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