Add casts to suppress warnings in system.c under [!_LIBC_REENTRANT].

diff --git a/ChangeLog b/ChangeLog
index d6ef5e9..8e0a080 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-08-15  Roland McGrath  <roland@hack.frob.com>
+
+       * sysdeps/posix/system.c (do_system): Cast SUB_REF () to void when not
+       using its value, to avoid warnings in the [!_LIBC_REENTRANT] case.
+
 2012-08-14  Mike Frysinger  <vapier@gentoo.org>
 
        * config.h.in (HAVE_CPP_ASM_DEBUGINFO): Delete.

diff --git a/sysdeps/posix/system.c b/sysdeps/posix/system.c
index c4d65bf..5973b62 100644 (file)
--- a/sysdeps/posix/system.c
+++ b/sysdeps/posix/system.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2000,2002,2003,2005,2007 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -70,13 +70,13 @@ do_system (const char *line)
     {
       if (__sigaction (SIGINT, &sa, &intr) < 0)
        {
-         SUB_REF ();
+         (void) SUB_REF ();
          goto out;
        }
       if (__sigaction (SIGQUIT, &sa, &quit) < 0)
        {
          save = errno;
-         SUB_REF ();
+         (void) SUB_REF ();
          goto out_restore_sigint;
        }
     }