[erlang-questions] problems building r11b-3

Mikael Pettersson <>
Thu Dec 11 09:54:16 CET 2008


Ulf Wiger writes:
 > ...except that failed too.  :(

Without details of that failure there's not much I can suggest.

You did do the `./configure --disable-hipe; make` in a clean
directory from a freshly unpacked tarball, right? Or at least
you did a `make eclean` before the re-configure?

 > 
 > /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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