guix/gnu/packages/patches/perl-source-date-epoch.patch
Ludovic Courtès 4187fe750f gnu: perl: Build deterministically, and make byproducts deterministic.
With this, a --rounds=2 build passes, and timestamps in POD files can be
controlled with 'SOURCE_DATE_EPOCH'.

* gnu/packages/patches/perl-deterministic-ordering.patch,
gnu/packages/patches/perl-no-build-time.patch,
gnu/packages/patches/perl-source-date-epoch.patch: New files.
* gnu/packages/perl.scm (perl)[source]: Use them.
* gnu-system.am (dist_patch_DATA): Add them.
2015-12-13 11:28:54 +01:00

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Diff

Adapted from <https://bugs.debian.org/801621>.
Make Pod::Man honor the SOURCE_DATE_EPOCH environment variable.
--- perl-5.22.0/cpan/podlators/lib/Pod/Man.pm 2015-12-12 22:33:03.321787590 +0100
+++ perl-5.22.0/cpan/podlators/lib/Pod/Man.pm 2015-12-12 22:36:33.367361338 +0100
@@ -884,7 +884,12 @@ sub devise_date {
my ($self) = @_;
my $input = $self->source_filename;
my $time;
- if ($input) {
+
+ if (defined($ENV{SOURCE_DATE_EPOCH}) &&
+ $ENV{SOURCE_DATE_EPOCH} !~ /\D/) {
+ $time = $ENV{SOURCE_DATE_EPOCH};
+ }
+ elsif ($input) {
$time = (stat $input)[9] || time;
} else {
$time = time;