[Bug fortran/51103] New: configure: error: GNU Fortran is not working

[Bug fortran/51103] New: configure: error: GNU Fortran is not working

[richalewis at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

             Bug #: 51103
           Summary: configure: error: GNU Fortran is not working
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: richalewis@gmail.com


Stage 3 fortran build not working. Installed latest MPFR and GMP libraries,
configured with: ../configure --prefix=/usr/local --with-mpfr=/usr/local
--with-gmp=/usr/local

[Bug fortran/51103] configure: error: GNU Fortran is not working

[kargl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

kargl at gcc dot gnu.org changed:

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

--- Comment #1 from kargl at gcc dot gnu.org 2011-11-12 06:31:17 UTC ---
Did you read the installation instruction?

[Bug fortran/51103] configure: error: GNU Fortran is not working

[richalewis at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

--- Comment #2 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 07:12:54 UTC ---
I've been building GNU software since 1988. Perhaps I missed something?

[Bug fortran/51103] configure: error: GNU Fortran is not working

[richalewis at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

--- Comment #3 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 07:16:43 UTC ---
Every language builds, except Fortran. Is there something I missed trying to
build libgfortran.a?

[Bug fortran/51103] configure: error: GNU Fortran is not working

[kargl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

--- Comment #4 from kargl at gcc dot gnu.org 2011-11-12 07:20:10 UTC ---
(In reply to comment #2)
> I've been building GNU software since 1988. Perhaps I missed something?

Yes, I believe you did, which is why I asked if you read the
installation instruction.  You stated that your configure line started
with "../configure", which is an unsupported methods to build gcc.

http://gcc.gnu.org/install/configure.html

[Bug fortran/51103] configure: error: GNU Fortran is not working

[richalewis at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

--- Comment #5 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 08:33:13 UTC ---
I see... so suddenly from this year, building from a directory 1 level deeper
than the source distribution is "unsupported" even though this has been working
for years. However I was able to successfully build the full compiler suite
(except for Fortran). You didn't read the log I attached in which the error has
nothing to do with the level of directory I ran the config script from. 
On Nov 12, 2011, at 6:20 PM, kargl at gcc dot gnu.org wrote:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103
> 
> --- Comment #4 from kargl at gcc dot gnu.org 2011-11-12 07:20:10 UTC ---
> (In reply to comment #2)
>> I've been building GNU software since 1988. Perhaps I missed something?
> 
> Yes, I believe you did, which is why I asked if you read the
> installation instruction.  You stated that your configure line started
> with "../configure", which is an unsupported methods to build gcc.
> 
> http://gcc.gnu.org/install/configure.html
> 
> -- 
> Configure bugmail: http://gcc.gnu.org/bugzilla/userprefs.cgi?tab=email
> ------- You are receiving this mail because: -------
> You reported the bug.

[Bug fortran/51103] configure: error: GNU Fortran is not working

[janus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

janus at gcc dot gnu.org changed:

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

--- Comment #6 from janus at gcc dot gnu.org 2011-11-12 13:39:37 UTC ---
(In reply to comment #5)
> You didn't read the log I attached

... which is probably because you didn't actually attach anything. Please give
the relevant information, instead of telling us how long you've been building
GNU software (which is completely irrelevant here).

Thanks,
Janus

[Bug fortran/51103] configure: error: GNU Fortran is not working

[richalewis at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

--- Comment #7 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 14:51:32 UTC ---
Created attachment 25807
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25807
libgfortran build log

[Bug fortran/51103] configure: error: GNU Fortran is not working

[sgk at troutmask dot apl.washington.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

--- Comment #8 from Steve Kargl <sgk at troutmask dot apl.washington.edu> 2011-11-12 16:52:37 UTC ---
On Sat, Nov 12, 2011 at 02:51:32PM +0000, richalewis at gmail dot com wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103
> 
> --- Comment #7 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 14:51:32 UTC ---
> Created attachment 25807
>   --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25807
> libgfortran build log
> 
> -- 

In what directory is the gcc source code?

In what directory did you run configure?

[Bug fortran/51103] configure: error: GNU Fortran is not working

[richalewis at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

--- Comment #9 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 17:22:42 UTC ---
(In reply to comment #8)
> On Sat, Nov 12, 2011 at 02:51:32PM +0000, richalewis at gmail dot com wrote:
> > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103
> > 
> > --- Comment #7 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 14:51:32 UTC ---
> > Created attachment 25807 [details]
> >   --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25807
> > libgfortran build log
> > 
> > -- 
> 
> In what directory is the gcc source code?
> 
> In what directory did you run configure?

./gcc-4.6.2

configure and make in the top level directory, libgfortran.a build fails

[Bug fortran/51103] configure: error: GNU Fortran is not working

[richalewis at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

--- Comment #10 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 17:25:05 UTC ---
Created attachment 25808
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25808
gcc-4.6.2/x86_64-apple-darwin11.2.0/libgfortran/config.log

Builds to completion if I don't build fortran

[Bug fortran/51103] configure: error: GNU Fortran is not working

[sgk at troutmask dot apl.washington.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

--- Comment #11 from Steve Kargl <sgk at troutmask dot apl.washington.edu> 2011-11-12 17:29:38 UTC ---
On Sat, Nov 12, 2011 at 05:22:42PM +0000, richalewis at gmail dot com wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103
> 
> --- Comment #9 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 17:22:42 UTC ---
> (In reply to comment #8)
> > On Sat, Nov 12, 2011 at 02:51:32PM +0000, richalewis at gmail dot com wrote:
> > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103
> > > 
> > > --- Comment #7 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 14:51:32 UTC ---
> > > Created attachment 25807 [details]
> > >   --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25807
> > > libgfortran build log
> > > 
> > > -- 
> > 
> > In what directory is the gcc source code?
> > 
> > In what directory did you run configure?
> 
> ./gcc-4.6.2
> 
> configure and make in the top level directory, libgfortran.a build fails
> 

What happens if you actually follow the installation instruction?

Building gcc within its source directory hierarchy has not been
supported for years.   One can get lucky and have a successful
build, but it is neither guaranteed to work nor recommended.

[Bug fortran/51103] configure: error: GNU Fortran is not working

[richalewis at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

--- Comment #12 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 17:53:39 UTC ---

This is what I originally did:

1. tar xvjf gcc-4.6.2.tar.bz
2. mkdir build
3. ../gcc-4.6.2/configure
4. make -j 8

Doesn't matter where I build it from, it fails

(In reply to comment #11)
> On Sat, Nov 12, 2011 at 05:22:42PM +0000, richalewis at gmail dot com wrote:
> > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103
> > 
> > --- Comment #9 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 17:22:42 UTC ---
> > (In reply to comment #8)
> > > On Sat, Nov 12, 2011 at 02:51:32PM +0000, richalewis at gmail dot com wrote:
> > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103
> > > > 
> > > > --- Comment #7 from Richard Lewis <richalewis at gmail dot com> 2011-11-12 14:51:32 UTC ---
> > > > Created attachment 25807 [details]
> > > >   --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25807
> > > > libgfortran build log
> > > > 
> > > > -- 
> > > 
> > > In what directory is the gcc source code?
> > > 
> > > In what directory did you run configure?
> > 
> > ./gcc-4.6.2
> > 
> > configure and make in the top level directory, libgfortran.a build fails
> > 
> 
> What happens if you actually follow the installation instruction?
> 
> Building gcc within its source directory hierarchy has not been
> supported for years.   One can get lucky and have a successful
> build, but it is neither guaranteed to work nor recommended.

[Bug fortran/51103] configure: error: GNU Fortran is not working

[sgk at troutmask dot apl.washington.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

--- Comment #13 from Steve Kargl <sgk at troutmask dot apl.washington.edu> 2011-11-12 17:58:18 UTC ---
On Sat, Nov 12, 2011 at 05:53:39PM +0000, richalewis at gmail dot com wrote:
> This is what I originally did:
> 
> 1. tar xvjf gcc-4.6.2.tar.bz
> 2. mkdir build
> 3. ../gcc-4.6.2/configure
> 4. make -j 8
> 
> Doesn't matter where I build it from, it fails
> 

--with-gmp=something_goes_here
--with-mpfr=something_goes_here
--with-mpc=something_goes_here

[Bug fortran/51103] configure: error: GNU Fortran is not working

[fxcoudert at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> changed:

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

--- Comment #14 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> 2011-11-12 23:55:29 UTC ---
So, you get twice a segfault running the compiler:

configure:15421: /Users/rlewis/src/gcc-4.6.2/build/./gcc/gfortran
-B/Users/rlewis/src/gcc-4.6.2/build/./gcc/
-B/usr/local/x86_64-apple-darwin11.2.0/bin/
-B/usr/local/x86_64-apple-darwin11.2.0/lib/ -isystem
/usr/local/x86_64-apple-darwin11.2.0/include -isystem
/usr/local/x86_64-apple-darwin11.2.0/sys-include    -c -g -O2  conftest.f >&5
f951: internal compiler error: Segmentation fault: 11
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
configure:15421: $? = 1
configure: failed program was:
| 
|       program foo
|       real, parameter :: bar = sin (12.34 / 2.5)
|       end program foo
configure:15425: result: no


Now, can you try to run this:

/Users/rlewis/src/gcc-4.6.2/build/gcc/f951 -quiet test.f

where test.f contains:

       program foo
       real, parameter :: bar = sin (12.34 / 2.5)
       end program foo

If it segfaults, please run it again inside gdb and try to get us a backtrace.

[Bug fortran/51103] configure: error: GNU Fortran is not working

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

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

--- Comment #15 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-15 00:46:50 UTC ---
Darwin's GCC can sometimes produce a broken MPRF.  This is not a GCC bug.

[Bug fortran/51103] configure: error: GNU Fortran is not working

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51103

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |d.barrows at me dot com

--- Comment #16 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-19 23:38:05 UTC ---
*** Bug 51607 has been marked as a duplicate of this bug. ***