--- OpenCASCADE6.3.0/ros/src/WOKUnix/WOKUnix_FDescr.cxx.orig 2010-02-10 19:12:46.817020169 -0200 +++ OpenCASCADE6.3.0/ros/src/WOKUnix/WOKUnix_FDescr.cxx 2010-02-10 19:13:34.293017409 -0200 @@ -202,7 +202,7 @@ if(mknod(apath.ToCString(), 0700 | S_IFIFO, 0)) { perror(apath.ToCString());} - myFileChannel = open(apath.ToCString(), O_RDONLY | O_NDELAY | O_CREAT); + myFileChannel = open(apath.ToCString(), O_RDONLY | O_NDELAY | O_CREAT, 0666); SetUnBuffered(); // write end of pipe is unbuffered also