Commit | Line | Data |
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11c94d12 TT |
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 |