#17 Should be happy on a pts given the FRAMEBUFFER variable

[Samuel Thibault]

Hello,

There is the FRAMEBUFFER variable that permits to override which
framebuffer w3mimg should use, but it's not working if not running
directly from the Linux VT. The mere presence of the FRAMEBUFFER
variable should however force w3mimg into trying to use that given fb
device. The attached patch is a crude way to do it (hard-codes
FRAMEBUFFER while it's a nice macro in fb.c, which should actually be
exported, etc., I let you choose how you prefer to fix it exactly).

Samuel

[Samuel Thibault]