libvorbis doesn't link with envelope.c 1.34 change
I did a cvs pull Sunday afternoon CST March 4, 2001.
envelope.c 1.34 did an include of iir.c, and it's also in the project itself.
CW 5.3 complains of duplicate descriptors (i.e. duplicate functions). My
workaround is to remove iir.c from the project.
The bigger issue is how to get inlining and other performance enhancements