darling-gdb/config/dfp.m4
Ralf Wildenhues 298213562b Sync toplevel and config from GCC.
/:
	Sync from GCC:

	2010-09-30  Michael Eager  <eager@eagercon.com>

	* configure.ac (microblaze): Add target-libssp to noconfigdirs.
	* configure: Regenerate.

	2010-09-21  Iain Sandoe  <iains@gcc.gnu.org>

	* configure.ac (enable-lto): Add Darwin to the list of supported lto
	targets and amend comment.
	* configure: Regenerate.

	2010-09-03  Jack Howarth <howarth@bromo.med.uc.edu>

	* configure.ac: Enable LTO by default on Darwin.
	* configure: Regenerate.

	2010-07-23  Marc Glisse <marc.glisse@normalesup.org>

	PR bootstrap/44455
	* configure.ac (extra_mpfr_configure_flags): Copy from
	extra_mpc_gmp_configure_flags.
	* configure: Re-generated.

config/:
	Sync from GCC:

	2010-09-10  Jonathan Yong  <jon_y@users.sourceforge.net>

	* dfp.m4: Enable decimal float for i?86 cygwin
	and mingw, and for x86_64 mingw.
2010-10-02 14:42:48 +00:00

57 lines
1.4 KiB
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dnl @synopsis GCC_AC_ENABLE_DECIMAL_FLOAT([target triplet])
dnl
dnl Enable C extension for decimal float if target supports it.
dnl
dnl @author Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
AC_DEFUN([GCC_AC_ENABLE_DECIMAL_FLOAT],
[
AC_ARG_ENABLE(decimal-float,
[ --enable-decimal-float={no,yes,bid,dpd}
enable decimal float extension to C. Selecting 'bid'
or 'dpd' choses which decimal floating point format
to use],
[
case $enable_decimal_float in
yes | no | bid | dpd) default_decimal_float=$enable_decimal_float ;;
*) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
esac
],
[
case $1 in
powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux* | s390*-*-linux* | \
i?86*-*-mingw* | x86_64*-*-mingw* | \
i?86*-*-cygwin*)
enable_decimal_float=yes
;;
*)
AC_MSG_WARN([decimal float is not supported for this target, ignored])
enable_decimal_float=no
;;
esac
])
# x86's use BID format instead of DPD
case x$enable_decimal_float in
xyes)
case $1 in
i?86*-*-* | x86_64*-*-*)
enable_decimal_float=bid
;;
*)
enable_decimal_float=dpd
;;
esac
default_decimal_float=$enable_decimal_float
;;
xno)
# ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper
# dependency on libdecnumber.
default_decimal_float=dpd
;;
esac
AC_SUBST(enable_decimal_float)
])