(execute): Don't wait for just any N subprocesses...

(execute): Don't wait for just any N subprocesses, since we may have
started with some subprocesses before we started executing.  Wait just
for _our_ N subprocesses.

From-SVN: r8746

diff --git a/gcc/gcc.c b/gcc/gcc.c
index 84ae4efa32be983d396ffdb810bf4bd547fcdc1f..d894e3b6bfb743e609db3a99b7e4e3c284d0c800 100644 (file)
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -1,5 +1,5 @@
 /* Compiler driver program that can handle many languages.
-   Copyright (C) 1987, 1989, 1992, 1993, 1994 Free Software Foundation, Inc.
+   Copyright (C) 1987, 89, 92, 93, 94, 1995 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -2276,16 +2276,18 @@ execute ()
 
   /* Wait for all the subprocesses to finish.
      We don't care what order they finish in;
-     we know that N_COMMANDS waits will get them all.  */
+     we know that N_COMMANDS waits will get them all.
+     Ignore subprocesses that we don't know about,
+     since they can be spawned by the process that exec'ed us.  */
 
   {
     int ret_code = 0;
 
-    for (i = 0; i < n_commands; i++)
+    for (i = 0; i < n_commands; )
       {
+       int j;
        int status;
        int pid;
-       char *prog = "unknown";
 
 #ifdef __MSDOS__
         status = pid = commands[i].pid;
@@ -2299,24 +2301,25 @@ execute ()
        if (pid < 0)
          abort ();
 
-       if (status != 0)
-         {
-           int j;
-           for (j = 0; j < n_commands; j++)
-             if (commands[j].pid == pid)
-               prog = commands[j].prog;
-
-           if (WIFSIGNALED (status))
-             {
-               fatal ("Internal compiler error: program %s got fatal signal %d",
-                      prog, WTERMSIG (status));
-               signal_count++;
-               ret_code = -1;
-             }
-           else if (WIFEXITED (status)
-                    && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
-             ret_code = -1;
-         }
+       for (j = 0; j < n_commands; j++)
+         if (commands[j].pid == pid)
+           {
+             i++;
+             if (status != 0)
+               {
+                 if (WIFSIGNALED (status))
+                   {
+                     fatal ("Internal compiler error: program %s got fatal signal %d",
+                            commands[j].prog, WTERMSIG (status));
+                     signal_count++;
+                     ret_code = -1;
+                   }
+                 else if (WIFEXITED (status)
+                          && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
+                   ret_code = -1;
+               }
+             break;
+           }
       }
     return ret_code;
   }