libsmooth: Make it its own package.

src/libsmooth/libsmooth.pc.in

@@ -0,0 +1,18 @@
+#  This file is part of the libsmooth library.
+#
+#  libsmooth is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU Lesser General Public License as published by
+#  the Free Software Foundation; either version 2.1 of the License, or
+#  (at your option) any later version.
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libsmooth
+Description: libsmooth library
+URL: @PACKAGE_URL@
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lsmooth
+Cflags: -I${includedir}