[Bug bootstrap/48556] New: Gcc 4.6.0 bootstrap fails with in-tree GMP/MPFR/MPC

[Bug bootstrap/48556] New: Gcc 4.6.0 bootstrap fails with in-tree GMP/MPFR/MPC

[fago at earthlink dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48556

           Summary: Gcc 4.6.0 bootstrap fails with in-tree GMP/MPFR/MPC
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: fago@earthlink.net


I'm trying to build gcc 4.6.0 on OpenSuSE 11.2 x86_64 with latest MPC, 
MPFR, GMP built in-tree (vers 0.9, 3.0.1, 5.0.1). I've always used 
in-tree builds in the past as they are the least troublesome.

Configuring with:

../gcc-4.6.0/configure --prefix=/usr/local \
--libdir=/usr/local/lib64 --program-suffix=-4.6 \
--with-arch=corei7 --enable-languages=c,c++,fortran --enable-gold \
--enable-checking=release --with-system-zlib --enable-linux-futex \
--without-system-libunwind --with-ppl-lib=/usr/lib64 \
--with-ppl-include=/usr/include --with-cloog-lib=/usr/lib64 \
--with-cloog-include=/usr/include --enable-lto

I get several errors such as:

[...]/gcc/gcc-build-4.6.0/./mpc/src/.libs/libmpc.a(pow.o): In function
mpc_pow_exact':                                                                 
[...]/gcc/gcc-build-4.6.0/mpc/src/../../../gcc-4.6.0/mpc/src/pow.c:123:
undefined reference to `mpfr_get_z_2exp'


Evidently this is caused by MPC picking up the older incompatible 
system version of MPFR? Shouldn't this be taken care of by the 
in-tree config somehow?


I tried to get around this by installing the latest versions of 
mpc/mpfr/gmp/ppl/cloog that are available from the SuSE gcc-devel
repository. I believe these are 0.8.2, 3.0.0, 5.0.1, 0.11-15, 0.15.10.

However, this did not appear to solve the issue.

Further removing the --with-ppl-* and --with-cloog-* configure flags
resulted in a successful bootstrap. Perhaps these flags are making their
way into the in-tree builds of mpc/mpfr/gmp somehow?

[Bug bootstrap/48556] Gcc 4.6.0 bootstrap fails with in-tree GMP/MPFR/MPC

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48556

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-04-12 10:27:10 UTC ---
You should always prefer the system versions of these libraries.  For example
ppl links against gmp already.

[Bug bootstrap/48556] Gcc 4.6.0 bootstrap fails with in-tree GMP/MPFR/MPC

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48556

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

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

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-01-28 05:29:35 UTC ---
Since ppl/cloog depend on GMP, you really need these libraries to build in-tree
also.