gas/gld installation during bootstrap -- how to unpack?

[Frederick W. Wheeler]

EGCS list,

I'd like to have "make bootstrap" build and use gas and gld, but I
don't understand exactly what is meant by "if they have been properly
unpacked into the egcs source tree" in the installation instructions I
have quoted below.

Thank you,
Fred Wheeler
wheeler@ipl.rpi.edu

From: http://egcs.cygnus.com/install/build.html
> For a native build issue the command "make bootstrap". This will build
> the entire egcs compiler system, which includes the following steps:
> 
>     Build host tools necessary to build the compiler such as texinfo,
>     bison, gperf.
> 
>     Build target tools for use by the compiler such as gas, gld, and
>     binutils if they have been properly unpacked into the egcs source
>     tree.
> 
>     Perform a 3-stage bootstrap of the compiler.
> 
>     Perform a comparison test of the stage2 and stage3 compilers.
> 
>     Build runtime libraries using the stage3 compiler from the
>     previous step.