[], [enable_extras=yes])
if test "x$enable_extras" = xyes; then
AC_PATH_PROG([GPERF], [gperf])
+ if test -z "$GPERF"; then
+ AC_MSG_ERROR([gperf is needed])
+ fi
PKG_CHECK_MODULES([GLIB], [glib-2.0 >= 2.7.0 gobject-2.0 >= 2.7.0])
AC_SUBST([GLIB_CFLAGS])