[Bug bootstrap/51072] New: bg

[Bug bootstrap/51072] New: bg

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

             Bug #: 51072
           Summary: bg
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: ubizjak@gmail.com
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu
             Build: x86_64-pc-linux-gnu

[Bug bootstrap/51072] Build with --disable-bootstrap fails in libitm

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

Uros Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|bg                          |Build with
                   |                            |--disable-bootstrap fails
                   |                            |in libitm

--- Comment #1 from Uros Bizjak <ubizjak at gmail dot com> 2011-11-09 21:55:39 UTC ---
Trying to build gcc, configured with:

../gcc-svn/trunk/configure --disable-bootstrap --enable-languages=c

Fails in libitm with:

libtool: compile:  g++ -B/usr/local/x86_64-unknown-linux-gnu/bin/
-B/usr/local/x86_64-unknown-linux-gnu/lib/ -isystem
/usr/local/x86_64-unknown-linux-gnu/include -isystem
/usr/local/x86_64-unknown-linux-gnu/sys-include -DHAVE_CONFIG_H -I.
-I../../../gcc-svn/trunk/libitm
-I../../../gcc-svn/trunk/libitm/config/linux/x86
-I../../../gcc-svn/trunk/libitm/config/linux
-I../../../gcc-svn/trunk/libitm/config/x86
-I../../../gcc-svn/trunk/libitm/config/posix
-I../../../gcc-svn/trunk/libitm/config/generic -I../../../gcc-svn/trunk/libitm
-std=gnu++0x -funwind-tables -fno-exceptions -fno-rtti -Wall -pthread -Werror
-fabi-version=4 -g -O2 -D_GNU_SOURCE -MT beginend.lo -MD -MP -MF
.deps/beginend.Tpo -c ../../../gcc-svn/trunk/libitm/beginend.cc  -fPIC -DPIC -o
.libs/beginend.o
In file included from ../../../gcc-svn/trunk/libitm/libitm_i.h:32:0,
                 from ../../../gcc-svn/trunk/libitm/alloc_c.cc:25:
../../../gcc-svn/trunk/libitm/libitm.h:154:82: error: ‘transaction_pure’
attribute directive ignored [-Werror=attributes]
../../../gcc-svn/trunk/libitm/libitm.h:157:68: error: ‘transaction_pure’
attribute directive ignored [-Werror=attributes]
../../../gcc-svn/trunk/libitm/libitm.h:160:68: error: ‘transaction_pure’
attribute directive ignored [-Werror=attributes]
../../../gcc-svn/trunk/libitm/libitm.h:162:64: error: ‘transaction_pure’
attribute directive ignored [-Werror=attributes]
In file included from ../../../gcc-svn/trunk/libitm/libitm_i.h:39:0,
                 from ../../../gcc-svn/trunk/libitm/alloc_c.cc:25:
../../../gcc-svn/trunk/libitm/local_type_traits:1754:36: error: ISO C++ forbids
declaration of ‘__underlying_type’ with no type [-fpermissive]
../../../gcc-svn/trunk/libitm/local_type_traits:1754:36: error: expected ‘;’ at
end of member declaration
../../../gcc-svn/trunk/libitm/local_type_traits:1754:38: error: ‘type’ does not
name a type
../../../gcc-svn/trunk/libitm/alloc_c.cc:64:43: error: ‘transaction_pure’
attribute directive ignored [-Werror=attributes]
cc1plus: all warnings being treated as errors

This happends with standard Fedora15 installation.

[Bug bootstrap/51072] Build with --disable-bootstrap fails in libitm

[kargl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

kargl at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kargl at gcc dot gnu.org

--- Comment #2 from kargl at gcc dot gnu.org 2011-11-09 22:09:56 UTC ---
It also fails on FreeBSD with this little gem:

% ../gcc4x/configure --prefix=$HOME/work --enable-languages=c,fortran \
--disable-libmudflap --disable-bootstrap
% gmake

...

libtool: compile:  g++ -B/usr/home/kargl/work/i386-unknown-freebsd10.0/bin/
-B/usr/home/kargl/work/i386-unknown-freebsd10.0/lib/ -isystem
/usr/home/kargl/work/i386-unknown-freebsd10.0/include -isystem
/usr/home/kargl/work/i386-unknown-freebsd10.0/sys-include -DHAVE_CONFIG_H -I.
-I../../../gcc4x/libitm -I../../../gcc4x/libitm/config/x86
-I../../../gcc4x/libitm/config/posix -I../../../gcc4x/libitm/config/generic
-I../../../gcc4x/libitm -std=gnu++0x -funwind-tables -fno-exceptions -fno-rtti
-march=i486 -mtune=i386 -fomit-frame-pointer -Wall -pthread -Werror
-fabi-version=4 -g -O2 -MT aatree.lo -MD -MP -MF .deps/aatree.Tpo -c
../../../gcc4x/libitm/aatree.cc  -fPIC -DPIC -o .libs/aatree.o
cc1plus: error: unrecognized command line option "-std=gnu++0x"
gmake[4]: *** [aatree.lo] Error 1
gmake[4]: Leaving directory
`/usr/home/kargl/gcc/obj4x/i386-unknown-freebsd10.0/libitm'
gmake[3]: *** [all-recursive] Error 1
gmake[3]: Leaving directory
`/usr/home/kargl/gcc/obj4x/i386-unknown-freebsd10.0/libitm'
gmake[2]: *** [all] Error 2
gmake[2]: Leaving directory
`/usr/home/kargl/gcc/obj4x/i386-unknown-freebsd10.0/libitm'
gmake[1]: *** [all-target-libitm] Error 2
gmake[1]: Leaving directory `/usr/home/kargl/gcc/obj4x'
gmake: *** [all] Error 2

Please fix.

[Bug bootstrap/51072] Build with --disable-bootstrap fails in libitm

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-11-10 10:42:15 UTC ---
Shouldn't libitm be built with the "stage1" g++ as it is a target library,
even with --disable-bootstrap?

[Bug bootstrap/51072] Build with --disable-bootstrap fails in libitm

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-11-10 10:42:46 UTC ---
Ah, probably it fails to enable C++ as stage1 language.

[Bug bootstrap/51072] Build with --disable-bootstrap fails in libitm

[markus at trippelsdorf dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

Markus Trippelsdorf <markus at trippelsdorf dot de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |markus at trippelsdorf dot
                   |                            |de

--- Comment #5 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2011-11-10 10:54:20 UTC ---
Why is libitm even enabled by default?
IMHO it should be disabled and only be build if you
enable it with an explicit --enable-libitm.

[Bug bootstrap/51072] Build with --disable-bootstrap fails in libitm

[joseph at codesourcery dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

--- Comment #6 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2011-11-10 17:43:30 UTC ---
On Thu, 10 Nov 2011, rguenth at gcc dot gnu.org wrote:

> Shouldn't libitm be built with the "stage1" g++ as it is a target library,
> even with --disable-bootstrap?

Yes, as I said in 
<http://gcc.gnu.org/ml/gcc-patches/2011-11/msg01382.html> building it with 
a pre-installed compiler is wrong.

More precisely: target libraries should always be built with a compiler 
from the same sources as the source tree from which the library is being 
built, configured in the same way except possibly for the host.

For a build with build == host, the compiler used should always be the 
newly built one from the same build.

For a build with build != host - a Canadian cross build - the compiler 
used should be a previously built host-x-target compiler from the same 
sources and identically configured except for the host setting.  (For 
Canadian cross builds it's better to use "make all-gcc" or "make all-host" 
etc., and copy the libraries from the host-x-target build - but if the 
libraries are being rebuilt then the host-x-target compiler is the one 
used.)

The problem here is the wrong compiler being used for a host == build 
case.

[Bug bootstrap/51072] Build with --disable-bootstrap fails in libitm

[gary at intrepid dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

--- Comment #7 from Gary Funck <gary at intrepid dot com> 2011-11-21 02:53:42 UTC ---
(In reply to comment #6)
> On Thu, 10 Nov 2011, rguenth at gcc dot gnu.org wrote:
> 
> > Shouldn't libitm be built with the "stage1" g++ as it is a target library,
> > even with --disable-bootstrap?
> 
> Yes, as I said in 
> <http://gcc.gnu.org/ml/gcc-patches/2011-11/msg01382.html> building it with 
> a pre-installed compiler is wrong.

Isn't it also an error to build libitm unless: (1) --enable-languages=c++ is
asserted, or (2) --enable-libitm is asserted?  For (2) arguably it should imply
that c++ will be built, or disallowed.

We're seeing two failure modes noted in comment #1 and comment #2 for systems
with not-so-modern versions of g++ installed.

[Bug bootstrap/51072] Build with --disable-bootstrap fails in libitm

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl.tools at gmail dot com

--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> 2011-11-28 21:05:33 UTC ---
*** Bug 51335 has been marked as a duplicate of this bug. ***

[Bug bootstrap/51072] [4.7 Regression] Build with --disable-bootstrap fails in libitm

[jsm28 at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

Joseph S. Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-12-16
   Target Milestone|---                         |4.7.0
            Summary|Build with                  |[4.7 Regression] Build with
                   |--disable-bootstrap fails   |--disable-bootstrap fails
                   |in libitm                   |in libitm
     Ever Confirmed|0                           |1

[Bug bootstrap/51072] [4.7 Regression] Build with --disable-bootstrap fails in libitm

[jsm28 at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

Joseph S. Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |steven at gcc dot gnu.org

--- Comment #9 from Joseph S. Myers <jsm28 at gcc dot gnu.org> 2011-12-16 17:58:45 UTC ---
*** Bug 51503 has been marked as a duplicate of this bug. ***

[Bug bootstrap/51072] [4.7 Regression] Build with --disable-bootstrap fails in libitm

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |rth at gcc dot gnu.org
         AssignedTo|unassigned at gcc dot       |rth at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #10 from Richard Henderson <rth at gcc dot gnu.org> 2011-12-16 23:35:27 UTC ---
Mine.

[Bug bootstrap/51072] [4.7 Regression] Build with --disable-bootstrap fails in libitm

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

--- Comment #11 from Richard Henderson <rth at gcc dot gnu.org> 2011-12-17 00:07:17 UTC ---
Author: rth
Date: Sat Dec 17 00:07:10 2011
New Revision: 182424

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182424
Log:
PR bootstrap/51072
        * config-lang.in (target_libs): Include target-libitm.

Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/config-lang.in

[Bug bootstrap/51072] [4.7 Regression] Build with --disable-bootstrap fails in libitm

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #12 from Richard Henderson <rth at gcc dot gnu.org> 2011-12-17 00:13:12 UTC ---
http://gcc.gnu.org/ml/gcc-patches/2011-12/msg01292.html

[Bug bootstrap/51072] [4.7 Regression] Build with --disable-bootstrap fails in libitm

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

--- Comment #13 from Richard Henderson <rth at gcc dot gnu.org> 2011-12-17 21:40:48 UTC ---
Author: rth
Date: Sat Dec 17 21:40:45 2011
New Revision: 182445

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182445
Log:
Revert "fix" for PR bootstrap/51072

Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/config-lang.in

[Bug bootstrap/51072] [4.7 Regression] Build with --disable-bootstrap fails in libitm

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |

--- Comment #14 from Richard Henderson <rth at gcc dot gnu.org> 2011-12-18 18:35:36 UTC ---
So, that fix didn't work...

[Bug bootstrap/51072] [4.7 Regression] Build with --disable-bootstrap fails in libitm

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1

--- Comment #15 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-04 13:33:55 UTC ---
We need at least some solution, like forcefully enabling C++ or disable libitm
if C++ is not in stage$N-languages.

[Bug bootstrap/51072] [4.7 Regression] Build with --disable-bootstrap fails in libitm

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

--- Comment #16 from Richard Henderson <rth at gcc dot gnu.org> 2012-01-05 01:35:29 UTC ---
Author: rth
Date: Thu Jan  5 01:35:25 2012
New Revision: 182899

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182899
Log:
PR bootstrap/51072
        * configure.ac: Disable libitm if c++ is not enabled.
        * configure: Rebuild.

Modified:
    trunk/ChangeLog
    trunk/configure
    trunk/configure.ac

[Bug bootstrap/51072] [4.7 Regression] Build with --disable-bootstrap fails in libitm

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

--- Comment #17 from Richard Henderson <rth at gcc dot gnu.org> 2012-01-05 02:25:10 UTC ---
Author: rth
Date: Thu Jan  5 02:25:04 2012
New Revision: 182900

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182900
Log:
PR bootstrap/51072
        * configure.ac: Fix regexp for same.
        * configure: Rebuild.

Modified:
    trunk/ChangeLog
    trunk/configure
    trunk/configure.ac

[Bug bootstrap/51072] [4.7 Regression] Build with --disable-bootstrap fails in libitm

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51072

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #18 from Richard Henderson <rth at gcc dot gnu.org> 2012-01-05 02:44:42 UTC ---
Fixed.