Re: [patch] support for multiarch systems

[Thomas Schwinge]

Hi!

On Sun, 21 Aug 2011 02:14:10 +0200, Matthias Klose <d...@ubuntu.com> wrote:
Non-text part: multipart/mixed
> On 08/20/2011 09:51 PM, Matthias Klose wrote:
> > Multiarch [1] is the term being used to refer to the capability of a system 
> > to
> > install and run applications of multiple different binary targets on the 
> > same
> > system.  The idea and name of multiarch dates back to 2004/2005 [2] (to be
> > confused with multiarch in glibc).
> 
> attached is an updated patch which includes feedback from Jakub and Joseph.

I can confirm that this restores out-of-the box GCC bootstrap on Debian
GNU/Linux testing 386 and Debian GNU/Hurd unstable i386.  Thanks!

A hint for the kids trying this patch at home: don't forget to regenerate
gcc/configure...  (Saves you some hours...)  ;-)


Matthias, please put the following patch on top, though.  (For preserving
the order of using i386/t-linux (which should be renamed i386/t-gnu-user,
but that's for another day) and i386/t-{gnu,kfreebsd}.

        * gcc/config.gcc <i[34567]86-*-kfreebsd*-gnu, x86_64-*-kfreebsd*-gnu>
        <i[34567]86-*-gnu*>: Take care to put their configuration files after
        the i386/t-linux one.
 
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 784ddd7..7d0214f 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -1317,14 +1317,12 @@ i[34567]86-*-linux* | i[34567]86-*-kfreebsd*-gnu | 
i[34567]86-*-knetbsd*-gnu | i
                ;;
        i[34567]86-*-kfreebsd*-gnu)
                tm_file="${tm_file} i386/gnu-user.h kfreebsd-gnu.h 
i386/kfreebsd-gnu.h"
-               tmake_file="${tmake_file} i386/t-kfreebsd"
                ;;
        i[34567]86-*-kopensolaris*-gnu)
                tm_file="${tm_file} i386/gnu-user.h kopensolaris-gnu.h 
i386/kopensolaris-gnu.h"
                ;;
        i[34567]86-*-gnu*)
                tm_file="$tm_file i386/gnu-user.h gnu.h i386/gnu.h"
-               tmake_file="${tmake_file} i386/t-gnu"
                ;;
        esac
        tmake_file="${tmake_file} i386/t-crtstuff"
@@ -3587,11 +3585,15 @@ case ${target} in
 
        i[34567]86-*-darwin* | x86_64-*-darwin*)
                ;;
-       i[34567]86-*-linux* | x86_64-*-linux* | \
-         i[34567]86-*-kfreebsd*-gnu | x86_64-*-kfreebsd*-gnu | \
-         i[34567]86-*-gnu*)
+       i[34567]86-*-linux* | x86_64-*-linux*)
                tmake_file="${tmake_file} i386/t-linux"
                ;;
+       i[34567]86-*-kfreebsd*-gnu | x86_64-*-kfreebsd*-gnu)
+               tmake_file="${tmake_file} i386/t-linux i386/t-kfreebsd"
+               ;;
+       i[34567]86-*-gnu*)
+               tmake_file="${tmake_file} i386/t-linux i386/t-gnu"
+               ;;
        i[34567]86-*-solaris2* | x86_64-*-solaris2.1[0-9]*)
                ;;
        i[34567]86-*-cygwin* | i[34567]86-*-mingw* | x86_64-*-mingw*)


Grüße,
 Thomas

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