portable: check for libcrypto unconditionally Don't exclude OpenBSD from checking for libcrypto; gotd still needs this.

portable: add check for libcrypto This is needed for gotd's got-notify-http libexec helper.

portable: fix compilation on OpenBSD Make -portable work on OpenBSD; explicitly use -ltls, and dont't use PKG_CONFIG to check for a library which won't exist on OpenBSD.

portable: enable SHA256 This allows the use of native SHA256 functions. From naddy@

portable: disable SHA384/SHA512 This isn't used in got, so may as well disable from compat. From naddy@

portable: compile gotd unconditionally For some time now, gotd was only ever available if one used the --enable-gotd flag to configure. This was fine back when gotd was still under development -- but it's now very usable, and deserves to be enabled by default.

portable: update help syntax Fix syntax for --enable-{gotd,cvg}

portable: enable got-fetch-http

portable: gotd: enable got-notify-http

portable: enable got-notify-email Now that gotd has the start of helpers, got-notify-email is the first. This is still behind the --enable-gotd flag.

portable: update dist configuration When running 'make dist', ensure we automatically pass through the relevant configure options so that the relevant files are included.

portable: add --enable-cvg flag Just while cvg is being developed, mask the building of this via a flag to ./configure -- this is not intended to be used by any packagers, but rather, provide a means for developers for testing. This flag will go away once cvg is considered releasable.

portable: configure: echo gotd/gitwrapper paths When --enable-gotd is present, and gotd empty path or gitwrapper's git libexec path is set, print those out with the other information at the end of the configure script. "N/A" is set where no value is present. Helpful for debugging.

portable: make gitwrapper --enable-gotd aware There's no point installing gitwrapper outside of enabling gotd, as this is only used by gotd.

portable: configure gitwrapper/gotd paths Rather than hard-code assumptions into gitwrapper and gotd binaries, allow for some values to be overriden at compile time. This should help portability.

portable: gotd/gitwrapper: update for libs Bring gotd and gitwrapper closer to how libraries are detected.

portable: enable gotctl (via --enable-gotd) This builds gotctl, for the moment via --enable-gotd

portable: build gotsh when --enable-gotd passed When building gotd, also build gotsh.

portable: enable compiling gotd This enables gotd -- for now, this is opt-in at compile-time, via: ./configure --enable-gotd

portable: enable cvg

portable: linux: add libmd On some systems libmd isn't explicitly implied, so detect this via pkg-config at configure time. Problem reported by @stsp

portable: fix getopt check Rather than always asserting our version of getopt(2), only do so if it lacks certain features. Some of the configure.ac changes have come from openssh-portable.

portable: OpenBSD compilation fixes

portable: curses: improve detection When checking for ncurses, don't clobber previous checks for libpanel.

portable: improve b64_ntop detection When looking for base64 functions, check -lresolv and/or -lnetwork, and only build those in compat if required. Some of the detection code was modified from tmux's configure.ac script.