cleanup: Remove ports depending on expired lang/gcc6-aux

Keep ports-mgmt/synth and dependencies (including lang/gcc6-aux itself)
for now as synth is the only Ada port still maintained and might be
somewhat high-profile.

Removed ports:
archivers/zip-ada
cad/ghdl
databases/adabase
databases/apq
databases/apq-mysql
databases/apq-odbc
databases/apq-pgsql
devel/ada-util

Remove # $FreeBSD$ from Makefiles.

Drop optional dependency on python 2.7

Update Sphinx

- Repocopy textproc/py-sphinx to textproc/py-sphinx18

  Update it to 1.8.5 (latest version from 1.8.X).
  This version supports Python 2 and 3.
  Add test target.

- textproc/py-sphinx: Update to 3.0.2

  Python 3 only (3.5+).
  Add test target.

- Mk/Uses/python.mk: Add PY_SPHINX

Assign back to the pool

Bump PORTREVISIONs of all users of math/mpc that we just updated to
version 1.1.0 (via revision 464079).

- Fix build with python3

Approved by:	portmgr blanket

- Update textproc/py-sphinx to 1.6.5. [0]
- Update all ports that depends of py-sphinx. [0]
- Add conditional RUN_DEPENDS. [1]
- Add TEST_DEPENDS. [1]

PR:		ports/221891 [0] and ports/225136 [1]
Submitted by:	sunpoet [1]
Approved by:	antoine (portmgr)
Exprun by:	antoine (several rounds)
Sponsored by:	iXsystems, Inc.

Convert Python ports to FLAVORS.

  Ports using USE_PYTHON=distutils are now flavored.  They will
  automatically get flavors (py27, py34, py35, py36) depending on what
  versions they support.

  There is also a USE_PYTHON=flavors for ports that do not use distutils
  but need FLAVORS to be set.  A USE_PYTHON=noflavors can be set if
  using distutils but flavors are not wanted.

  A new USE_PYTHON=optsuffix that will add PYTHON_PKGNAMESUFFIX has been
  added to cope with Python ports that did not have the Python
  PKGNAMEPREFIX but are flavored.

  USES=python now also exports a PY_FLAVOR variable that contains the

Return ports maintained by John Marino to the pool, he is no longer interested.

Submitted by:	Mark Millard via private e-mail

Return the ports mistakenly reset to ports@ in r433856 to John Marino.

The mistake was completely on my part, I somehow connected the dots the
wrong way in my head.

The only exceptions (for now) are archivers/zstd and ports-mgmt/synth
which were already picked up by new volunteers in the mean time.

Return ports maintained by John Marino to the pool, see r433827 for details

Change Ada Framework foundation from gcc5-aux to gcc6-aux

GCC 6.1 was released this week.  The Ada Framework in FreeBSD ports has
been based on GCC 5.3 GNAT although GCC 6.x has been supported for awhile
via the ADA_DEFAULT option in make.conf.

Now that GCC 6 has been officially released, switch to it by default.
People can maintain the old foundation by putting "ADA_DEFAULT=5" in
/etc/make.conf.

Libraries built by one GNAT are unusable by another, so almost every Ada
port has been bumped as a result.  Noticable exceptions are dns/ironsides
which fails to build on gcc6 (thus USES=ada:5 is set) and cad/ghdl which
needs additional testing as it may require gcc5 on FreeBSD (DragonFly
uses the LLVM backend only).

Remove ${PORTSDIR}/ from dependencies, categories d, e, f, and g.

With hat:	portmgr
Sponsored by:	Absolight

- Fix plist
- Fix WWW:

Approved by:	portmgr blanket

devel/ahven: Upgrade version 2.4 => 2.6

I could not use the comfignat build system.  For starters it creates
a dynamic library which, when used, has troubling finding libgnarl.
If I make changes to force it to build statically, the programms that
link to it fail with a STORAGE ERROR.

Finally I just put all the build and install steps in the port makefile
and everything is working as it did with version 2.4

- Add missing docfiles into plist
- Use options helpers
- Fix installation with DOCS disabled (do not try to install docs which were not
built)

PR:		202795
Submitted by:	amdmi3
Approved by:	marino (maintainer)

MASTER_SITES cleanup.

- Replace ${MASTER_SITE_FOO} with FOO.
- Merge MASTER_SITE_SUBDIR into MASTER_SITES when possible. (This means 99.9%
  of the time.)
- Remove occurrences of MASTER_SITE_LOCAL when no subdirectory was present and
  no hint of what it should be was present.
- Fix some logic.
- And generally, make things more simple and easy to understand.

While there, add magic values to the FESTIVAL, GENTOO, GIMP, GNUPG, QT and
SAMBA macros.

Also, replace some EXTRACT_SUFX occurences with USES=tar:*.

Checked by:	make fetch-urlall-list
With hat:	portmgr
Sponsored by:	Absolight

marino 12 devel ports: Remove @dirrm, tend install commands, plus

The main purpose of this commit is to remove @dirrm from the pkg-plist of
some of my ports in devel category.  While here, also:
  * Unmask some commands
  * Use parenthesis on compound commands for multi-job support
  * Add a license in one case
  * USES=python conversion in one case
  * Add WWW and reformat description in one case
  * Respect 80-columns

devel/ahven: Improve symbolic traceback functionality

Rather than show the lengthy and not helpful trace of the Ahven
Framework when a symbolic trace is shown, detect the start of this
infrastructure trace and truncate it there.  This helps debugging
greatly by removing a lot of noise.

devel/ahven: Disable style checks to prepare for gcc49

Avhen enables numerous style checks for the production build, but
unfortunately the "then placement" check fails on Ahven too.  There
are at least two source files that need changing, so let's just
remove the checks completely.  They are developer switches IMO.

devel/ahven: Modify to add symbolic tracing.

The author, Tero Koskine, intends for ahven to be compiler agnostic,
and therefore can't use GNAT-specific functionality like
GNAT.Traceback.Symbolic.  However, there is only one brand of Ada
compiler in ports, GNAT, so we can take advantage of it.

This change adds a default option to alter the exception handling to
trace through the symbols to display files and line numbers of each
frame on the stack.  Declining the option builds Ahven without the
modification and allows Ahven to be used on non-GNAT compilers (assuming
you can find one on FreeBSD.)

devel/ahven: Two more fixes

Fix 1: It was building windows compat by default, switch to "unix"
Fix 2: BSD_INSTALL_LIB was stripping all symbols out of static libary,
       switch to BSD_INSTALL_DATA to avoid that.

devel/ahven: Don't try to strip ali files, use BSD_INSTALL_DATA instead

devel/ahven: Add ISC license

No bump, 10 minute rule. :)

devel/avhen: Update from version 2.3 to 2.4

devel/ahven: Convert to staging

Add NO_STAGE all over the place in preparation for the staging support (cat:
devel part 1)

Add new port: devel/ahven

Avhen is a testing framework for the Ada programming language.  It has
functional similarities to JUnit and AUnit.

Approved by:	bapt (mentor)