Correct configure magic for building a MIPS cross compiler

[Alex Bennee <kernel-hacker at bennee dot com>]

Hi,

I'm trying to build a MIPS compiler for building kernels. Although the
linux-mips.org site specifies 3.4.2 I thought I'd try the latest stable
release. While googling I've seen people that seem to be using it but I
can't seem to get the correct configure magic for it.

Currently it fails building libmudflap which seems a little premature as
I'm guessing it needs a working cross compiler first:

make[2]: Leaving directory `/home/alex/src/mips/gcc/gcc-bootstrap/gcc'
Checking multilib configuration for libmudflap...
mkdir -p -- mips-unknown-linux-gnu/libmudflap
Configuring in mips-unknown-linux-gnu/libmudflap
configure: creating cache ./config.cache
checking build system type... x86_64-unknown-linux-gnu
checking host system type... mips-unknown-linux-gnu

^^^
-- Should this not be my host system, i.e. x86_64-unknown-linux-gnu

checking target system type... mips-unknown-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for
mips-unknown-linux-gnu-strip... /home/alex/src/mips/toolchain/mips-unknown-linux-gnu/bin/strip
checking for --enable-version-specific-runtime-libs... no
checking whether to enable maintainer-specific portions of Makefiles...
no
checking for
mips-unknown-linux-gnu-gcc... /home/alex/src/mips/gcc/gcc-bootstrap/./gcc/xgcc -B/home/alex/src/mips/gcc/gcc-bootstrap/./gcc/ -B/home/alex/src/mips/toolchain/mips-unknown-linux-gnu/bin/ -B/home/alex/src/mips/toolchain/mips-unknown-linux-gnu/lib/ -isystem /home/alex/src/mips/toolchain/mips-unknown-linux-gnu/include -isystem /home/alex/src/mips/toolchain/mips-unknown-linux-gnu/sys-include
checking for C compiler default output file name... configure: error: C
compiler cannot create executables
See `config.log' for more details.
make[1]: *** [configure-target-libmudflap] Error 1
make[1]: Leaving directory `/home/alex/src/mips/gcc/gcc-bootstrap'
make: *** [all] Error 2

Also should libmudflap be needed for building kernels?

My configure line is:

export PREFIX=/home/alex/src/mips/toolchain
export TARGET=mips-unknown-linux-gnu
export HOST=x86_64-unknown-linux-gnu
./gcc.4_2/configure --host=$HOST --target=$TARGET --prefix=$PREFIX
--enable-languages=c --with-gnu-ld --with-gnu-as  --without-headers
--disable-shared --disable-threads

I have already build a binutils and it's installed in my toolchain dir.
I'm building from the GCC 4.2 SVN branch.

Any pointers?

-- 
Alex, homepage: http://www.bennee.com/~alex/
Whenever people agree with me I always feel I must be wrong. -- Oscar
Wilde