pngquant now requires libimagequant with same version

pngquant.spec

@@ -2,7 +2,7 @@
 
 Name:       pngquant
 Version:    2.4.2
-Release:    2%{?dist}
+Release:    3%{?dist}
 Summary:    PNG quantization tool for reducing image file size
 %{?el5:Group:   Applications/Multimedia}
 
@@ -21,6 +21,7 @@ BuildRequires:  gcc%{?_isa} >= 4.2-1
 BuildRequires:  lcms2-devel
 Requires:       libpng%{?_isa} >= 1.2.46-1
 Requires:       zlib%{?isa} >= 1.2.3-1
+Requires:       %{libname} = %{version}-%{release}
 
 
 %description
@@ -122,6 +123,9 @@ install -Dpm0644 pngquant.1 %{buildroot}/%{_mandir}/man1/pngquant.1
 
 
 %changelog
+* Sat Jun 20 2015 Sérgio Basto <sergio@serjux.com> - 2.4.2-3
+- pngquant now requires libimagequant with same version
+
 * Thu Jun 18 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.4.2-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild