!/bin/bash

    VERSION="4.6.4";

    ../source/configure                 \
    --build=i386-linux-gnu              \
    --disable-build-with-cxx            \
    --disable-coverage                  \
    --disable-gather-detailed-mem-stats \
    --disable-gc-debug                  \
    --disable-libquadmath               \
    --disable-libssp                    \
    --disable-multiarch                 \
    --disable-multilib                  \
    --disable-nls                       \
    --disable-plugin                    \
    --enable-languages=c                \
    --enable-ld                         \
    --enable-linker-build-id            \
    --enable-sjlj-exceptions            \
    --enable-targets=x86                \
    --enable-threads=posix              \
    --prefix=/home/yannick/apps/gcc-$VERSION/installed \
    --program-suffix=-$VERSION          \
    --target=i386-linux-gnu             \
    -v                                  \
    --with-sysroot=/                    \
    --with-system-zlib                  \


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