add a pkgconfig file

git-svn-id: https://svn.xiph.org/trunk/Tremor@17150 0101bb08-14d6-0310-b084-bc0e0c8e3800

Makefile.am

@@ -2,6 +2,9 @@ AUTOMAKE_OPTIONS = foreign
 
 INCLUDES = -I./
 
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = vorbisidec.pc
+
 lib_LTLIBRARIES = libvorbisidec.la
 
 libvorbisidec_la_SOURCES = mdct.c block.c window.c \
@@ -31,6 +34,8 @@ includedir = $(prefix)/include/tremor
 
 include_HEADERS = ivorbiscodec.h ivorbisfile.h ogg.h os_types.h config_types.h
 
+EXTRA_DIST = vorbisidec.pc.in
+
 example:
 	-ln -fs . vorbis
 	$(MAKE) ivorbisfile_example

configure.in

@@ -128,4 +128,4 @@ AC_SUBST(LIBS)
 AC_SUBST(DEBUG)
 AC_SUBST(PROFILE)
 
-AC_OUTPUT(Makefile Version_script)
+AC_OUTPUT(Makefile Version_script vorbisidec.pc)

vorbisidec.pc.in

+# libvorbisidec pkg-config source file
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: vorbisidec
+Description: vorbisidec is the integer Ogg Vorbis library
+Version: @VERSION@
+Requires: ogg
+Conflicts:
+Libs: -L${libdir} -lvorbisidec -lm
+Cflags: -I${includedir}