Converted to Makefile.autotools.in format
Version bumped to 1.1.24
Enabled crypto support dependant on gcrypt being chosen/not
Post process xslt-config file like freetype-config/xm2-config.
There's not much point in using depends instead of select for pkgconfig as
it's a host tool, E.G. it doesn't add anything to the rootfs.
At the same time, strip Config.in of trailing spaces.
