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(main, scan_prog_file): Don't call signal on signal names that aren't 

defined.

From-SVN: r4135
This commit is contained in:
Richard Kenner 1993-04-13 17:07:04 -04:00
parent ccf5d2447a
commit 8ab861c702
1 changed files with 12 additions and 0 deletions
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12
gcc/collect2.c
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@ -757,18 +757,26 @@ main (argc, argv)
if (argc < 2)
fatal ("no arguments");
#ifdef SIGQUIT
if (signal (SIGQUIT, SIG_IGN) != SIG_IGN)
signal (SIGQUIT, handler);
#endif
if (signal (SIGINT, SIG_IGN) != SIG_IGN)
signal (SIGINT, handler);
#ifdef SIGALRM
if (signal (SIGALRM, SIG_IGN) != SIG_IGN)
signal (SIGALRM, handler);
#endif
#ifdef SIGHUP
if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
signal (SIGHUP, handler);
#endif
if (signal (SIGSEGV, SIG_IGN) != SIG_IGN)
signal (SIGSEGV, handler);
#ifdef SIGBUS
if (signal (SIGBUS, SIG_IGN) != SIG_IGN)
signal (SIGBUS, handler);
#endif
/* Extract COMPILER_PATH and PATH into our prefix list. */
prefix_from_env ("COMPILER_PATH", &cpath);
@ -1361,7 +1369,9 @@ scan_prog_file (prog_name, which_pass)
/* Parent context from here on. */
int_handler = (void (*) ())signal (SIGINT, SIG_IGN);
#ifdef SIGQUIT
quit_handler = (void (*) ())signal (SIGQUIT, SIG_IGN);
#endif
if (close (pipe_fd[1]) < 0)
fatal_perror ("close (%d)", pipe_fd[1]);
@ -1419,7 +1429,9 @@ scan_prog_file (prog_name, which_pass)
do_wait (nm_file_name);
signal (SIGINT, int_handler);
#ifdef SIGQUIT
signal (SIGQUIT, quit_handler);
#endif
}
#endif /* OBJECT_FORMAT_NONE */