Add libicu dependency to libical-devel subpackage

libical.spec

@@ -1,7 +1,7 @@
 Summary:	Reference implementation of the iCalendar data type and serialization format
 Name:		libical
 Version:	2.0.0
-Release:	5%{?dist}
+Release:	6%{?dist}
 License:	LGPLv2 or MPLv1.1
 URL:		http://freeassociation.sourceforge.net/
 Source:		https://github.com/%{name}/%{name}/archive/v%{version}/%{name}-%{version}.tar.gz
@@ -21,6 +21,8 @@ used in dozens of calendaring and scheduling products.
 %package devel
 Summary:	Development files for libical
 Requires:	%{name}%{?_isa} = %{version}-%{release}
+Requires:	pkgconfig(icu-i18n)
+Requires:	pkgconfig(icu-uc)
 
 %description devel
 The libical-devel package contains libraries and header files for developing 
@@ -72,6 +74,9 @@ make test ARGS="-V" -C %{_target_platform}
 %{_includedir}/libical/
 
 %changelog
+* Mon Feb 08 2016 Milan Crha <mcrha@redhat.com> - 2.0.0-6
+- Add libicu dependency to libical-devel subpackage
+
 * Tue Feb 02 2016 Milan Crha <mcrha@redhat.com> - 2.0.0-5
 - Build with libicu, to enable RSCALE support