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5.2.2 °ìÈÌŪ¤Ê¥×¥í¥°¥é¥à¤È¥Õ¥¡¥¤¥ë¤ÎÄ´ºº

¤³¤ì¤é¤Î¥Þ¥¯¥í¤Ï¡¤“ÆÃÄê¤Î”¥Æ¥¹¥È¥Þ¥¯¥í¤Ë¤è¤Ã¤Æ¥«¥Ð¡¼¤µ¤ì¤Æ¤¤¤Ê¤¤¥×¥í¥° ¥é¥à¤ò¸«¤Ä¤±¤ë¤Ë»ÈÍѤ·¤Þ¤¹¡¥¥×¥í¥°¥é¥à¤Î¸ºß¤ò³Îǧ¤¹¤ë¤À¤±¤Ç¤Ê¤¯¡¤¤½¤Îư ºî¤òÄ´ºº¤¹¤ëɬÍפ¬¤¢¤ë¾ì¹ç¡¤¤½¤¦¤¹¤ë¤¿¤á¤ËÆÈ¼«¤Î¥Æ¥¹¥È¤ò½ñ¤¯É¬Íפ¬¤¢¤ê¤Þ ¤¹(see Writing Tests)¡¥¥Ç¥Õ¥©¥ë¥È¤Ç¡¤¤³¤ì¤é¤Î¥Þ¥¯¥í¤Ï´Ä¶­ÊÑ¿ô PATH¤ò»ÈÍѤ·¤Þ¤¹¡¥¥æ¡¼¥¶¤ÎPATH¤Ë¤Ê¤¤²ÄǽÀ­¤¬¤¢¤ë¥×¥í¥°¥é¥à ¤òÄ´ºº¤¹¤ëɬÍפ¬¤¢¤ë¾ì¹ç¡¤°Ê²¼¤Î¤è¤¦¤Ë¤·¤Æ¡¤¥Ñ¥¹¤òÊÔ½¸¤·¤ÆÅϤ¹¤³¤È¤¬²Äǽ ¤Ç¤¹¡¥

AC_PATH_PROG([INETD], [inetd], [/usr/libexec/inetd],
             [$PATH:/usr/libexec:/usr/sbin:/usr/etc:etc])

AC_CHECK_PROGÅù¤ËÅϤ¹variable¤ò¡¤Àµ³Î¤ËÀë¸À¤¹¤ë¤³¤È¤ò¶¯¤¯¿ä ¾©¤·¤Þ¤¹¡¥¾ÜºÙ¤Ï¡¤AC_ARG_VAR¤ÈSee Setting Output Variables.

Macro: AC_CHECK_PROG (variable, prog-to-check-for, value-if-found, [value-if-not-found], [path], [reject])

PATH¤Ë¡¤¥×¥í¥°¥é¥àprog-to-check-for¤¬Â¸ºß¤¹¤ë¤«¤É¤¦¤«Ä´ºº¤· ¤Þ¤¹¡¥¸«¤Ä¤«¤Ã¤¿¾ì¹ç¡¤variable¤òvalue-if-found¤ËÀßÄꤷ¡¤¤½¤ì °Ê³°¤Ç¡¤value-if-not-found¤¬Í¿¤¨¤é¤ì¤Æ¤¤¤ë¾ì¹ç¤Ï¡¤¤½¤ì¤ËÀßÄꤷ¤Þ¤¹¡¥ ¤¿¤È¤¨reject(ÀäÂХѥ¹¤Î¥Õ¥¡¥¤¥ë̾)¤¬ºÇ½é¤Î¥µ¡¼¥Á¥Ñ¥¹¤Ç¸«¤Ä¤«¤Ã¤¿¾ì ¹ç¤Ç¤â¡¤¤½¤ì¤Ï¸õÊ䤫¤é³°¤·¤Þ¤¹¡¥¤³¤Î¾ì¹ç¡¤prog-to-check-for¤¬¸«¤Ä ¤«¤Ã¤¿reject¤Ç¤Ï¤Ê¤¤ÀäÂХѥ¹¤Î¥Õ¥¡¥¤¥ë̾¤ò»ÈÍѤ·¡¤variable¤ò ÀßÄꤷ¤Þ¤¹¡¥variable¤¬´û¤ËÀßÄꤵ¤ì¤Æ¤¤¤ë¾ì¹ç¡¤²¿¤â¤·¤Þ¤»¤ó¡¥ variable¤ËÂФ·¤ÆAC_SUBST¤ò¸Æ¤Ó½Ð¤·¤Æ¤¯¤À¤µ¤¤¡¥

Macro: AC_CHECK_PROGS (variable, progs-to-check-for, [value-if-not-found], [path])

¶õÇò¤Ç¶èÀÚ¤é¤ì¤¿¥ê¥¹¥Èprogs-to-check-for¤Î¤½¤ì¤¾¤ì¤Î¥×¥í¥°¥é¥à¤¬ PATH¤Ë¸ºß¤¹¤ë¤«¤É¤¦¤«¤òÄ´ºº¤·¤Þ¤¹¡¥¸«¤Ä¤«¤Ã¤¿¾ì¹ç¡¤ variable¤ò¥×¥í¥°¥é¥à¤Î̾Á°¤ËÀßÄꤷ¤Þ¤¹¡¥¤½¤ì°Ê³°¤Î¾ì¹ç¤Ï°ú³¤­¡¤¥ê ¥¹¥È¤Î¼¡¤Ë¤¢¤ë¥×¥í¥°¥é¥à¤òÄ´ºº¤·¤Þ¤¹¡¥¥ê¥¹¥ÈÆâ¤Î¥×¥í¥°¥é¥à¤¬Á´¤¯¸«¤Ä¤«¤é ¤Ê¤¤¾ì¹ç¡¤ variable ¤òvalue-if-not-found¤ËÀßÄꤷ¤Þ¤¹¡¥ value-if-not-found¤¬»ØÄꤵ¤ì¤Æ¤¤¤Ê¤¤¾ì¹ç¡¤variable¤ÏÊѹ¹¤µ¤ì ¤Þ¤»¤ó¡¥variable¤ËÂФ·¤ÆAC_SUBST¤ò¸Æ¤Ó½Ð¤·¤Æ¤¯¤À¤µ¤¤¡¥

Macro: AC_CHECK_TOOL (variable, prog-to-check-for, [value-if-not-found], [path])

AC_CHECK_PROG¤Ë»÷¤Æ¤¤¤Þ¤¹¤¬¡¤AC_CANONICAL_HOST¤ÇÄêµÁ¤µ¤ì¤Æ ¤¤¤ë¥Û¥¹¥È¥¿¥¤¥×¤Ë¥À¥Ã¥·¥å¤¬Â³¤¤¤Æ¤¤¤ë¥×¥ì¥Õ¥£¥¯¥¹¤ò»ý¤Ä prog-to-check-for¤ò¡¤ºÇ½é¤Ëõ¤·¤Þ¤¹(see Canonicalizing)¡¥Î㤨 ¤Ð¡¤¥æ¡¼¥¶¤¬‘configure --host=i386-gnu’¤ò¼Â¹Ô¤·¤Æ¤¤¤ë¾ì¹ç¡¤°Ê²¼¤Î¤è ¤¦¤Ë¸Æ¤Ó½Ð¤·¤Þ¤¹¡¥

AC_CHECK_TOOL(RANLIB, ranlib, :)

¤³¤ì¤Ç¡¤PATH¤Ëi386-gnu-ranlib¤È¤¤¤¦¥×¥í¥°¥é¥à¤¬Â¸ºß¤¹¤ë¾ì ¹ç¡¤RANLIB¤òi386-gnu-ranlib¤ËÀßÄꤷ¡¤¤½¤ì°Ê³°¤Ç¡¤ PATH¤Ë‘ranlib’¤È¤¤¤¦¥×¥í¥°¥é¥à¤¬¤¢¤ë¾ì¹ç¡¤RANLIB¤ò ‘ranlib’¤ËÀßÄꤷ¡¤¤É¤Á¤é¤â̵¤¤¾ì¹ç¤Ï ‘:’¤ËÀßÄꤷ¤Þ¤¹¡¥

Macro: AC_CHECK_TOOLS (variable, progs-to-check-for, [value-if-not-found], [path])

AC_CHECK_TOOL¤Ë»÷¤Æ¤¤¤Æ¡¤progs-to-check-for¤Ç¥ê¥¹¥È¥¢¥Ã¥×¤µ ¤ì¤Æ¤¤¤ë¤½¤ì¤¾¤ì¤Î¥Ä¡¼¥ë¤Ï¡¤AC_CANONICAL_HOST¤Ç·èÄꤵ¤ì¤¿¥Û¥¹¥È¥¿ ¥¤¥×¤òÁ°ÃÖ¤·¡¤¤½¤ì¤Ë¥À¥Ã¥·¥å¤ò³¤±¤¿¤â¤Î¤òÍѤ¤¤ÆÄ´ºº¤µ¤ì¤Þ¤¹ (see Canonicalizing)¡¥¥×¥ì¥Õ¥£¥¯¥¹¤òÍѤ¤¤Æ¤¤¤ë¥Ä¡¼¥ë¤¬¸«¤Ä¤«¤é¤Ê¤¤¾ì ¹ç¡¤ºÇ½é¤Ë¥×¥ì¥Õ¥£¥¯¥¹Ìµ¤·¤Î¤â¤Î¤¬»ÈÍѤµ¤ì¤Þ¤¹¡¥¥Ä¡¼¥ë¤¬¸«¤Ä¤«¤Ã¤¿¾ì¹ç¡¤ variable¤ò¤½¤Î¥×¥í¥°¥é¥à̾¤ËÀßÄꤷ¤Þ¤¹¡¥¥ê¥¹¥È¤Î¥Ä¡¼¥ë¤¬Á´¤¯¸«¤Ä¤« ¤é¤Ê¤¤¾ì¹ç¡¤variable¤òvalue-if-not-found¤ËÀßÄꤷ¤Þ¤¹¡¥ value-if-not-found¤¬»ØÄꤵ¤ì¤Æ¤¤¤Ê¤¤¾ì¹ç¡¤variable¤ÎÃͤÏÊѹ¹ ¤µ¤ì¤Þ¤»¤ó¡¥variable¤ËÂФ·¤ÆAC_SUBST¤ò¸Æ¤Ó½Ð¤·¤Æ¤¯¤À¤µ¤¤¡¥

Macro: AC_PATH_PROG (variable, prog-to-check-for, [value-if-not-found], [path])

AC_CHECK_PROG¤Ë»÷¤Æ¤¤¤Þ¤¹¤¬¡¤¸«¤Ä¤«¤Ã¤¿¾ì¹ç¡¤variable¤ò prog-to-check-for¤Î´°Á´¤Ê¥Ñ¥¹¤ËÀßÄꤷ¤Þ¤¹¡¥

Macro: AC_PATH_PROGS (variable, progs-to-check-for, [value-if-not-found], [path])

AC_CHECK_PROGS¤Ë»÷¤Æ¤¤¤Þ¤¹¤¬¡¤progs-to-check-for¤Î¤É¤ì¤«¤¬ ¸«¤Ä¤«¤Ã¤¿¾ì¹ç¡¤variable¤ò¥×¥í¥°¥é¥à¤¬¸«¤Ä¤«¤Ã¤¿´°Á´¤Ê¥Ñ¥¹¤ËÀßÄꤷ ¤Þ¤¹¡¥

Macro: AC_PATH_TOOL (variable, prog-to-check-for, [value-if-not-found], [path])

AC_CHECK_TOOL¤Ë»÷¤Æ¤¤¤Þ¤¹¤¬¡¤¸«¤Ä¤«¤Ã¤¿¾ì¹ç¡¤variable¤ò¥×¥í ¥°¥é¥à¤¬¸«¤Ä¤«¤Ã¤¿´°Á´¤Ê¥Ñ¥¹¤ËÀßÄꤷ¤Þ¤¹¡¥