Add missing README for the pam case.
Use flex and patch "'struct tm' has no member named 'tm_zone'" error on SunOS
Adjust path to pci.h in the same way as on netbsd and link network libs on SunOS
libcaca.so references stuff from zlib, fixes misc/toilet
Rename variables to avoid use of reserved identifiers.
Fix from upstream: https://github.com/matplotlib/matplotlib/issues/2463
bulk build suggested readline
Remove special handling of -v in the wrappers.

This was originally introduced to work around some behaviour in the
libtool build, however these days it is actively harmful for a number of
packages, where removing additional arguments when -v is present on the
command line can break ABI detection (notably in CMake packages).

Instead, filter out any references to BUILDLINK_DIR from the libtool
scripts, as that should do the same job.

Retain the ability to run the 'scan' wrapper script, as it can be useful
in certain cases, and is required to support the scan-libtool script
anyway.
The TCL library links with libz, so pull in the dependency.
Bump PKGREVISION for pulling in zlib dependency, because builds on systems
with PREFER_PKGSRC=yes may have successfully built and installed previously,
but are quite likely broken.