Re: [gentoo-embedded] GCC 4.3 fails on mpfr

[Mike Frysinger]

On Wednesday 07 May 2008, Ned Ludd wrote:
> On Wed, 2008-05-07 at 00:26 -0400, Mike Frysinger wrote:
> > On Tuesday 06 May 2008, Ned Ludd wrote:
> > > On Tue, 2008-05-06 at 17:24 -0400, Mike Frysinger wrote:
> > > > On Tuesday 06 May 2008, Christopher Friedt wrote:
> > > > > This is a 'chicken / egg' problem. In order to build a cross
> > > > > compiler for arch X you need mpfr compiled for arch X. In order to
> > > > > build mpfr for arch X you need a toolchain for arch X.
> > > > >
> > > > > Try building the cross-compiler without mpfr first, then build
> > > > > libmpfr, and then rebuild the cross compiler.
> > > >
> > > > you cant build gcc-4.3 without gmp and mpfr.  they're hard
> > > > requirements. but they're requirements that the host system has it,
> > > > not that they are cross-compiled for the target.
> > >
> > > this might pose a problem at Gentoo as I don't think mpfr can even be
> > > cross compiled in the first place. I might be wrong but I seem to
> > > recall fighting with it in the last week using (
> > > arm-softfloat-linux-uclibc || arm*-softloat-linux-gnueabi).
> >
> > i said they are host libraries, not target libraries.  gcc itself uses
> > them in order to even execute in the first place starting with gcc-4.3.
> >
> > what Christopher is probably referring to is gfortran support ... it
> > requires mpfr/gmp to be cross-compiled.
> >
> > but to address your question, they both do cross-compile fine.  i just
> > did it two days ago for mingw32 target so that i could build up a
> > gfortran cross-compiler.
>
> Really? I'm getting (just reproduced on a few crossdev install)
>
>
> Notice the LDFLAGS.. yet still.
>
> armv5te-softfloat-linux-gnueabi-gcc
> -shared  .libs/exceptions.o .libs/extract.o .libs/uceil_exp2.o
> .libs/uceil_log2.o .libs/ufloor_log2.o .libs/add.o .libs/add1.o
> .libs/add_ui.o .libs/agm.o .libs/clear.o .libs/cmp.o .libs/cmp_abs.o
> .libs/cmp_si.o .libs/cmp_ui.o .libs/comparisons.o .libs/div_2exp.o
> .libs/div_2si.o .libs/div_2ui.o .libs/div.o .libs/div_ui.o .libs/dump.o
> .libs/eq.o .libs/exp10.o .libs/exp2.o .libs/exp3.o .libs/exp.o .libs/frac.o
> .libs/get_d.o .libs/get_exp.o .libs/get_str.o .libs/init.o .libs/inp_str.o
> .libs/isinteger.o .libs/isinf.o .libs/isnan.o .libs/isnum.o
> .libs/const_log2.o .libs/log.o .libs/mul_2exp.o .libs/mul_2si.o
> .libs/mul_2ui.o .libs/mul.o .libs/mul_ui.o .libs/neg.o .libs/next.o
> .libs/out_str.o .libs/const_pi.o .libs/pow.o .libs/pow_si.o .libs/pow_ui.o
> .libs/print_raw.o .libs/print_rnd_mode.o .libs/random2.o .libs/random.o
> .libs/reldiff.o .libs/round_prec.o .libs/set.o .libs/setmax.o
> .libs/setmin.o .libs/set_d.o .libs/set_dfl_prec.o .libs/set_exp.o
> .libs/set_rnd.o .libs/set_f.o .libs/set_prc_raw.o .libs/set_prec.o
> .libs/set_q.o .libs/set_si.o .libs/set_str.o .libs/set_str_raw.o
> .libs/set_ui.o .libs/set_z.o .libs/sqrt.o .libs/sqrt_ui.o .libs/sub.o
> .libs/sub1.o .libs/sub_ui.o .libs/rint.o .libs/ui_div.o .libs/ui_sub.o
> .libs/urandomb.o .libs/get_z_exp.o .libs/swap.o .libs/factorial.o
> .libs/cosh.o .libs/sinh.o .libs/tanh.o .libs/acosh.o .libs/asinh.o
> .libs/atanh.o .libs/atan.o .libs/cmp2.o .libs/exp_2.o .libs/asin.o
> .libs/const_euler.o .libs/cos.o .libs/sin.o .libs/tan.o .libs/fma.o
> .libs/fms.o .libs/hypot.o .libs/log1p.o .libs/expm1.o .libs/log2.o
> .libs/log10.o .libs/ui_pow.o .libs/ui_pow_ui.o .libs/minmax.o .libs/dim.o
> .libs/signbit.o .libs/copysign.o .libs/setsign.o .libs/gmp_op.o
> .libs/init2.o .libs/acos.o .libs/sin_cos.o .libs/set_nan.o .libs/set_inf.o
> .libs/powerof2.o .libs/gamma.o .libs/set_ld.o .libs/get_ld.o .libs/cbrt.o
> .libs/volatile.o .libs/fits_sshort.o .libs/fits_sint.o .libs/fits_slong.o
> .libs/fits_ushort.o .libs/fits_uint.o .libs/fits_ulong.o
> .libs/fits_uintmax.o .libs/fits_intmax.o .libs/get_si.o .libs/get_ui.o
> .libs/zeta.o .libs/cmp_d.o .libs/erf.o .libs/inits.o .libs/inits2.o
> .libs/clears.o .libs/sgn.o .libs/check.o .libs/sub1sp.o .libs/version.o
> .libs/mpn_exp.o .libs/mpfr-gmp.o .libs/mp_clz_tab.o .libs/sum.o
> .libs/add1sp.o .libs/free_cache.o .libs/si_op.o .libs/cmp_ld.o
> .libs/set_ui_2exp.o .libs/set_si_2exp.o .libs/set_uj.o .libs/set_sj.o
> .libs/get_sj.o .libs/get_uj.o .libs/get_z.o .libs/iszero.o .libs/cache.o
> .libs/sqr.o .libs/int_ceil_log2.o .libs/isqrt.o .libs/strtofr.o
> .libs/pow_z.o .libs/logging.o .libs/mulders.o .libs/get_f.o .libs/round_p.o
> .libs/erfc.o .libs/atan2.o .libs/subnormal.o .libs/const_catalan.o
> .libs/root.o .libs/sec.o .libs/csc.o .libs/cot.o .libs/eint.o .libs/sech.o
> .libs/csch.o .libs/coth.o .libs/round_near_x.o .libs/constant.o
> .libs/abort_prec_max.o .libs/stack_interface.o .libs/lngamma.o
> .libs/zeta_ui.o .libs/set_d64.o .libs/get_d64.o .libs/jn.o .libs/yn.o
> .libs/remquo.o .libs/get_patches.o  -L/home/solar/Desktop/gizard/usr/lib
> -L/home/solar/Desktop/gizard/lib
> -L/usr/armv5te-softfloat-linux-gnueabi/usr/lib
> -L/usr/armv5te-softfloat-linux-gnueabi/lib /usr/lib/libgmp.so  -Wl,-soname
> -Wl,libmpfr.so.1 -o .libs/libmpfr.so.1.1.1 /usr/lib/libgmp.so: file not
> recognized: File format not recognized collect2: ld returned 1 exit status
> make[1]: *** [libmpfr.la] Error 1
> make[1]: Leaving directory
> `/home/solar/Desktop/gizard/tmp/portage/dev-libs/mpfr-2.3.1/work/mpfr-2.3.1
>' make: *** [all-recursive] Error 1

looks like libtool hate, probably due to the stupid -rpath /usr/lib given to 
the libtool link line.  i bet if you deleted /usr/lib/libgmp.la it'd work ...
-mike