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comparison config/enable.m4 @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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-1:000000000000 0:a06113de4d67
1 dnl ----------------------------------------------------------------------
2 dnl This whole bit snagged from libstdc++-v3.
3
4 dnl
5 dnl GCC_ENABLE
6 dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING)
7 dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, permit a|b|c)
8 dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, SHELL-CODE-HANDLER)
9 dnl
10 dnl See docs/html/17_intro/configury.html#enable for documentation.
11 dnl
12 AC_DEFUN([GCC_ENABLE],[dnl
13 m4_define([_g_switch],[--enable-$1])dnl
14 m4_define([_g_help],[AC_HELP_STRING(_g_switch$3,[$4 @<:@default=$2@:>@])])dnl
15 AC_ARG_ENABLE($1,_g_help,
16 m4_bmatch([$5],
17 [^permit ],
18 [[
19 case "$enableval" in
20 m4_bpatsubst([$5],[permit ])) ;;
21 *) AC_MSG_ERROR(Unknown argument to enable/disable $1) ;;
22 dnl Idea for future: generate a URL pointing to
23 dnl "onlinedocs/configopts.html#whatever"
24 esac
25 ]],
26 [^$],
27 [[
28 case "$enableval" in
29 yes|no) ;;
30 *) AC_MSG_ERROR(Argument to enable/disable $1 must be yes or no) ;;
31 esac
32 ]],
33 [[$5]]),
34 [enable_]m4_bpatsubst([$1],-,_)[=][$2])
35 m4_undefine([_g_switch])dnl
36 m4_undefine([_g_help])dnl
37 ])
38