[qmc2-devel] New support for libarchive

[R. R. <ren...@ba...>]

Hi list!

I've just recently added *optional* support for libarchive to QMC2. It's not 
complete yet, that is, QMC2 Arcade has no support for it yet and it's 
currently also not used by the ROMAlyzer / check-sum scanner / collection 
rebuilder. But all image archives can now also be loaded through libarchive.

I will complete the support by QMC2 Arcade before release, the rest may come 
later (it's of limited use by the ROMAlyzer anyway because libarchive has no 
concept of a "header check-sum" even on formats that keep this information).

I've already changed my openSUSE package to include support for it because all 
targeted versions provide libarchive >= 3.0 (which is required at least). 

To enable it, add "LIBARCHIVE=1" on the make command line.

Have fun, René