Log message:
Merge changes in packages from the buildlink2 branch that have
buildlink2.mk files back into the main trunk.  This provides sufficient
buildlink2 infrastructure to start merging other packages from the
buildlink2 branch that have already been converted to use the buildlink2
framework.

Log message:
Add some necessary REPLACE_BUILDLINK_SED and BUILDLINK_CONFIG_WRAPPER_SED
lines so that -Ixxx/include/freetype2 will properly translate into
-I${BUILDLINK_DIR}/include/freetype2.  This should fix problems with not
finding the freetype2 headers.

Log message:
Add new private variables _REQUIRE_BUILTIN_* that can be used to specify
that the headers/libraries must be part of the standard X11 distribution or
else they aren't symlinked into ${BUILDLINK_DIR}.  These are meant to be
used only by x11-links, and is to allow x11-links to contain all of the
parts of the standard X11 distribution.

Log message:
Update mirror list.