Firebird 2.0.1 on ubuntu ppc – how to solve compilation issues

After seeing this thread http://ubuntuforums.org/showthread.php?t=413339
I downloaded the source tarbizip file

$wget http://kent.dl.sourceforge.net/sourceforge/firebird/Firebird-2.0.1.12855-0.tar.bz2
$tar -jxf Firebird-2.0.1.12855-0.tar.bz2

edited this file src/jrd/pag.cp
and at line 273 i deleted
these 3 lines

#ifdef PPC
const SSHORT CLASS = CLASS_LINUX_PPC;
#endif

That constat is defined again later
also in my case i had to

$chmod +x src/misc/writeBuildNum.sh

after that it worked with

$sh autogen.sh

and

$make