Re: ecj branch

[Marco Trudel <mtrudel at gmx dot ch>]

Mohan Embar wrote:
> > The build is currently set up to automatically use ecj.jar if it is in....
>
> Thanks, Tom
>
> I'm currently doing battle with cross compilation and dependency
> issues. I've downloaded the recommended gmp and mpfr, but
> the build is dying because I've installed these to non-standard
> locations and can't for the life if me figure out the proper incantation
> to get gcc to pick these up.

Do you try to crosscompile them or only compiling it for your Linux 
distro? If you cross-compile, you should put it in 
sys-root/mingw/include. Otherwise I don't know. Is there a specific 
reason why you put it in non-standard locations?


> What's more, I'm running into a
> cross compilation issue where configure in libstdc++ tries to
> run an executable built with the cross compiler. I think I'm going
> to give up for today and pick this up later on.

I ran into problems like that myself. I don't remember what fixed it 
(thought it was with the version 4.2, you might have a completely 
different problem).

Either it was to export these:
CC=/path/to/i686-pc-mingw32-gcc
CXX=/path/to/i686-pc-mingw32-g++

Or it was to omit the "--with-build-sysroot".

Maybe it helps :-)


> I thought I figured out the dependency issue for ecj branch:
>
> export GMPINC="-I$GMP_MPFR_DIR/include"
> export GMPLIBS="-L$GMP_MPFR_DIR/lib -lgmp -mpfr"
>
> $GCC_SRC_DIR/configure --prefix="$PREFIX" \
>     --with-sysroot="$SYSROOT" --with-build-sysroot="$SYSROOT" \
>     --target=$TARGET --host=$HOST --build=$BUILD \

I also had big problems with "--build".


Marco