Log message:
Bump destdir patch to build on OpenBSD. No functional change elsewhere.

Log message:
Avoid the -O (to stdout) tar option, as it's not sufficiently portable.
While here, append the specific patch file (not just the distribution)
to the qmail-spp QMAILPATCHES entry.

Log message:
Just set CFLAGS.Darwin in Makefile.

Log message:
Explicitly buildlink-depend on openssl<1.1. Fixes build on
NetBSD-current (by adding dependency on security/openssl to get a
sufficiently old version). NFCI elsewhere.

Log message:
Take responsibility from qmail-run for creating and removing the basic
config files and aliases. Bump PKGREVISION.

Log message:
Fix obvious bug in is_queue_fs_case_sensitive().

Log message:
Entab previous.

Log message:
Build and install config-fast-pkgsrc, which is like config-fast but
installs the generated files elsewhere, so we can simulate
CONF_FILES-like behavior. qmail-run will switch to config-fast-pkgsrc.
We'll take advantage to deinstall these config files (as well as the
three basic .qmail files in ~alias) provided they haven't been changed.

Both of these commands stop leaving leftovers in ${PKG_SYSCONFDIR}:

# pkg_add qmail && pkg_delete qmail
# pkg_add qmail-run && pkg_delete -r qmail

While here, warn if the queue directory is on a case-insensitive
filesystem. Probably not gonna work perfectly.

Bump PKGREVISION.

Log message:
Move patches long since non-optional out of options.mk.

Log message:
Make PATCH_DIST_CAT.${SPP_PATCH} more portable. Fixes at least NetBSD.