Add a temporary compat-librpm3 subpackage

This makes it possible to go on with the F23 rpm update without needing
to rebuild all the dependant packages. In particular, grub2 is difficult
to get rebuilt as there's nobody around on the weekend who can build
packages that require secure boot signing.

rpm.spec

@@ -29,7 +29,7 @@
 Summary: The RPM package management system
 Name: rpm
 Version: %{rpmver}
-Release: %{?snapver:0.%{snapver}.}1%{?dist}
+Release: %{?snapver:0.%{snapver}.}2%{?dist}
 Group: System Environment/Base
 Url: http://www.rpm.org/
 Source0: http://rpm.org/releases/rpm-4.12.x/%{name}-%{srcver}.tar.bz2
@@ -159,6 +159,15 @@ Requires: rpm-plugin-selinux%{_isa} = %{version}-%{release}
 %description libs
 This package contains the RPM shared libraries.
 
+%package -n compat-librpm3
+Summary: Compat package with RPM libraries
+Group: Development/Libraries
+License: GPLv2+ and LGPLv2+ with exceptions
+Requires: rpm = %{version}-%{release}
+
+%description -n compat-librpm3
+Compatibility package with RPM libraries ABI version 3.
+
 %package build-libs
 Summary:  Libraries for building and signing RPM packages
 Group: Development/Libraries
@@ -387,6 +396,11 @@ do
 done
 %endif
 
+# Install compatibility libraries
+mkdir -p $RPM_BUILD_ROOT%{_libdir}
+cp -a %{_libdir}/librpmio.so.3* $RPM_BUILD_ROOT%{_libdir}
+cp -a %{_libdir}/librpm.so.3* $RPM_BUILD_ROOT%{_libdir}
+
 %find_lang %{name}
 
 find $RPM_BUILD_ROOT -name "*.la"|xargs rm -f
@@ -468,11 +482,15 @@ exit 0
 
 %files libs
 %defattr(-,root,root)
-%{_libdir}/librpmio.so.*
-%{_libdir}/librpm.so.*
+%{_libdir}/librpmio.so.7*
+%{_libdir}/librpm.so.7*
 %if %{with plugins}
 %dir %{_libdir}/rpm-plugins
 
+%files -n compat-librpm3
+%{_libdir}/librpmio.so.3*
+%{_libdir}/librpm.so.3*
+
 %files plugin-syslog
 %{_libdir}/rpm-plugins/syslog.so
 
@@ -552,6 +570,9 @@ exit 0
 %doc doc/librpm/html/*
 
 %changelog
+* Sat Sep 05 2015 Kalev Lember <klember@redhat.com> - 4.13.0-0.rc1.2
+- Add a temporary compat-librpm3 subpackage
+
 * Thu Sep 03 2015 Florian Festi <ffesti@rpm.org> - 4.13.0-0.rc1.1
 - Update to upstream rc1 release