Mikie wrote:
> Hello all,
>
> I am at 5.8 Adjusting the Tools chain.
>
> ... and I am really confused.
>
> Here is the command:
>
> SPECS=`dirname $($LFS_TGT-gcc -print-libgcc-file-name)`/specs
> $LFS_TGT-gcc -dumpspecs | sed \ -e 's@/lib\(64\)\?/ld@/tools&@g' \
> -e "/^\*cpp:$/{n;s,$, -isystem /tools/include,}" > $SPECS
> echo "New specs file is: $SPECS"
> unset SPECS
>
>
> Now I am a beginner here but this looks like we construct an external
> SPECS file (the internal one is compiled with GCC ???? is that
> right??).
>
> Where is this file?
>
> When I run it I get New specs file is: $SPECS as if the $SPECS
> variable is null.
It is a rather complex construct. When you need to check something like
this, break it down:
dirname $($LFS_TGT-gcc -print-libgcc-file-name)
You are the user lfs and $LFS_TGT is defined, right? It should be:
i686-lfs-linux-gnu for a 32-bit system and x86_64-lfs-linux-gnu for a
64-bit system.
Then you can run '$LFS_TGT-gcc -dumpspecs' and see what it is giving.
We are using sed to change a couple of directory paths to /tools so the
right version of gcc is used.
-- Bruce
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