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From: "Peter.Schauer" <Peter.Schauer@regent.e-technik.tu-muenchen.de>
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Subject: Re: GDB cvs won't build on AIX 4.1
To: aoliva@redhat.com (Alexandre Oliva)
Date: Fri, 01 Mar 2002 15:51:00 -0000
Cc: ezannoni@redhat.com, kevinb@redhat.com, ac131313@cygnus.com,
        gdb@sources.redhat.com
In-Reply-To: <orsn7rc9mh.fsf@free.redhat.lsd.ic.unicamp.br>; from "Alexandre Oliva" at Feb 24, 102 2:10 pm
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X-SW-Source: 2002-03/txt/msg00003.txt.bz2

I am no autoconf expert, but it looks ok to me.
It would be nice, if it could make it into the upcoming GDB release.

> --=-=-=
> 
> On Feb  4, 2002, "Peter.Schauer" <Peter.Schauer@Regent.E-Technik.TU-Muenchen.DE> wrote:
> 
> > -mminimal-toc is only available with gcc, so we might loose again, if someone
> > tries to build GDB with the native compiler.
> 
> Besides, I'm not convinced the performance loss of -mminimal-toc would
> be smaller than that of -bbigtoc, so I went with the latter for now.
> Tested on AIX 4.1.  Ok to install?
> 
> 
> --=-=-=
> Content-Type: text/x-patch
> Content-Disposition: inline; filename=gdb-aix-bigtoc.patch
> 
> Index: gdb/ChangeLog
> from  Alexandre Oliva  <aoliva@redhat.com>
> 
> 	* configure.in (gdb_cv_bigtoc): Check for -bbigtoc on AIX.
> 	* configure: Rebuilt.
> 
> Index: gdb/configure.in
> ===================================================================
> RCS file: /cvs/src/src/gdb/configure.in,v
> retrieving revision 1.82
> diff -u -p -r1.82 configure.in
> --- gdb/configure.in 2002/02/24 04:31:13 1.82
> +++ gdb/configure.in 2002/02/24 13:05:16
> @@ -511,6 +511,23 @@ AC_MSG_RESULT($gdb_cv_scanf_has_long_dou
>  
>  AC_FUNC_MMAP
>  
> +case ${host_os} in
> +aix*)
> +  AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
> +    SAVE_LDFLAGS=$LDFLAGS
> +
> +    case $GCC in
> +    yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
> +    *) gdb_cv_bigtoc=-bbigtoc ;;
> +    esac
> +
> +    LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
> +    AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
> +  ])
> +  CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
> +  ;;
> +esac
> +
>  dnl See if thread_db library is around for Solaris thread debugging.  Note that
>  dnl we must explicitly test for version 1 of the library because version 0
>  dnl (present on Solaris 2.4 or earlier) doesn't have the same API.
> 
> --=-=-=
> 
> 
> -- 
> Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
> Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
> CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
> Free Software Evangelist                Professional serial bug killer
> 
> --=-=-=--
> 
> 


-- 
Peter Schauer			pes@regent.e-technik.tu-muenchen.de