------- Comment #5 from howarth at nitro dot med dot uc dot edu 2010-09-03
21:58 -------
Okay the problem is that pre-r163815/r163816, we had in gcc/configure.ac...
# x86's use BID format instead of DPD
case x$enable_decimal_float in
xyes)
case $target in
i?86*-*-linux* | x86_64*-*-linux*)
enable_decimal_float=bid
;;
*)
enable_decimal_float=dpd
;;
esac
;;
xno)
# ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper
# dependency on libdecnumber.
enable_decimal_float=dpd
;;
esac
whereas in libgcc/configure.ac, we had a special case of just...
# x86's use BID format instead of DPD
if test x$enable_decimal_float = xyes; then
case $host in
i?86*-*-linux* | x86_64*-*-linux*)
enable_decimal_float=bid
;;
*)
enable_decimal_float=dpd
;;
esac
fi
that did nothing in the case of enable_decimal_float=no.
Our problem is that dfp.m4 is too coarse of a solution as it forces the same
test to be used everywhere...
# x86's use BID format instead of DPD
case x$enable_decimal_float in
xyes)
case $target in
i?86*-*-* | x86_64*-*-*)
enable_decimal_float=bid
;;
*)
enable_decimal_float=dpd
;;
esac
;;
xno)
# ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper
# dependency on libdecnumber.
enable_decimal_float=dpd
;;
esac
and invalidly sets enable_decimal_float=dpd for libgcc.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45524
