[fprint] modular libfprint

[Pavel Herrmann]

Hi

When you do not supply --with-drivers it defaults to "auto", which 
enables the autodetection algorithms (which add detected devices to the 
drivers list), and then it checks if drivers have not changed (it tests 
if it is still "auto") and if so it builds all drivers

The "all" option is added now, with the possibility to combine upper and 
lowercase names for the drivers (upekTS will work as well as UPEKts and 
UPEKTS and any other combination).

Anyway, the default behavior is set to "auto" because it will remove the 
unwanted ImageMagick dependency for most users (and there would be no 
questions "which driver should I use?").
I would personally let Daniel decide whether "auto" or "all" should be 
the default.

Pavel

PS. any more suggestions are welcome ;-)

Artem Egorkine wrote:
> Besides, if I understand configure.ac correctly, you do not have a
> "--with-drivers=all" option at all, as not supplying
> "--with-drivers=..." will default to "--with-drivers=auto" behavior.
> Am I right?
>
> -Artem
>   
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