The serial-tests directive was added in automake v0.11. Add an ad-hoc
version check to find out if it's safe to enable. Fixes the autotools
build with older versions of automake.
Squelches (justified) warnings with automake 1.14.
Object files are built in subdirectories now so fix up the dtrace
postprocessing step to scan for *.lo files in said subdirectories.
Fixes#866.
Switch to the build tool everyone loves to hate. The Makefile has
served us well over the years but it's been acquiring more and more
features that autotools gives us for free, like easy static+shared
library building, sane install targets, and so on.
This commit drops MinGW support. If there is demand for it, we'll
re-add it.
