ExtUtils::MakeMaker patch request

[Alan Burlison]

I've an existing module (PerlGcc) on CPAN that allows you to use gcc 
instead of the Sun compilers to compile modules for use with the perl we 
ship in Solaris.  At the moment this needs a very minor weak to 
MakeMaker.pm to get it to work, but I'm having to ship a copy of 
MakeMaker with PerlGcc, which is a pain to put it mildly as I have to 
keep tracking MakeMaker releases.  I'd like to propose a minor 
modification to MakeMaker that would allow me to prevent the 
cross-checking of the perl version being used with the location of it's 
Config.pm - my PerlGcc module works by setting PERL5LIB so that a 
replacement gcc-ized Config.pm is picked up instead of the default.

If at all possible I'd like this to go into 5.8.3.

I've attached a suggested patch below, I'm not bothered what the 
environment variable is called, and I'd be grateful for any better 
suggesions on how this might be achieved, if you have any!

Thanks,

Alan Burlison
*** MakeMaker.pm.orig   Mon Dec 15 15:15:23 2003
--- MakeMaker.pm        Mon Dec 15 15:20:20 2003
***************
*** 499,505 ****
      $self->init_DIRFILESEP;
      $self->init_linker;
  
!     if (! $self->{PERL_SRC} ) {
          require VMS::Filespec if $Is_VMS;
          my($pthinks) = $self->canonpath($INC{'Config.pm'});
          my($cthinks) = $self->catfile($Config{'archlibexp'},'Config.pm');
--- 499,505 ----
      $self->init_DIRFILESEP;
      $self->init_linker;
  
!     if (! $self->{PERL_SRC} && ! exists($ENV{PERL5_OVERRIDE_CONFIG})) {
          require VMS::Filespec if $Is_VMS;
          my($pthinks) = $self->canonpath($INC{'Config.pm'});
          my($cthinks) = $self->catfile($Config{'archlibexp'},'Config.pm');