Hi, I looked into this. The relevant bits appear in output.c:
--8<---------------cut here---------------start------------->8--- /* Obtain the lock for writing output. */ static void * acquire_semaphore (void) { static struct flock fl; fl.l_type = F_WRLCK; fl.l_whence = SEEK_SET; fl.l_start = 0; fl.l_len = 1; if (fcntl (sync_handle, F_SETLKW, &fl) != -1) return &fl; perror ("fcntl()"); return NULL; } --8<---------------cut here---------------end--------------->8--- So this does look like make explicitly will wait for the lock to be released (F_SETLKW instead of F_SETLK). The open question is whether the current behaviour is undesireable, and what the ramifications might be of not waiting for a lock. manoj -- "I believe that Ronald Reagan will someday make this country what it once was... an arctic wilderness."-- Steve Martin Manoj Srivastava <sriva...@acm.org> 4096R/C5779A1C E37E 5EC5 2A01 DA25 AD20 05B6 CF48 9438 C577 9A1C
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