[BRLTTY] Honor distribution LDFLAGS when building drivers

[Jaroslav Skarvada]

----- Original Message -----
> 
> 
> ----- Original Message -----
> > [quoted lines by Jaroslav Skarvada on 2018/05/22 at 11:42 -0400]
> > 
> > >> Are you the person who maintains brltty for Fedora?
> > >> 
> > >I am co-maintainer in Fedora, maintainer in RHEL
> > 
> > Looking at Fedora 28, the systemd service unit for brltty specifies:
> > 
> >    WantedBy=multi-user.target
> > 
> > I wonder if you guys might consider changing this as braille isn't only
> > desirable when the system is running normally. A blind user would really
> > like
> > his/her braille device to be operational as soon as possible, e.g. so that
> > he/she can perform maintenance or when there's a system boot problem. It'd
> > actually be useful as a dracut module for when the boot goes into the
> > initramfs
> > emergency shell (as has recently happened to me).
> > 
> 
> This is good point, I will take a look and I will try to improve it,
> 
> thanks & regards
> 
> Jaroslav

In rawhide I changed systemd service WantedBy to:
WantedBy=default.target emergency.target

Regarding dracut module it seems to be a bit more tricky, but we will
try to implement one. I am ready to receive patches / PR if anybody
wants to contribute here :)

thanks & regards

Jaroslav