build: set Libs.private for pkgconfig file

Similar to the commit in iptables, add Libs.private to tell about
dependencies for static linking.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>

diff --git a/libnetfilter_queue.pc.in b/libnetfilter_queue.pc.in
index 962c686..9c6c2c4 100644 (file)
--- a/libnetfilter_queue.pc.in
+++ b/libnetfilter_queue.pc.in
@@ -12,4 +12,5 @@ Version: @VERSION@
 Requires: libnfnetlink
 Conflicts:
 Libs: -L${libdir} -lnetfilter_queue
+Libs.private: @LIBNFNETLINK_LIBS@
 Cflags: -I${includedir}