Ok, I think I didn't make myself clear. I thought my trouble was somehow related to cygipc, but obviously it is not. I *do not* want to use cygipc. I *do* want to use the new IPC routines in libcygwin.a.
I startup cygserver (usually as a service, also tried it by hand) with log level 7 and debug enabled in cygserver.conf. Otherwise, cygserver.conf is unchanged. I get the usual startup messages, finishing with "waiting for requests". I compile an arbitrary program containing semget (ipc.h includes cygwin/ipc.h, I checked that). I execute it, it dies saying "bad system call". In the logs of cygserver, I get absolutely nothing. Same thing on XP (using that now) and Windows98. filemon says that no other files than cygwin1.dll are opened while my program is running. I feel completely lost here and have no idea what I could check to find an error. Frank
cygcheck.log
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