PostGIS 3.7.0rc2 released

[Greg Troxel]

I think I understand better now.

* details

rsvg-convert is listed as needed, but configure.ac doesn't look for it.
It does look for convert, but doesn't check that it does what you need -
I'm unclear on if a working convert always does, or if it's optional.

* big picture

Within the "make docs" top-level target there are a lot of subsidiary
docs targets.  Some of them fall into "things a package ought to have
installed", and some seem more obscure.  In packaging, what I want is a
way to ask for the things that belong in a package.  If visual examples
require things that aren't compatible  with packaging build
environments, I'm ok with having those be off.

Looking in doc/Makefile I see

  ifeq ($(CAN_BUILD_COMMENTS),yes)
  BUILD_TARGET += comments
  endif

  ifeq ($(CAN_BUILD_PDF),yes)
  BUILD_TARGET += pdf
  endif

  ifeq ($(CAN_BUILD_EPUB),yes)
  BUILD_TARGET += epub
  endif

but I see no such if for visual examples.  Perhaps that's the problem,
or perhaps there should be split targets from top-level, or make docs
removed and documented which targets should be called, for things to be
"make installed".

I admit to not paying attention to doc details; for years things have
built and the binary package has man pages.  (I don't want to depend on
latex.)