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RE: Compile a new cross compiler



>-----Original Message-----
>From: Hansjörg Petriffer [mailto:hpetriffer@grips.com]
>Sent: 19 March 2001 08:42
>To: crossgcc@sourceware.cygnus.com

  Sorry, Hansjörg; I began writing this the first time you asked the
question and then forgot about it in my drafts folder.

>I have already compiled one cross compiler and I want use this two for
>different projects.
>The only thing that I'm not sure here, is that the first compiler I have
>made with 
>
>/src/gcc/gcc-YYYYMMDD/configure --target=mn10300-elf \
>--prefix=/tools \
>--exec-prefix=/tools/H-i686-pc-cygwin \
>--with-gnu-as --with-gnu-ld --with-newlib \
>-v 2>&1 | tee configure.out 
>
>can I now use also 
>
>cd /tmp/build/gcc
>/src/gcc/gcc-2.95.2/configure --target=i386-elf \
>--prefix=/tools \
>--exec-prefix=/tools/H-i686-pc-cygwin \
>--with-gnu-as --with-gnu-ld --with-newlib \
>-v 2>&1 | tee configure.out 
>
>or I have to use an path different to /tools?

  That will be fine.  Different targets and different version numbers of
the gcc compiler don't (in general) interfere with each other.

  The way this works is that gcc keeps all the target and version specific
files in separate subdirectories of $prefix/lib/gcc-lib; these are named
according to the scheme
      $prefix/lib/gcc-lib/$target/$version.
and you can then select any target by supplying the '-b' option to the
gcc command, or by using the driver named $target-gcc.

  Are you using the --exec-prefix for any reason other than because that's
how old (beta) versions of cygwin are set up ?

        DaveK

-- 
 All your base are belong to us!


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