Conditionalize weak dependencies

ant.spec

@@ -36,7 +36,7 @@
 
 Name:           ant
 Version:        1.10.1
-Release:        1%{?dist}
+Release:        2%{?dist}
 Epoch:          0
 Summary:        Java build tool
 Summary(it):    Tool per la compilazione di programmi java
@@ -62,7 +62,7 @@ BuildRequires:  xz-java
 
 # Theoretically Ant might be usable with just JRE, but typical Ant
 # workflow requires full JDK, so we recommend it here.
-Recommends:     java-devel >= 1:1.8.0
+%{?fedora:Recommends}%{!?fedora:Requires}: java-devel >= 1:1.8.0
 
 Requires:       xerces-j2
 Requires:       xml-commons-apis
@@ -611,6 +611,9 @@ cp -pr build/javadocs/* $RPM_BUILD_ROOT%{_javadocdir}/%{name}
 # -----------------------------------------------------------------------------
 
 %changelog
+* Thu Feb 16 2017 Mikolaj Izdebski <mizdebsk@redhat.com> - 0:1.10.1-2
+- Conditionalize weak dependencies
+
 * Wed Feb 15 2017 Michael Simacek <msimacek@redhat.com> - 0:1.10.1-1
 - Update to upstream version 1.10.1