diff --git a/texlive.spec b/texlive.spec
index b4cf01c..5078b11 100644
--- a/texlive.spec
+++ b/texlive.spec
@@ -3410,10 +3410,11 @@ popd
     pushd ${prefix}/lib/pkgconfig/
     for pc in kpathsea ptexenc texlua52 texluajit synctex
     do
-	sed -ir '/^prefix=/s/=.*/=\/usr/
+	sed -ir '/^prefix=/s|=.*|=/usr|
+		 /^exec_prefix=/s|=.*|=/usr|
 		 /^libdir=/s|=.*|=%{_libdir}|
 		 /^includedir=/s|=.*|=%{_includedir}|' $pc.pc
-	install $pc.pc %{buildroot}%{_libdir}/pkgconfig/
+	install -m 0644 $pc.pc %{buildroot}%{_libdir}/pkgconfig/
     done
     popd
 
@@ -3456,11 +3457,16 @@ rm -f /var/run/texlive/run-update
 %post   -n libptexenc1 -p /sbin/ldconfig
 %postun -n libptexenc1 -p /sbin/ldconfig
 
-%post   synctex-bin -p /sbin/ldconfig
-%postun synctex-bin -p /sbin/ldconfig
+%post   -n libsynctex1 -p /sbin/ldconfig
+%postun -n libsynctex1 -p /sbin/ldconfig
 
-%post   luatex-bin -p /sbin/ldconfig
-%postun luatex-bin -p /sbin/ldconfig
+%post   -n libtexlua5 -p /sbin/ldconfig
+%postun -n libtexlua5 -p /sbin/ldconfig
+
+%if %{with LuaJIT}
+%post   -n libtexluajit2 -p /sbin/ldconfig
+%postun -n libtexluajit2 -p /sbin/ldconfig
+%endif
 
 %files
 %defattr(-,root,root,755)