From bd9a915ea0ea1fb85158197a2be6e06ff72bd534 Mon Sep 17 00:00:00 2001
From: Vít Ondruch <vondruch@redhat.com>
Date: Jun 19 2019 13:44:47 +0000
Subject: Set SOURCE_DATE_EPOCH to make the build reproducible.


The timestamp of generated documentation changes from build to build.
This makes the builds not reproducible, because the timestamp changes.
RDoc has allows to override the timestamps via SOURCE_DATE_EPOCH
environment variable, which was intdouced by following PRs:

https://github.com/ruby/rdoc/pull/569/
https://github.com/ruby/rdoc/pull/570

This is related to rhbz#1719647. Nevertheless, that specific issue is
for plaid ruby- packages, so these macros cannot help with that specific
case.

---

diff --git a/macros.rubygems b/macros.rubygems
index 532ea6c..19567f6 100644
--- a/macros.rubygems
+++ b/macros.rubygems
@@ -21,6 +21,7 @@
 %gem_install(d:n:) \
 mkdir -p %{-d*}%{!?-d:.%{gem_dir}} \
 \
+SOURCE_DATE_EPOCH=$(stat --printf='%Y' %{SOURCE0}) \\\
 CONFIGURE_ARGS="--with-cflags='%{optflags}' --with-cxxflags='%{optflags}' $CONFIGURE_ARGS" \\\
 gem install \\\
         -V \\\