RPM packaging: fix tdebindings build on opensuse tumbleweed

redhat/main/tdebindings/tdebindings-14.0.0.spec

@@ -173,17 +173,27 @@ BuildRequires:	ruby >= 1.8
 %if 0%{?fedora} >= 19
 BuildRequires:	rubypick
 %endif
+
+# Check for Ruby library directory
 %if "%{?ruby_libarchdir}" != ""
 %define ruby_arch %{?ruby_libarchdir}
 %else
+%if "%{?rb_archdir}" != ""
+%define ruby_arch %{?rb_archdir}
+%else
 %{!?ruby_arch: %define ruby_arch %(ruby -rrbconfig -e 'puts Config::CONFIG["archdir"]')}
 %endif
+%endif
 
 %if "%{?ruby_libdir}" != ""
 %define ruby_rubylibdir %{?ruby_libdir}
 %else
+%if "%{?rb_libdir}" != ""
+%define ruby_rubylibdir %{?rb_libdir}
+%else
 %{!?ruby_rubylibdir: %define ruby_rubylibdir %(ruby -rrbconfig -e 'puts Config::CONFIG["rubylibdir"]')}
 %endif
+%endif
 
 # Ruby 1.9 includes are located in strance directories ... (taken from ruby 1.9 spec file)
 %global	_normalized_cpu	%(echo %{_target_cpu} | sed 's/^ppc/powerpc/;s/i.86/i386/;s/sparcv./sparc/;s/armv.*/arm/')