Log message:
Bump PKGREVISION for libpng shlib name change.
Also add some patches to remove use of deprecated symbols and fix other
problems when looking for or compiling against libpng-1.4.x.

Log message:
Recursive revision bump for GMP update.

Log message:
Recursive bump for libltdl

Log message:
Remove @dirrm entries from PLISTs

Log message:
Recursive ABI depends update and PKGREVISION bump for readline-6.0 shlib
major change.

Reported by Robert Elz in PR 41345.

Log message:
Simply and speed up buildlink3.mk files and processing.
This changes the buildlink3.mk files to use an include guard for the
recursive include. The use of BUILDLINK_DEPTH, BUILDLINK_DEPENDS,
BUILDLINK_PACKAGES and BUILDLINK_ORDER is handled by a single new
variable BUILDLINK_TREE. Each buildlink3.mk file adds a pair of
enter/exit marker, which can be used to reconstruct the tree and
to determine first level includes. Avoiding := for large variables
(BUILDLINK_ORDER) speeds up parse time as += has linear complexity.
The include guard reduces system time by avoiding reading files over and
over again. For complex packages this reduces both %user and %sys time to
half of the former time.

Log message:
Mark as destdir ready.

Log message:
fix HOMEPAGE.

Log message:
fix INFO_FILES to YES

Log message:
Guile-Cairo wraps the Cairo graphics library for Guile Scheme.

Guile-Cairo is complete, wrapping almost all of the Cairo API. It is
API stable, providing a firm base on which to do graphics
work. Finally, and importantly, it is pleasant to use. You get a
powerful and well-maintained graphics library with all of the benefits
of Scheme: memory management, exceptions, macros, and a dynamic
programming environment.