- fl_add_io_callback(infd, FL_READ, callback, (void*)this);
-
- // --- prepare output pipe ---------------------------------------
-
- tmp = pipename + ".out";
-
-#ifndef __EMX__
- if (access(tmp.c_str(), F_OK) == 0) {
-#else
- rc = DosCreateNPipe(tmp.c_str(), &fd, NP_ACCESS_DUPLEX,
- NP_NOWAIT|0x01, 0600, 0600, 0);
-
- if (rc == ERROR_PIPE_BUSY) {
-#endif
- lyxerr.print("LyXComm: Pipe " + tmp + " already exists.");
- lyxerr.print("If no other LyX program is active, please delete"
- " the pipe by hand and try again.");
- pipename = LString();
+
+ if (fcntl(outfd, F_SETFL, O_NONBLOCK) < 0) {
+ lyxerr << "LyXComm: Could not set flags on pipe " << outPipeName()
+ << '\n' << strerror(errno) << endl;