Set up gcc environment - 3.4.6

That line of output suggests to me that gcc-3.4.6 is not the compiler that actually built this perl.

Can you build any perl extension at all ?
Try with Math-FFT - which should be trivial to build. Does it build ok for you ?

Unrecognized argument in LIBS ignored: '/opt/netcool/precision/perl/lib/5.8.8/sun4-solaris-thread-multi/CORE/libperl.a'

That probably means it's not going to try to link to libperl.a .... which probably means that symbols such as 'Perl_Top_ptr', 'Perl_Ieval_root_ptr', 'Perl_dounwind', etc. will be undefined.

Cheers,
Rob