[openjdk / icedtea patch] allow to build with versioned compiler

[Matthias Klose]

Thomas Fitzsimmons schrieb:
> Matthias Klose wrote:
>> its somewhat difficult to set the compiler to something different than
>> gcc/g++.
>> Adding another bin dir to PATH doesn't work because the compiler is
>> called with
>> an absolute path (why)? Adding a GCC_VERSION macro (which can be set
>> in the
>> environment), works for me to build using a specific compiler version.
> 
> This looks fine; can you test it for b20, add the Makefile.am bits and
> resubmit?

this works unmodified with b21. Not sure, what you do mean by adding
"Makefile.am bits".

  Matthias