[Bug c/51853] New: MPFR assertion failure with Python: p >= 2 && p <= ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))

["julien at trigofacile dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51853

             Bug #: 51853
           Summary: MPFR assertion failure with Python: p >= 2 && p <=
                    ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: julien@trigofacile.com


Hi,

Trying to build Python 2.7.2 (and also 3.2.2) with GCC 4.6.2 and MPFR 3.1.0, I
obtain the following error on HP PA-8600 running Debian (it is in
fact gcc61 in the GCC Compile Farm <http://gcc.gnu.org/wiki/CompileFarm>):

/home/iulius/autobuild/bin/gcc-core-4.6.2/bin/gcc -pthread -c  -DNDEBUG -g
-fwrapv -O3 -Wall -Wstrict-prototypes    -I. -IInclude -I./Include   
-DPy_BUILD_CORE -o Objects/longobject.o Objects/longobject.c
init2.c:52: MPFR assertion failed: p >= 2 && p <=
((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))
Objects/longobject.c: In function 'PyLong_FromString':
Objects/longobject.c:2002:36: internal compiler error: Aborted
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make: *** [Objects/longobject.o] Error 1




Configured with: ../gcc-core-4.6.2-src/configure
--prefix=/home/iulius/autobuild/bin/gcc-core-4.6.2
--with-gmp=/home/iulius/autobuild/bin/gmp-5.0.2
--with-mpfr=/home/iulius/autobuild/bin/mpfr-3.1.0
--with-mpc=/home/iulius/autobuild/bin/mpc-0.9 --disable-nls
--enable-threads=posix --disable-multilib


-- 
Julien