Can't load generated lib/buildcustomize.pl:  at write_buildcustomize.pl line 101.
makefile:374: recipe for target 'lib/buildcustomize.pl' failed
make: *** [lib/buildcustomize.pl] Error 13
make: *** Waiting for unfinished jobs....
 * ERROR: dev-lang/perl-5.20.2::gentoo failed (compile phase):
 *   emake failed
 *
 * If you need support, post the output of `emerge --info '=dev-lang/perl-5.20.2::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-lang/perl-5.20.2::gentoo'`.
 * The complete build log is located at '/var/tmp/portage/dev-lang/perl-5.20.2/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-lang/perl-5.20.2/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-lang/perl-5.20.2/work/perl-5.20.2'
 * S: '/var/tmp/portage/dev-lang/perl-5.20.2/work/perl-5.20.2'

>>> Failed to emerge dev-lang/perl-5.20.2, Log file:

>>>  '/var/tmp/portage/dev-lang/perl-5.20.2/temp/build.log'

 * Messages for package dev-lang/perl-5.20.2:

 * ERROR: dev-lang/perl-5.20.2::gentoo failed (compile phase):
 *   emake failed
 *
 * If you need support, post the output of `emerge --info '=dev-lang/perl-5.20.2::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-lang/perl-5.20.2::gentoo'`.
 * The complete build log is located at '/var/tmp/portage/dev-lang/perl-5.20.2/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-lang/perl-5.20.2/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-lang/perl-5.20.2/work/perl-5.20.2'
 * S: '/var/tmp/portage/dev-lang/perl-5.20.2/work/perl-5.20.2'