Attempting to build a SCL for Fedora 20 for ruby193+rails4 I've run into the issue where the ruby193-ruby-libs package doesn't provide libruby.so.1.9()(64bit) which causes failures:

$ rpm -qp --provides /var/lib/mock/ruby193-fedora-20-x86_64/result/ruby193-ruby-libs-1.9.3.484-44.fc20.x86_64.rpm 
ruby193-ruby(abi) = 1.9.1
ruby193-ruby-libs = 1.9.3.484-44.fc20
ruby193-ruby-libs(x86-64) = 1.9.3.484-44.fc20
scl-package(ruby193) 


DEBUG util.py:264:  Getting requirements for ruby193-rubygem-bacon-1.1.0-8.fc20.src
DEBUG util.py:264:   --> ruby193-rubygems-devel-1.8.23-44.fc20.noarch
DEBUG util.py:264:  Error: Package: ruby193-ruby-libs-1.9.3.484-44.fc20.x86_64 (local_build_repo)
DEBUG util.py:264:             Requires: libruby.so.1.9()(64bit)
DEBUG util.py:264:  Error: Package: ruby193-rubygem-bigdecimal-1.1.0-44.fc20.x86_64 (local_build_repo)
DEBUG util.py:264:             Requires: libruby.so.1.9()(64bit)
DEBUG util.py:264:  Error: Package: ruby193-rubygem-io-console-0.3-44.fc20.x86_64 (local_build_repo)
DEBUG util.py:264:             Requires: libruby.so.1.9()(64bit)
DEBUG util.py:264:  Error: Package: ruby193-ruby-1.9.3.484-44.fc20.x86_64 (local_build_repo)
DEBUG util.py:264:             Requires: libruby.so.1.9()(64bit)
DEBUG util.py:264:   You could try using --skip-broken to work around the problem
DEBUG util.py:264:   You could try running: rpm -Va --nofiles --nodigest


I spoke with Vit(CC'd) on irc and he found this commit in the scl-utils git repo that appears to be causing the issue.

https://git.fedorahosted.org/cgit/scl-utils.git/commit/?id=7c41749b629865b125acfd28387883b0a80961a5

$ git show 7c41749b629865b
commit 7c41749b629865b125acfd28387883b0a80961a5
Author: Jan Zeleny <jzeleny>
Date:   Fri Sep 27 12:56:12 2013 +0200

    Don't generate provides from sonames in the SCL root

diff --git a/macros.scl b/macros.scl
index 1cc00ae..f961482 100644
--- a/macros.scl
+++ b/macros.scl
@@ -69,6 +69,7 @@ package or when debugging this package.
 %{nil}}
 BuildRequires: scl-utils-build
 Provides: scl-package(%scl)
+%global __provides_exclude_from ^(%{_libdir}/*.so.*)$
 }
 %{?scl_package_override:%scl_package_override}
 }

When building with an older version of scl-utils/scl-utils-build the package builds properly:

$ rpm -qp --provides /var/lib/mock/ruby193-fedora-20-x86_64/result/ruby193-ruby-libs-1.9.3.484-44.fc20.x86_64.rpm 
libruby.so.1.9()(64bit)  
ruby193-ruby(abi) = 1.9.1
ruby193-ruby-libs = 1.9.3.484-44.fc20
ruby193-ruby-libs(x86-64) = 1.9.3.484-44.fc20
scl-package(ruby193)