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:
Update devel/pcre-ocaml to 5.15.0.
Patch privided by PR 39348.

Changes:
2008-05-06:  Fixed build problem with newer versions of PCRE.

2008-03-14:  Synced with Jane Street tree.

2008-01-25:  Added new function:

               * names

             This function returns the names of all named substrings in a
             regular expression.

             Thanks to Benedikt Grundmann <bgrundmann@janestcapital.com>
             for the patch!

2007-07-12:  Improved build scripts for Windows.

             Thanks to Christophe Troestler
             <Christophe.Troestler@umh.ac.be> for the patch!

2007-07-12:  Improved documentation for Win32 builds, and added some build
             scripts usable on Windows.

             Thanks to Christophe Troestler
             <Christophe.Troestler@umh.ac.be> for this contribution!

2007-04-23:  callback_exn -> caml_callback_exn.

             Updated OCamlMakefile.

Log message:
Second round of explicit pax dependencies. As reminded by tnn@,
many packages used to use ${PAX}. Use the common way of directly calling
pax, it is created as tool after all.

Log message:
Resign from maintaining a lot of packages, so everyone is free to update
them at will.

Log message:
Only a few architectures can handle native code. For all the others,
generating byte-code only must suffice.

Patch provided in PR 36049 by Jaap Boender.

Log message:
Update devel/pcre-ocaml to 5.11.2

OcamlMakefile fixes

Log message:
Add buildlink3.mk file.

Log message:
ocaml-findlib-register is used during bin-install, so
it is needed during installation. Use DEPENDS instead of BUILD_DEPENDS on
ocaml-findlib for this reason. Bump PKGREVISION.

Log message:
Imported pcre-ocaml.

This OCaml-library interfaces the PCRE (Perl-compatible regular
expressions) library which is written in C. it can be used for matching
regular expressions which are written in "Perl"-style.