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Re: Perl In, Perl Out...

by toma (Vicar)
on Jun 07, 2001 at 23:56 UTC ( [id://86704] : note . print w/replies, xml ) Need Help??

in reply to Perl In, Perl Out...

I like to install a perl that is in a completely different directory than the system perl. I have a script that unpacks the perl distribution, runs configure, and installs the modules such as DBD. I have to be very careful when the script installs the modules that the step
perl Makefile.PL
runs the correct perl, so I just give it the full path:
/home/username/perl5/bin/perl Makefile.PL
Also, I am careful to use separate directory trees for the perl build and the perl installation. So I compile perl in /home/username/perl5_build. I compile the modules in /home/username/perl5_build/modules.

I developed this methodology to make my perl builds reproducible and not depend on ppm working properly. I like ppm but I have seen it get confused and trash things too many times. Building everything from source is tedious but I have found it to be worthwhile and rewarding.

Other advantages of this approach are :

  • I can install a new version of perl in a new directory and try it without losing my old version.
  • When I change to using a different computer my perl environment moves with my home directory.
  • My script documents my build so that someone else can reproduce my system.
It should work perfectly the first time! - toma