Trying to build tightvnc 1.3.10 on Mac OS X 10.4.11 Intel fails with:
gcc -o Xvnc -O2 -ansi -Dasm=__asm -L../.././/exports/lib dix/libdix.a os/libos.a ../.././/lib/Xau/libXau.a ../.././/lib/Xdmcp/libXdmcp.a ../.././/exports/lib/libfont.a hw/vnc/libvnc.a ../.././/../libvncauth/libvncauth.a cfb/libcfb.a cfb16/libcfb.a cfb24/libcfb.a cfb32/libcfb.a mfb/libmfb.a dix/libxpstubs.a mi/libmi.a Xext/libext.a -lz -lm -L/mp/lib -ljpeg -lz
/usr/libexec/gcc/i686-apple-darwin8/4.0.1/ld: Undefined symbols:
_ffsl
tightvnc 1.3.9 could be built with no problem.