Re: Help with ppc-linux cross

[Brendan Simon <brendan@dgs.monash.edu.au>]

Will Sloan wrote:

> I'm trying to build a cross compiler from linux on x86 to linux on
> powerpc.  I got the following error when it tries to execurte a
> Configure script in powerpc-linux-gnu/libiberty
> :
>
> checking whether the C compiler (/Godzilla/tools/src/build-gcc/gcc/xgcc
> -B/Godzilla/tools/src/build-gcc/gcc/
> -B/Godzilla/tools/powerpc-linux-gnu/bin/ -g -O2 ) works... no
> configure: error: installation or configuration problem: C compiler
> cannot create executables.
> make[2]: Entering directory
> `/Godzilla/tools/src/build-gcc/powerpc-linux-gnu/libio'
> test x"no" != xyes ||\
>   /Godzilla/tools/src/build-gcc/gcc/xgcc
> -B/Godzilla/tools/src/build-gcc/gcc/
> -B/Godzilla/tools/powerpc-linux-gnu/bin/ -c -g -O2 -I.
> -I../../../gcc-2.95/libio -D_IO_MTSAFE_IO
> ../../../gcc-2.95/libio/iogetline.c -o pic/iogetline.o
> /Godzilla/tools/src/build-gcc/gcc/xgcc
> -B/Godzilla/tools/src/build-gcc/gcc/
> -B/Godzilla/tools/powerpc-linux-gnu/bin/ -c -g -O2 -I.
> -I../../../gcc-2.95/libio -D_IO_MTSAFE_IO
> ../../../gcc-2.95/libio/iogetline.c
> In file included from ../../../gcc-2.95/libio/iogetline.c:26:
> ../../../gcc-2.95/libio/libioP.h:30: errno.h: No such file or directory
> In file included from ../../../gcc-2.95/libio/iolibio.h:1,
>                  from ../../../gcc-2.95/libio/libioP.h:47,
>                  from ../../../gcc-2.95/libio/iogetline.c:26:
> ../../../gcc-2.95/libio/libio.h:30: _G_config.h: No such file or
> directory
> ../../../gcc-2.95/libio/iogetline.c:27: string.h: No such file or
> directory
> make[2]: *** [iogetline.o] Error 1
> make[2]: Leaving directory
> `/Godzilla/tools/src/build-gcc/powerpc-linux-gnu/libio'
> make[1]: *** [all-target-libio] Error 2
> make[1]: Leaving directory `/Godzilla/tools/src/build-gcc'
> make: *** [cross] Error 2
>
> I have verified that errno.h and string.h do exists in
> $prefix/$target/include.  does anyone know what is happening and how to
> fix it????

Where did these include files come from ?  A glibc distribution ?

I haven't seen this problem but make sure that you have the following.
1) preinstalled include files from a powerpc distribution to
$prefix/$target/include
2) preinstalled library files from a powerpc distribution to $prefix$target/lib
3) installed the linux kernel source tree to $prefix/$target/linux
4) cd $prefix/$target/linux ; rm -rf `ls --color=none --ignore=include`
4) cd $prefix/$target/linux ; ln -sf asm-ppc asm
5) cd $prefix/$target/include ; ln -sf $prefix/$target/linux/include/asm-ppc asm
6) cd $prefix/$target/include ; ln -sf $prefix/$target/linux/include/linux linux

I'm not sure if it will solve your problem but it might help.

Brendan Simon.




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