Wait for children from chain_open()

From-SVN: r26972

gcc/ChangeLog

+Mon May 17 19:45:41 1999  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
+
+	* fixinc/fixincl.c (process): Wait for children from chain_open()
+	to avoid creating zombies.
+
+	* fixinc/inclhack.tpl: Removed no-op pipe.
+
 Mon May 17 07:23:34 1999  Mark Mitchell  <mark@codesourcery.com>
 
 	* tree.def (TYPE_NONCOPIED_PARTS): Revise documentation to match

gcc/fixinc/fixincl.c

@@ -938,6 +938,7 @@ process (pz_data, pz_file_name)
   tFixDesc *p_fixd = fixDescList;
   int todo_ct = FIX_COUNT;
   t_fd_pair fdp = { -1, -1 };
+  int num_children = 0;
 
   /*  IF this is the first time through,
       THEN put the 'file' environment variable into the environment.
@@ -1086,6 +1087,7 @@ process (pz_data, pz_file_name)
           if (fd != -1)
             {
               fdp.read_fd = fd;
+              num_children++;
               break;
             }
 
@@ -1172,4 +1174,9 @@ process (pz_data, pz_file_name)
     fclose (in_fp);
   }
   close (fdp.read_fd);  /* probably redundant, but I'm paranoid */
+
+  /* Wait for child processes created by chain_open()
+     to avoid creating zombies.  */
+  while (--num_children >= 0)
+    wait ((int *) NULL);
 }

gcc/fixinc/inclhack.tpl

@@ -405,7 +405,7 @@ echo 'Removing unneeded directories:'
 cd $LIB
 all_dirs=`find . -type d -print | sort -r`
 for file in $all_dirs; do
-  rmdir $LIB/$file > /dev/null 2>&1 | :
+  rmdir $LIB/$file > /dev/null 2>&1
 done
 
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