Thanks, all. I finally got it. I was missing the -export-dynamic and -shared flags. The line that worked was gcc -export-dynamic -shared -Lwave++mod/source/ -L/usr/lib/gcc/i386-redhat-linux/4.0.1/ -L/usr/lib/ -o wpp~.pd_linux wpp~.o -lm -lc -lw -lstdc++ much appreciated!! -- Charles Zachary Henry anti.dazed.med Med student who needs a Mickey's