Compiling with libplanfahr 3 LIBPLANFAHR Library Compiling with libplanfahrNotes on compiling Using pkg-config Like other GNOME libraries, libplanfahr uses pkg-config to provide compiler options. The package name is "libplanfahr-0.0". So in your configure script, you might specify something like: PKG_CHECK_MODULES(LIBPLANFAHR, [libplanfahr-0.0]) AC_SUBST(LIBPLANFAHR_CFLAGS) AC_SUBST(LIBPLANFAHR_LIBS) The "0.0" in the package name is the "API version" (indicating "the version of the libplanfahr API that first appeared in version 0.0") and is essentially just part of the package name. Headers Code using libplanfahr should do: #include <libplanfahr/planfahr.h> Including individual headers rather than planfahr.h is not recommended.