[Bug bootstrap/50461] New: mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[Bug bootstrap/50461] New: mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[gcc@Denis-Excoffier.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

             Bug #: 50461
           Summary: mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/.
                    as previously
    Classification: Unclassified
           Product: gcc
           Version: 4.6.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: gcc@Denis-Excoffier.org


Hi,

I bootstrap gcc-4.6.1 by installing the gmp/, mpfr/ and mpc/ folders directly
in the GCC source tree as suggested in the installation notes.

Yesterday, they created a new mpfr-3.1.0-rc1 as a replacement for mpfc-3.0.1 we
used to have before. Now, with this new mpfr, the bootstrap fails at the step:
"Configuring mpc at stage 1".

Solution:
Compared to mpfr-3.0.1, the new mpfr-3.1.0-rc1 has an additional src folder.
Therefore, the ./configure of GCC has to be modified, eg by replacing (sed
syntax):

s|$$s/mpfr|&/src|g         (1 occurrence)
and
s|$$r/$(HOST_SUBDIR)/mpfr|&/src|g      (2 occurrences)

With this modification, everything works fine. I don't think that the MPFR
people will remove the src folder in the next future. I suppose this is for all
platforms, in any case at least Linux Ubuntu and Darwin Leopard.

Regards,

Denis Excoffier.

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[gcc@Denis-Excoffier.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

--- Comment #1 from Denis Excoffier <gcc@Denis-Excoffier.org> 2011-09-22 05:22:47 UTC ---
Also with mpfr-3.1.0-rc2.

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[gcc@Denis-Excoffier.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

--- Comment #2 from Denis Excoffier <gcc@Denis-Excoffier.org> 2011-10-04 07:07:20 UTC ---
Also with mpfr-3.1.0 and also on Cygwin.

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-10-04
     Ever Confirmed|0                           |1

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-10-04 09:00:45 UTC ---
confirmed with the most recent 4.6 and 4.7 snapshots

checking for MPFR... yes
checking for recent GMP... yes
checking for recent MPFR... no
configure: error: MPFR version >= 2.3.1 required
make[2]: *** [configure-stage1-mpc] Error 1

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[psmith at gnu dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

psmith at gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |psmith at gnu dot org

--- Comment #4 from psmith at gnu dot org 2012-01-21 18:14:00 UTC ---
Oops I filed a duplicate bug #51935

That bug includes a patch to fix the problem.

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-01-21 18:23:20 UTC ---
*** Bug 51935 has been marked as a duplicate of this bug. ***

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[nickc at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

--- Comment #6 from Nick Clifton <nickc at gcc dot gnu.org> 2012-05-09 16:20:33 UTC ---
Author: nickc
Date: Wed May  9 16:20:17 2012
New Revision: 187341

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187341
Log:
    PR bootstrap/50461
    * configure.ac (mpfr-dir): When using in-tree MPFR sources
    allow for the fact that from release v3.1.0 of MPFR the source
    files were moved into a src sub-directory.
    * configure: Regenerate.

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

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[nightstrike at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

nightstrike <nightstrike at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nightstrike at gmail dot
                   |                            |com

--- Comment #7 from nightstrike <nightstrike at gmail dot com> 2012-07-25 19:40:46 UTC ---
This is fixed on trunk and 4.7.1

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-08-23 15:26:07 UTC ---
(In reply to comment #7)
> This is fixed on trunk and 4.7.1

Where's the patch that fixed it on the 4.7 branch?

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |4.8.0
      Known to fail|                            |4.7.1

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-08-23 15:43:48 UTC ---
For the record this is not fixed for 4.7.1, and from looking at the sources
doesn't appear to be fixed in the 4.7 branch at all.

http://gcc.gnu.org/viewcvs/trunk/configure?r1=187341&r2=187340&pathrev=187341
applies cleanly to the 4.7.1 release and fixes the problem.

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[karl at freefriends dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

karl at freefriends dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |karl at freefriends dot org

--- Comment #10 from karl at freefriends dot org 2012-09-21 17:17:27 UTC ---
Also for the record, it remains unfixed in 4.7.2, and the same patch still
fixes it ... (mpc 1.0.1, mpfr 3.1.1, gmp 5.0.5).

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[eyurtese at abo dot fi]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

Evren yurtesen <eyurtese at abo dot fi> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |eyurtese at abo dot fi

--- Comment #11 from Evren yurtesen <eyurtese at abo dot fi> 2012-10-07 21:27:44 UTC ---
I seem to be having this problem in GCC 4.5.4 , 4.6.3 and 4.7.2 :(
There is already MPFR 3.1.1 version out, why GCC is not using it by default?

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-10-08 09:50:52 UTC ---
(In reply to comment #11)
> I seem to be having this problem in GCC 4.5.4 , 4.6.3 and 4.7.2 :(

Ys, as already stated in the comments above, this is only fixed on the trunk.

> There is already MPFR 3.1.1 version out, why GCC is not using it by default?

GCC doesn't use any version of MPFR by default, it uses whichever version you
supply.  There is no advantage to GCC from using 3.1.x, so if it's a problem
then just use an older version.

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[eyurtese at abo dot fi]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

--- Comment #13 from Evren yurtesen <eyurtese at abo dot fi> 2012-10-08 12:16:48 UTC ---
(In reply to comment #12)
> (In reply to comment #11)
> > I seem to be having this problem in GCC 4.5.4 , 4.6.3 and 4.7.2 :(
> 
> Ys, as already stated in the comments above, this is only fixed on the trunk.

Considering that the fix is rather simple, why isnt it applied to 4.7.x and
other supported versions?

> > There is already MPFR 3.1.1 version out, why GCC is not using it by default?
> 
> GCC doesn't use any version of MPFR by default, it uses whichever version you
> supply.  There is no advantage to GCC from using 3.1.x, so if it's a problem
> then just use an older version.

Perhaps I should have been clearer. The instructions at :
http://gcc.gnu.org/wiki/InstallingGCC 
mention using ./contrib/download_prerequisites which downloads old versions
from:
ftp://gcc.gnu.org/pub/gcc/infrastructure/ 
such as MPFR 2.4.2 etc.

What I meant was, why this "download_prerequisites" script, which is provided
by GCC is not updated to use the latest MPFR etc.?

[Bug bootstrap/50461] mpfr.h found in mpfr-3.1.0/src instead of mpfr-3.0.1/. as previously

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461

--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-10-08 12:21:53 UTC ---
Because 2.4.2 has received the most testing and is known to work and to be
sufficient for GCC's needs.