Log message:
security/uacme: Fix cross-build and ctype(3) abuse.

1. TOOL_DEPENDS, not BUILD_DEPENDS, for asciidoc -- we run this at
   build-time, we don't link against it.

2. Use AC_CACHE_CHECK around AC_RUN_IFELSE to allow overriding
   run-time tests at build-time with pre-determined outputs.  On
   NetBSD, mmap(MAP_ANON|MAP_SHARED) works (for that matter, I have
   no idea on what broken systems this fails).

3. Patch away ctype(3) abuse while here.

Log message:
Attempting to fix the SunOS build -- more defines may be necessary,
though, and I don't have a Solarish machine at hand.

Log message:
*: recursive bump for icu 76 shlib major version bump

Log message:
*: revbump for icu downgrade

Log message:
*: recursive bump for icu 76.1 shlib bump

Log message:
uacme: Needs -lsocket on SunOS

Log message:
revbump after icu and protobuf updates

Log message:
*: recursive bump for gnutls p11-kit option

(existing installations need the bl3.mk included, but it's now only
optionally included)

Log message:
Add security/uacme package.

Lightweight client for the RFC8555 ACMEv2 protocol, written in plain C
with minimal dependencies (libcurl and one of GnuTLS, OpenSSL or mbedTLS).

The ACMEv2 protocol allows a Certificate Authority (Let's Encrypt is a
popular one) and an applicant to automate the process of verification
and certificate issuance.  The protocol also provides facilities for
other certificate management functions, such as certificate revocation.