bootstrap/4068: [linux-x86] bootstrapping on libc5 systems

[Joseph S. Myers]

The following reply was made to PR bootstrap/4068; it has been noted by GNATS.

From: "Joseph S. Myers" <jsm28@cam.ac.uk>
To: <bangerth@dealii.org>,  <gcc-bugs@gcc.gnu.org>,  <mengel@fnal.gov>, 
     <nobody@gcc.gnu.org>,  <gcc-gnats@gcc.gnu.org>
Cc:  
Subject: Re: bootstrap/4068: [linux-x86] bootstrapping on libc5 systems
Date: Tue, 19 Nov 2002 23:49:07 +0000 (GMT)

 On 19 Nov 2002 bangerth@dealii.org wrote:
 
 > Old Synopsis: bootstrap fails on older Linux (Red Hat 5.2)
 > New Synopsis: [linux-x86] bootstrapping on libc5 systems
 
 The problem systems are specifically glibc 2.0, not libc5.  For it
 possibly to work the patch implied by the discussion I referenced is
 needed - i.e.
 
 --- gcc/config/i386/linux.h.orig	Fri Nov 15 14:57:12 2002
 +++ gcc/config/i386/linux.h	Tue Nov 19 23:47:16 2002
 @@ -228,7 +228,7 @@
     signal-turned-exceptions for them.  There's also no configure-run for
     the target, so we can't check on (e.g.) HAVE_SYS_UCONTEXT_H.  Using the
     target libc1 macro should be enough.  */
 -#ifndef USE_GNULIBC_1
 +#if !(defined (USE_GNULIBC_1) || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 0))
  #include <signal.h>
  #include <sys/ucontext.h>
  
 
 -- 
 Joseph S. Myers
 jsm28@cam.ac.uk