add %%global debug_package %%{nil} to avoid empty debuginfo-pkg

uthash.spec

@@ -1,10 +1,12 @@
 # This package builds a header-only lib, but has some testsuite to check
 # the headers' function.  For this reason the main-pkg is build arched and
-# produces a noarched subpkg, only.
+# produces a noarched subpkg, only.  There is no binary-compiled bits and
+# therefore no debuginfo generated.
+%global debug_package %{nil}
 
 Name:           uthash
 Version:        1.9.9
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        A hash table for C structures
 License:        BSD
 URL:            http://troydhanson.github.io/uthash
@@ -44,6 +46,9 @@ cd tests && make %{?_smp_mflags}
 %{_includedir}/ut*.h
 
 %changelog
+* Wed May 28 2014 Björn Esser <bjoern.esser@gmail.com> - 1.9.9-6
+- add `%%global debug_package %%{nil}` to avoid empty debuginfo-pkg.
+
 * Thu May 22 2014 Björn Esser <bjoern.esser@gmail.com> - 1.9.9-5
 - revert "Root package should be noarch too".
 - add provides %%{name} for -devel subpkg.