add pkg-config files for libFLAC and libFLAC++ (SF#1647881: http://sourceforge.net/tracker/index.php?func=detail&aid=1647881&group_id=13478&atid=313478)

configure.in

@@ -285,6 +285,7 @@ AC_CONFIG_FILES([ \
 	Makefile \
 	src/Makefile \
 	src/libFLAC/Makefile \
+	src/libFLAC/flac.pc \
 	src/libFLAC/ia32/Makefile \
 	src/libFLAC/ppc/Makefile \
 	src/libFLAC/ppc/as/Makefile \
@@ -293,6 +294,7 @@ AC_CONFIG_FILES([ \
 	src/libFLAC/include/private/Makefile \
 	src/libFLAC/include/protected/Makefile \
 	src/libFLAC++/Makefile \
+	src/libFLAC++/flac++.pc \
 	src/flac/Makefile \
 	src/metaflac/Makefile \
 	src/monkeys_audio_utilities/Makefile \

src/libFLAC++/Makefile.am

@@ -33,8 +33,12 @@ lib_LTLIBRARIES = libFLAC++.la
 m4datadir = $(datadir)/aclocal
 m4data_DATA = libFLAC++.m4
 
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = flac++.pc
+
 EXTRA_DIST = \
 	Makefile.lite \
+	flac++.pc.in \
 	libFLAC++_dynamic.dsp \
 	libFLAC++_static.dsp \
 	libFLAC++.m4

src/libFLAC/Makefile.am

@@ -76,8 +76,12 @@ SUBDIRS = $(ARCH_SUBDIRS) include .
 m4datadir = $(datadir)/aclocal
 m4data_DATA = libFLAC.m4
 
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = flac.pc
+
 EXTRA_DIST = \
 	Makefile.lite \
+	flac.pc.in \
 	libFLAC_dynamic.dsp \
 	libFLAC_static.dsp \
 	libFLAC.m4