[ruby: 5/5] Fix "invalid regex" warning for non-rubygem packages (rhbz#1154067).

[Vít Ondruch]

commit 4375d5ca30bd504cc01fef2239e430db2f5b23a1
Author: Vít Ondruch <vondruch at redhat.com>
Date:   Thu Oct 30 13:59:52 2014 +0100

    Fix "invalid regex" warning for non-rubygem packages (rhbz#1154067).

 ruby.spec     |    1 +
 rubygems.attr |    4 +++-
 2 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/ruby.spec b/ruby.spec
index 18aee30..e1f6dbf 100644
--- a/ruby.spec
+++ b/ruby.spec
@@ -865,6 +865,7 @@ make check TESTS="-v $DISABLE_TESTS"
 * Wed Oct 29 2014 Vít Ondruch <vondruch at redhat.com> - 2.1.4-23
 - Update to Ruby 2.1.4.
 - Include only vendor directories, not their content (rhbz#1114071).
+- Fix "invalid regex" warning for non-rubygem packages (rhbz#1154067).
 - Use load macro introduced in RPM 4.12.
 
 * Mon Aug 18 2014 Fedora Release Engineering <rel-eng at lists.fedoraproject.org>
diff --git a/rubygems.attr b/rubygems.attr
index f711775..f033d43 100644
--- a/rubygems.attr
+++ b/rubygems.attr
@@ -1,3 +1,5 @@
 %__rubygems_requires	%{_rpmconfigdir}/rubygems.req
 %__rubygems_provides	%{_rpmconfigdir}/rubygems.prov
-%__rubygems_path	^%{gem_spec}$
+# In non-gem packages, the %%{gem_name} macro is not available and the macro
+# stays unexpanded which leads to "invalid regex" error (rhbz#1154067).
+%__rubygems_path	^%{?gem_name:%{gem_spec}}%{!?gem_name:this_should_never_match_anything}$