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comparison config/dfp.m4 @ 68:561a7518be6b

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update gcc-4.6
author Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
date Sun, 21 Aug 2011 07:07:55 +0900
parents
children 04ced10e8804
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67:f6334be47118 68:561a7518be6b
1 dnl @synopsis GCC_AC_ENABLE_DECIMAL_FLOAT([target triplet])
2 dnl
3 dnl Enable C extension for decimal float if target supports it.
4 dnl
5 dnl @author Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
6
7 AC_DEFUN([GCC_AC_ENABLE_DECIMAL_FLOAT],
8 [
9 AC_ARG_ENABLE(decimal-float,
10 [ --enable-decimal-float={no,yes,bid,dpd}
11 enable decimal float extension to C. Selecting 'bid'
12 or 'dpd' choses which decimal floating point format
13 to use],
14 [
15 case $enable_decimal_float in
16 yes | no | bid | dpd) default_decimal_float=$enable_decimal_float ;;
17 *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
18 Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
19 esac
20 ],
21 [
22 case $1 in
23 powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux* | s390*-*-linux* | \
24 i?86*-*-mingw* | x86_64*-*-mingw* | \
25 i?86*-*-cygwin*)
26 enable_decimal_float=yes
27 ;;
28 *)
29 AC_MSG_WARN([decimal float is not supported for this target, ignored])
30 enable_decimal_float=no
31 ;;
32 esac
33 ])
34
35 # x86's use BID format instead of DPD
36 case x$enable_decimal_float in
37 xyes)
38 case $1 in
39 i?86*-*-* | x86_64*-*-*)
40 enable_decimal_float=bid
41 ;;
42 *)
43 enable_decimal_float=dpd
44 ;;
45 esac
46 default_decimal_float=$enable_decimal_float
47 ;;
48 xno)
49 # ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper
50 # dependency on libdecnumber.
51 default_decimal_float=dpd
52 ;;
53 esac
54 AC_SUBST(enable_decimal_float)
55
56 ])