NAME 

README.irix - Perl version 5 on Irix systems

DESCRIPTION 

This document describes various features of Irix that will affect how Perl version 5 (hereafter just Perl) is compiled and/or runs.

Building 32-bit Perl in Irix 

Use 
        sh Configure -Dcc='cc -n32'

to compile Perl 32-bit. Don't bother with -n32 unless you have 7.1 or later compilers (use cc -version to check).

(Building 'cc -n32' is the default.)

Building 64-bit Perl in Irix 

Use 
        sh Configure -Dcc='cc -64' -Duse64bitint

This requires require a 64-bit MIPS CPU (R8000, R10000, ...)

You can also use 

        sh Configure -Dcc='cc -64' -Duse64bitall

but that makes no difference compared with the -Duse64bitint because of the "cc -64".

You can also do 

        sh Configure -Dcc='cc -n32' -Duse64bitint

to use long longs for the 64-bit integer type, in case you don't have a 64-bit CPU.

If you are using gcc, just 

        sh Configure -Dcc=gcc -Duse64bitint

should be enough, the Configure should automatically probe for the correct 64-bit settings.