lib: Add support for pkgconfig for libopenvswitch.

Add rule to generate pkgconfig .pc file from configure.
Install pkg-config file to $(libdir)/pkgconfig

Signed-off-by: Rob Adams <readams@readams.net>
Acked-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>

AUTHORS

@@ -124,6 +124,7 @@ Reid Price              reid@nicira.com
 Remko Tronçon           git@el-tramo.be
 Rich Lane               rlane@bigswitch.com
 Rishi Bamba             rishi.bamba@tcs.com
+Rob Adams               readams@readams.net
 Rob Hoes                rob.hoes@citrix.com
 Romain Lenglet          romain.lenglet@berabera.info
 Ryan Wilson             wryan@nicira.com

Makefile.am

@@ -126,8 +126,10 @@ scripts_SCRIPTS =
 scripts_DATA =
 SUFFIXES =
 check_DATA =
+pkgconfig_DATA =
 
 scriptsdir = $(pkgdatadir)/scripts
+pkgconfigdir = $(libdir)/pkgconfig
 
 # This ensures that files added to EXTRA_DIST are always distributed,
 # even if they are inside an Automake if...endif conditional block that is

configure.ac

@@ -172,6 +172,7 @@ AC_CONFIG_FILES(datapath/linux/Kbuild)
 AC_CONFIG_FILES(datapath/linux/Makefile)
 AC_CONFIG_FILES(datapath/linux/Makefile.main)
 AC_CONFIG_FILES(tests/atlocal)
+AC_CONFIG_FILES(lib/libopenvswitch.pc)
 
 dnl This makes sure that include/openflow gets created in the build directory.
 AC_CONFIG_COMMANDS([include/openflow/openflow.h.stamp])

lib/.gitignore

@@ -17,3 +17,4 @@
 /vtep-idl.c
 /vtep-idl.h
 /vtep-idl.ovsidl
+/libopenvswitch.pc

lib/automake.mk

@@ -390,6 +390,9 @@ else
 lib_libopenvswitch_la_SOURCES += lib/stream-nossl.c
 endif
 
+pkgconfig_DATA += \
+	$(srcdir)/lib/libopenvswitch.pc
+
 EXTRA_DIST += \
 	lib/dh1024.pem \
 	lib/dh2048.pem \

lib/libopenvswitch.pc.in

@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libopenvswitch
+Description: Open vSwitch library
+Version: @VERSION@
+Libs: -L${libdir} -lopenvswitch
+Libs.private: @LIBS@
+Cflags: -I${includedir}/openvswitch