nixpkgs/pkgs/development/interpreters/perl/setup-hook-cross.sh
Shea Levy 306d5cdf03
perlPackages: Add cross-compilation support.
This involved:

* Installing miniperl as $dev/bin/perl
* Setting miniperl to take INC from
  lib/perl5/{site_perl/,}cross_perl/${version} as well as
  lib/perl5/{site_perl/,}/${version}/${runtimeArch}, in that
  order. miniperl taking from runtimeArch is not really correct, but
  it works in some pure-perl cases (e.g. Config.pm) and can be
  overridden with the cross_perl variant.
* Installing perl-cross's stubs into
  $dev/lib/perl5/cross_perl/${version}
* Patching MakeMaker.pm to gracefully degrade (very slightly) if B.pm
  can't be loaded, which it can't in cross-compilation.
* Passing the right build-time and runtime perls to Makefile.PL
2018-02-28 15:01:32 -05:00

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addPerlLibPath () {
addToSearchPath PERL5LIB $1/lib/perl5/site_perl/@version@
addToSearchPath PERL5LIB $1/lib/perl5/site_perl/cross_perl/@version@
# Adding the arch-specific directory is morally incorrect, as
# miniperl can't load the native modules there. However, it can
# (and sometimes needs to) load and run some of the pure perl
# code there, so we add it anyway. When needed, stubs can be put
# into $1/lib/perl5/site_perl/cross_perl/@version@
addToSearchPath PERL5LIB $1/lib/perl5/site_perl/@version@/@runtimeArch@
}
addEnvHooks "$targetOffset" addPerlLibPath