[erlang-questions] problems building r11b-3

P <>
Thu Dec 11 00:20:58 CET 2008




          Hej Ulf  !

   It's not that the different builds are keept "on top" of each others
(and built in some specific order)?

   I've remember I had some strange results from time to time resolved by 
viping out the previously builds entirely and then rebuilding the latest
again.

                        Regards
                        Per Einar


------------------------------------------------------------------------------
Per Einar 

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s

onsdag 10 december 2008 17:54 skrev Ulf Wiger:
> ...except that failed too.  :(
> 
> /U
> 
> 2008/12/10 Ulf Wiger <>:
> > Thanks. Indeed it said that floating point exceptions were
> > unreliable. I think I'll just disable hipe, since I have a good
> > R12B install already.
> >
> > BR,
> > Ulf W
> >
> > 2008/12/10 Mikael Pettersson <>:
> >> Ulf Wiger writes:
> >>  > Thanks, That got me further:
> >> [snip]
> >>  > obj/i686-pc-linux-gnu/opt/hybrid/ttsl_drv.o -lutil -ldl -lm
> >>  > -lpthread -lncurses -L../lib/internal/i686-pc-linux-gnu
> >>  > /home/uwiger/src/otp/otp_src_R11B-3/erts/obj/i686-pc-linux-gnu/libz.a
> >>  > -lethread -lpthread -lerts_internal_r -lrt
> >>  > obj/i686-pc-linux-gnu/opt/hybrid/hipe_x86_bifs.o: In function
> >>  > `nbif_handle_fp_exception':
> >>  > /home/uwiger/src/otp/otp_src_R11B-3/erts/emulator/i686-pc-linux-gnu/opt/hybrid/hipe_x86_bifs.S:269:
> >>  > undefined reference to `erts_restore_fpu'
> >>  > collect2: ld returned 1 exit status
> >>  > make[3]: *** [/home/uwiger/src/otp/otp_src_R11B-3/bin/i686-pc-linux-gnu/beam.hybrid]
> >>  > Error 1
> >>
> >> Looks like erts/configure didn't detect working FP exceptions on this box,
> >> which since it's an x86 most likely is a compile problem with the fpe-test.c
> >> program embedded in erts/configure.in. Without FP exceptions you can't have
> >> HiPE (except on ARM which assumes no HW FPU).
> >>
> >> I believe there are now (R12) explicit checks in erts/configure to disable
> >> HiPE on x86/powerpc/sparc if FP exceptions don't work, perhaps those checks
> >> don't exist in R11.
> >>
> >> Either run erts/configure again and look for messages about reliable floating-
> >> point exceptions not working, or look in erts/i686-pc-linux-gnu/config.h for
> >> a #define NO_FPE_SIGNALS.
> >>
> >> If you can't resolve the lack of FP exception support, you'll have to
> >> reconfigure with --disable-hipe.
> >>
> >
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