These changes look good. Thanks.
and now the inevitable "but"..., these are just suggestions,
but they are based on my past experiences.
1) don't leave dead code in the product unless you think it may be useful in the future.
examples: the configure script is already sort of trashy, since it is the driver for a set
of old products. The main reason the thirdparty design exists is that you can't trust the
maintainers to not break your build. PLEASE be aware that every month any mod you
make has to work on 18 platforms that cover a span of 10 years or so. Any break that
is historical can stop several builds. The build system is a xen host running an
embedded busybox system that only operates the build. No servers, no installed extras.
It operates 3 sets of build iterators. If any of them fail, more passes (4,5,...). Each pass
is risky, since it is almost always some kind of emergency patch, and usually
downgrades the results. Another example, /usr/X11R7/lib has not been around for a
while on most platforms. It also as permuted variants /usr/lib/X11 /usr/share/X11/ etc.
If the change is really needed for a particular platform, then it may need to be "specialized".
2) I am not sure, but it looks like there is a new version of OpenEXR (2.4.1). I tried it,
but it requires the a very recent version of cmake. Currently, there seems to be a struggle
to replace autotools with cmake,meson,waf ... Meson broke many builds. I rewrote the
dav1d meson build as a makefile, and tried to give it to the developers, but they declined to
carry it. Every time they tweak the build, I have to mod the makefile. Not nice. And now
the suggestion, If you are going to refactor the OpenEXR build, please see if it is possbile
to get it to work with the more recent version. It is not essential to make it work, since it
is already working with a usable version, but keeping up with 40 or so libraries is a major
task, and maintenance is continuous. Try to make sure that the work you do will be good
for as long as possible.
3) I personally wish to thank you (and all of you) who have helped to improve the result.
It has always been a curiosity that almost all of the technical help is not from any "techy"
component, (eg. google, apple, adobe, ...) but from real users that are just plain interested
in having something nice to use. It is highly appreciated for your work on a large section
of source code/libraries. Thank you.
gg
PS. The documentation rework is just outstanding.