* Move httplibConfig.cmake.in to cmake dir
Just makes more sense to put it there I suppose.
* Cmake install README & License
Seems to make sense since you might already do this as a package
manager, or an end user might want them anyways.
The locations are just based on standard Linux locations using
GNUInstallDirs, so it should be sane on other machines too.
* Unimportant cleanup of FindBrotli
Some whitespace, removal of an unused var, and add a comment about
the missing version support
* Fix incorrect var in FindBrotli
Not much to say, it was just the wrong one. Not sure how that happened,
maybe a holdover from when I did an overhaul at some point..
* Tiny useless edit to FindBrotli
Just a little tweak to how I was postfixing those -static strings to the
lib names. Mostly pointless..
* Simplify some FindBrotli code
Nothing much, just reducing redundant stuff & a cleanup of a comment.
* Ignore PkgConf in FindBrotli if looking for static
As per the issue mentioned in this comment, static PkgConf support
is broken upstream. After testing, I found it'll just accept shared
even if you try to find static, so I'm merely disabling that feature
for this FindBrotli module.
That said, you can still get the static libs if you have them installed,
but PkgConf will be ignored even if found in favor of a regular
find_library call. Otherwise you'd end up with shared libs even if you
ask for static (with PkgConf installed).
TLDR: actually fail correctly when static libs aren't found when PkgConf
thought they were.
Had to create a custom FindBrotli package, as not all users have
PkgConfig installed (which Brotli uses). This file gets installed
alongside httplibConfig.cmake for the end-users convenience.
Set BROTLI_USE_STATIC_LIBS to ON if you want to find the static libs
instead of default shared.
Adds the HTTPLIB_REQUIRE_BROTLI (default off) and HTTPLIB_USE_BROTLI_IF_AVAILABLE
(default on) options, which work in the same manner as the other optional/required
dependency options.
Moved the scattered linking and definitions to a single call.
Updated some documentation about the new options.
Improved the in-tree support by setting the HTTPLIB_IS_USING_XYZ
variables in the main CMakeLists (as well as having them in the
httplibConfig.cmake file).
Fixes#582