libipq: add pkgconfig file

This is just to make sure that projects (still) using it do so with
the right cflags, e.g. for when the include file ends up in a
non-standard location due to ./configure having been called with
--include=/somewhere/else.

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

configure.ac

@@ -111,6 +111,7 @@ AC_SUBST([libxtables_vmajor])
 
 AC_CONFIG_FILES([Makefile extensions/GNUmakefile include/Makefile
 	iptables/Makefile iptables/xtables.pc
-	libipq/Makefile libiptc/Makefile libiptc/libiptc.pc utils/Makefile
+	libipq/Makefile libipq/libipq.pc
+	libiptc/Makefile libiptc/libiptc.pc utils/Makefile
 	include/xtables.h include/iptables/internal.h])
 AC_OUTPUT

libipq/.gitignore

@@ -0,0 +1 @@
+/libipq.pc

libipq/Makefile.am

@@ -9,3 +9,5 @@ man_MANS         = ipq_create_handle.3 ipq_destroy_handle.3 ipq_errstr.3 \
                    ipq_get_msgerr.3 ipq_get_packet.3 ipq_message_type.3 \
                    ipq_perror.3 ipq_read.3 ipq_set_mode.3 ipq_set_verdict.3 \
                    libipq.3
+
+pkgconfig_DATA = libipq.pc

libipq/libipq.pc.in

@@ -0,0 +1,11 @@
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name:		libipq
+Description:	Interface to the (old) ip_queue mechanism
+Version:	@PACKAGE_VERSION@
+Libs:		-L${libdir} -lipq
+Cflags:		-I${includedir}