Use autoconf to create Makefile

[lattera]

I ported the Makefile by hand to use BSD Makefile syntax so that I could add it to the HardenedBSD ports tree. Ideally, the Makefile shouldn't have to be hand-edited. As much as I dislike autoconf, it might be of use here. In the BSDs (or at least in FreeBSD and HardenedBSD), jo needs to link with the math library (-lm). I'm going to guess you're using a Linux distro that probably doesn't need that. Using autoconf would allow you to detect whether you need to link with any libraries and it would auto-generate the Makefile based on a template (the Makefile.am file). I'd supply a patch with this issue myself, but my time is very limited.

To take a look at what's different between my Makefile and yours, take a look at: master...lattera:master (ignore the obj directory I created)

[jpmens]

Incidentally I started studying autoconf a few hours ago; I don't yet feel comfortable enough to push my changes, but I'll do so in the course of tomorrow probably, after a good night's rest. ($TZ==CET here :-)

[jpmens]

BTW, I built jo on FreeBSD 10.2 this morning with my Makefile (i.e. without needing -lm)

[lattera]

Cool! I've done a little bit of autoconf work, but it's been over a year, so I'd be a little on the rusty side. I reorganized ClamAV's autoconf scripts to be a bit more sane, you might wanna take a look at that (link below). ClamAV's autoconf scripts are way overkill for such a simple app like jo, but it might give you a good place to start from.

It looks like -lm is needed on 11.0-CURRENT. Jo wouldn't build without it.

https://github.com/vrtadmin/clamav-devel/blob/master/configure.ac

[jpmens]

I've pushed an experimental branch autot with autotools support. Could you verify that it does for you, what it ought to do? I've tested this a bit on several platforms and "it works on my machines(™)" ;-)

As soon as you give the OK, I'll merge to master and make a release.

[jpmens]

I've merged to master.

[jpmens]

So, I hope this is the last time I bother you :) I've released version 0.4.