[gcc r13-6947] libiberty: Remove a reference to the Glibc manual

[gcc r13-6947] libiberty: Remove a reference to the Glibc manual

[Gerald Pfeifer]

https://gcc.gnu.org/g:83d2b1ccd17d394d546a38562815ef83daa05e85

commit r13-6947-g83d2b1ccd17d394d546a38562815ef83daa05e85
Author: Gerald Pfeifer <gerald@pfeifer.com>
Date:   Thu Mar 30 23:41:24 2023 +0200

    libiberty: Remove a reference to the Glibc manual
    
    longjmp is not specific to Glibc, and GCC supports lots of systems
    that do not use Glibc. Plus this link has been broken in the web
    version for ages without a good way to fix.
    
    libiberty/ChangeLog:
    
            * obstacks.texi (Preparing for Obstacks): Remove a (broken)
            reference to the Glibc manual.

Diff:
---
 libiberty/obstacks.texi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libiberty/obstacks.texi b/libiberty/obstacks.texi
index b2d2403210b..37d26c90f1b 100644
--- a/libiberty/obstacks.texi
+++ b/libiberty/obstacks.texi
@@ -172,8 +172,8 @@ The value of this variable is a pointer to a function that
 @code{obstack} uses when @code{obstack_chunk_alloc} fails to allocate
 memory.  The default action is to print a message and abort.
 You should supply a function that either calls @code{exit}
-(@pxref{Program Termination, , , libc, The GNU C Library Reference Manual}) or @code{longjmp} (@pxref{Non-Local
-Exits, , , libc, The GNU C Library Reference Manual}) and doesn't return.
+(@pxref{Program Termination, , , libc, The GNU C Library Reference Manual}) 
+or @code{longjmp} and doesn't return.
 
 @smallexample
 void my_obstack_alloc_failed (void)