handle upgrade path for introduction of -doc subpkg in 1.3.19-4

GraphicsMagick.spec

@@ -33,7 +33,7 @@
 Summary: An ImageMagick fork, offering faster image generation and better quality
 Name: GraphicsMagick
 Version: 1.3.19
-Release: 5%{?dist}
+Release: 6%{?dist}
 
 License: MIT
 Group: Applications/Multimedia
@@ -75,6 +75,9 @@ BuildRequires: zlib-devel
 ## FIXME: %%check stuff
 #BuildRequires: xorg-x11-server-Xvfb
 
+# upgrade path for introduction of -doc subpkg in 1.3.19-4
+Obsoletes: GraphicsMagick < 1.3.19-4
+
 # depend on stuff referenced below
 # --with-gs-font-dir=%{_datadir}/fonts/default/Type1
 Requires: urw-fonts
@@ -103,6 +106,8 @@ however.
 %package doc
 Summary: GraphicsMagick documentation
 Group: Documentation
+# upgrade path for introduction of -doc subpkg in 1.3.19-4
+Obsoletes: GraphicsMagick < 1.3.19-4
 %{!?el5:BuildArch: noarch}
 
 %description doc
@@ -317,6 +322,9 @@ rm -rf %{buildroot}
 
 
 %changelog
+* Sun May 11 2014 Rex Dieter <rdieter@fedoraproject.org> 1.3.19-6
+- handle upgrade path for introduction of -doc subpkg in 1.3.19-4
+
 * Mon Feb 03 2014 Remi Collet <remi@fedoraproject.org> - 1.3.19-5
 - upstream patch, drop debug output (#1060665)