File lttng-tools-fix-pkgconfig.patch of Package lttng-tools

--- a/src/lib/lttng-ctl/lttng-ctl.pc.in
+++ b/src/lib/lttng-ctl/lttng-ctl.pc.in
@@ -7,7 +7,7 @@ Name: LTTng control library
 Description: The LTTng control and utility library is a library used to control the tracing sessions of a LTTng-session daemon
 Version: @PACKAGE_VERSION@
 Requires:
-Requires.private:
+Requires.private: liburcu liburcu-cds
 Libs: -L${libdir} -llttng-ctl
 Cflags: -I${includedir}