more rigorous SIGCHLD guarding

[pf3gnuchains/gcc-fork.git] / gcc / protoize.c

diff --git a/gcc/protoize.c b/gcc/protoize.c
index 6780b00..aa03edf 100644 (file)
--- a/gcc/protoize.c
+++ b/gcc/protoize.c
@@ -25,6 +25,9 @@ Boston, MA 02111-1307, USA.  */
 
 #include <setjmp.h>
 #include <signal.h>
+#if ! defined( SIGCHLD ) && defined( SIGCLD )
+#  define SIGCHLD SIGCLD
+#endif
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
@@ -4583,6 +4586,12 @@ main (argc, argv)
 #endif
   pname = pname ? pname+1 : argv[0];
 
+#ifdef SIGCHLD
+  /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
+     receive the signal.  A different setting is inheritable */
+  signal (SIGCHLD, SIG_DFL);
+#endif
+
 /* LC_CTYPE determines the character set used by the terminal so it has be set
    to output messages correctly.  */