[Bug go/55969] New: libgo fails to build on darwin

[Bug go/55969] New: libgo fails to build on darwin

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55969

             Bug #: 55969
           Summary: libgo fails to build on darwin
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: go
        AssignedTo: ian@airs.com
        ReportedBy: rguenth@gcc.gnu.org
            Target: x86_64-darwin


Created attachment 29160
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29160
preprocessed source

I get

/Users/richard/obj/./gcc/xgcc -B/Users/richard/obj/./gcc/
-B/usr/local/x86_64-apple-darwin12.2.0/bin/
-B/usr/local/x86_64-apple-darwin12.2.0/lib/ -isystem
/usr/local/x86_64-apple-darwin12.2.0/include -isystem
/usr/local/x86_64-apple-darwin12.2.0/sys-include    -DHAVE_CONFIG_H -I.
-I../../../src/trunk/libgo  -I ../../../src/trunk/libgo/runtime
-I../../../src/trunk/libgo/../libffi/include -I../libffi/include
-pthread  -fexceptions -fplan9-extensions  -Wall -Wextra -Wwrite-strings
-Wcast-qual -Werror -minline-all-stringops -D_GNU_SOURCE
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I
../../../src/trunk/libgo/../libgcc -I
../../../src/trunk/libgo/../libbacktrace -I ../../gcc/include -O2 -g -MT
go-main.o -MD -MP -MF .deps/go-main.Tpo -c -o go-main.o `test -f
'runtime/go-main.c' || echo
'../../../src/trunk/libgo/'`runtime/go-main.c -save-temps
In file included from ../../../src/trunk/libgo/runtime/runtime.h:18:0,
                 from ../../../src/trunk/libgo/runtime/go-main.c:17:
/usr/include/ucontext.h:43:2: error: #error The deprecated ucontext
routines require _XOPEN_SOURCE to be defined
 #error The deprecated ucontext routines require _XOPEN_SOURCE to be defined
  ^

[Bug go/55969] libgo fails to build on darwin

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55969

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2013-01-14 14:09:53 UTC ---
dnl See whether setcontext changes the value of TLS variables.
AC_CACHE_CHECK([whether setcontext clobbers TLS variables],

probably doesn't check what it should because of this, too.

[Bug go/55969] libgo fails to build on darwin

[howarth at nitro dot med.uc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55969

Jack Howarth <howarth at nitro dot med.uc.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |howarth at nitro dot
                   |                            |med.uc.edu

--- Comment #2 from Jack Howarth <howarth at nitro dot med.uc.edu> 2013-01-14 15:39:48 UTC ---
Shouldn't this be part of PR46986? I was unaware that any of those issues
mentioned in that PR had been addressed in gcc trunk for darwin yet.

[Bug go/55969] libgo fails to build on darwin

[ian at airs dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55969

--- Comment #3 from Ian Lance Taylor <ian at airs dot com> 2013-01-14 17:35:21 UTC ---
Gccgo doesn't work on Darwin anyhow.  I don't think the problems are hard to
fix.

[Bug go/55969] libgo fails to build on darwin

[rguenther at suse dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55969

--- Comment #4 from rguenther at suse dot de <rguenther at suse dot de> 2013-01-14 18:23:21 UTC ---
ian at airs dot com <gcc-bugzilla@gcc.gnu.org> wrote:

>
>http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55969
>
>--- Comment #3 from Ian Lance Taylor <ian at airs dot com> 2013-01-14
>17:35:21 UTC ---
>Gccgo doesn't work on Darwin anyhow.  I don't think the problems are
>hard to
>fix.

I expected to get go excluded then as not supported...

[Bug go/55969] libgo fails to build on darwin

[ian at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55969

--- Comment #5 from ian at gcc dot gnu.org <ian at gcc dot gnu.org> 2013-02-05 22:36:31 UTC ---
Author: ian
Date: Tue Feb  5 22:36:20 2013
New Revision: 195768

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195768
Log:
    PR go/55969
    * configure.ac: Disable libgo on some systems where it does not
    work.

Modified:
    trunk/configure
    trunk/configure.ac

[Bug go/55969] libgo fails to build on darwin

[ian at airs dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55969

Ian Lance Taylor <ian at airs dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE

--- Comment #6 from Ian Lance Taylor <ian at airs dot com> 2013-02-05 22:37:42 UTC ---
The top level configure script should no longer build libgo on systems like
Darwin where it is known to be unsupported.

*** This bug has been marked as a duplicate of bug 46986 ***

[Bug go/55969] libgo fails to build on darwin

[ian at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55969

--- Comment #7 from ian at gcc dot gnu.org <ian at gcc dot gnu.org> ---
Author: ian
Date: Thu Oct 23 03:34:02 2014
New Revision: 216573

URL: https://gcc.gnu.org/viewcvs?rev=216573&root=gcc&view=rev
Log:
Commit old ChangeLog entry forgotten in commit of actual change.

    PR go/55969
    * configure.ac: Disable libgo on some systems where it does not
    work.

Modified:
    trunk/ChangeLog