Getting Flash support on Sarge

[Nathan Thrower <revolution9@gmail.com>]

I want to get a Flash plugin to run under Sarge.  I downloaded the
source for GPLFlash 0.4.13, but upon running ./configure I'm eventually
met with the error "configure: error: *** GPLFlash requires
libjpeg."  I Googled for libjpeg, but all I found was jpeg-6b --
which was a few years old.  Regardless, I downloaded the source
and compiled it, but I still get the same error when trying to
./configure GPLFlash.  I'm running Debian Sarge with the stock
kernel on an Apple PowerBook G3 500 MHz 'Pismo'.