On Mac OS X 10.2.8 (gcc version 3.3)
--- gcc -c -O -Wall -DPOLL_EMULATION -DNEED_SOCKLEN_T -DHAVE_VFORK core.c -o core.o core.c: In function `run_rconnection': core.c:707: error: `POLLERR' undeclared (first use in this function) core.c:707: error: (Each undeclared identifier is reported only once core.c:707: error: for each function it appears in.) core.c: In function `run_wconnection': core.c:730: error: `POLLERR' undeclared (first use in this function) ---
