This may or may not make the OSX build work on a newer version of OSX
than the one that's currently being used for release builds. I have not
been able to find good docs about how exactly to get back from such a
value to the actual path to the library that the linker would use.
nukeFile replaced with removeWhenExistsWith removeLink, which allows
using RawFilePath. Utility.Directory cannot use RawFilePath since setup
does not depend on posix.
This commit was sponsored by Graham Spencer on Patreon.
Had to split out some modules because getWorkingDirectory needs unix,
which is not a build-dep of configure.
This commit was sponsored by Brock Spratlen on Patreon.
hardlinks happened to work because it was a hard link to a symlink, but
it would have failed if eg git-annex-shell symlink did not exist,
perhaps because the Makefile was not run to build it. Or something like
that. Also, it seems like it worked by accident and the Makefile used to
ln -s.
This includes making Build.Standalone run LinuxMkLibs or OSXMkLibs
rather than doing that separately. Which is groundwork for a later
optimisation.
Also it simplified the code some.
Reduce the number of directories listed in libdirs, which makes the linker
check a lot less dead ends looking for directories.
Eliminated some directories that didn't really contain shared libraries,
or only contained the linker.
That left only 2, one in lib and one in usr/lib, so consolidate those two.
Doing it this way, rather than just consolidating all libs that might exist
into a single directory means that, if there are optimised versions of some
libs, eg in lib/subarch/foo.so, and lib/subarch2/foo.so, they don't get
moved around in a way that would make the linker pick the wrong one.
So that binaries in that directory can find the library next to them,
where they get modified to look.
This is a hack; it would be better for OSXMkLibs to build a list of what
libraries are needed where.
Unsure if this is needed due to a recent reversion, or is an older
problem, so updated changelog accordingly.
