Next: , Up: Results   [Contents][Index]


7.1 C¥×¥ê¥×¥í¥»¥Ã¥µ¥·¥ó¥Ü¥ë¤ÎÄêµÁ

ÆÃħ¥Æ¥¹¥È¤«¤é¤Î±þÅú¤ò¼õ¤±¤È¤ëÄ̾ï¤Îưºî¤Ï¡¤¥Æ¥¹¥È¤Î·ë²Ì¤ò¼¨¤¹C¥×¥ê¥×¥í ¥»¥Ã¥µ¥·¥ó¥Ü¥ë¤òÄêµÁ¤¹¤ë¤³¤È¤Ç¤¹¡¥¤½¤ì¤ÏAC_DEFINE¤ä AC_DEFINE_UNQUOTED¤È¸Æ¤Ð¤ì¤ë¤â¤Î¤Ç¹Ô¤¤¤Þ¤¹¡¥

¥Ç¥Õ¥©¥ë¥È¤Ç¡¤AC_OUTPUT¤Ï¥Þ¥¯¥í¤¬ÄêµÁ¤·¤¿¥·¥ó¥Ü¥ë¤ò¡¤½ÐÎÏÊÑ¿ô DEFS¤ËÇÛÃÖ¤·¡¤¤½¤ì¤Ï¤½¤ì¤¾¤ì¤Î¥·¥ó¥Ü¥ë¤ËÂФ¹¤ë -Dsymbol=value¤ò´Þ¤ó¤Ç¤¤¤Þ¤¹¡¥Autoconf¥Ð¡¼¥¸¥ç¥ó1 ¤È°Û¤Ê¤ê¡¤configure¤¬¼Â¹ÔÃæ¤ËÄêµÁ¤¹¤ëÊÑ¿ôDEFS¤Ï¤¢¤ê¤Þ¤» ¤ó¡¥Autoconf¥Þ¥¯¥í¤¬¡¤¤¢¤ëC¥×¥ê¥×¥í¥»¥Ã¥µ¥·¥ó¥Ü¥ë¤ò´û¤ËÄêµÁ¤·¤Æ¤¤¤ë¤«¤É ¤¦¤«Ä´ºº¤¹¤ë¤¿¤á¡¤°Ê²¼¤ÎÎã¤Î¤è¤¦¤Ë¡¤Å¬Àڤʥ­¥ã¥Ã¥·¥åÊÑ¿ô¤ÎÃͤò¥Æ¥¹¥È¤·¤Æ ¤¯¤À¤µ¤¤¡¥

AC_CHECK_FUNC(vprintf, [AC_DEFINE(HAVE_VPRINTF)])
if test "$ac_cv_func_vprintf" != yes; then
  AC_CHECK_FUNC(_doprnt, [AC_DEFINE(HAVE_DOPRNT)])
fi

AC_CONFIG_HEADERS¤¬¸Æ¤Ó½Ð¤µ¤ì¤¿¾ì¹ç¡¤DEFS¤òºîÀ®¤¹¤ëÂå¤ï¤ê ¤Ë¡¤AC_OUTPUT¤Ç¥Æ¥ó¥×¥ì¡¼¥È¥Õ¥¡¥¤¥ë¤Ë#defineʸ¤ÇÀµ¤·¤¤Ãͤò ÂåÆþ¤·¤¿¥Ø¥Ã¥À¥Õ¥¡¥¤¥ë¤òºîÀ®¤·¤Þ¤¹¡¥¤³¤Î¼ïÎà¤Î½ÐÎϤξܺ٤ϡ¤ See Configuration Headers.

Macro: AC_DEFINE (variable, value, [description])
Macro: AC_DEFINE (variable)

C¥×¥ê¥×¥í¥»¥Ã¥µÊÑ¿ôvariable¤òvalue¤Ë(¤½¤Î¤Þ¤Þ)ÄêµÁ¤·¤Þ¤¹¡¥ value¤Ï²þ¹Ô¤Î¥ê¥Æ¥é¥ë¤ò´Þ¤à¤Ù¤­¤Ç¤Ï¤Ê¤¯¡¤ AC_CONFIG_HEADERS ¤ò»ÈÍѤ·¤Ê¤¤¾ì¹ç¡¤make¤¬½èÍý¤·¤Æ¤·¤Þ¤¦¤Î¤Ç¡¤‘#’ʸ»ú¤ò´Þ¤á ¤ë¤Ù¤­¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¡¥¥·¥§¥ëÊÑ¿ô(M4¤Î°úÍÑÉäʸ»ú‘[’¤ä‘]’¤ò´Þ¤à ÄêµÁÃͤ¬É¬Íפʤâ¤Î)¤ò»ÈÍѤ¹¤ë¤¿¤á¤Ë¡¤Âå¤ï¤ê¤ËAC_DEFINE_UNQUOTED¤ò »ÈÍѤ·¤Æ¤¯¤À¤µ¤¤¡¥description¤Ï¡¤ AC_CONFIG_HEADER¤ò»ÈÍѤ¹ ¤ë¾ì¹ç¤À¤±Ìò¤ËΩ¤Á¤Þ¤¹¡¥¤³¤Î¾ì¹ç¡¤ description¤Ï¡¤À¸À®¤µ¤ì¤¿ config.h.in¤Ë¡¤¥Þ¥¯¥íÄêµÁÁ°¤Î¥³¥á¥ó¥È¤È¤·¤Æ½ñ¤­¹þ¤Þ¤ì¤Þ¤¹¡¥°Ê²¼¤Î Îã¤Ï¡¤C¥×¥ê¥×¥í¥»¥Ã¥µÊÑ¿ôEQUATION ¤òʸ»úÄê¿ô‘"$a > $b"’¤ÈÄê µÁ¤·¤Þ¤¹¡¥

AC_DEFINE(EQUATION, "$a > $b")

value¤âdescription¤âÍ¿¤¨¤é¤ì¤Æ¤¤¤Ê¤¤¾ì¹ç¡¤value¤Î¥Ç¥Õ¥© ¥ë¥È¤Ï¶õ¤Îʸ»úÎó¤Ç¤Ï¤Ê¤¯1¤Ë¤Ê¤ê¤Þ¤¹¡¥¤³¤ì¤Ï¸Å¤¤¥Ð¡¼¥¸¥ç¥ó¤ÎAutoconf¤Î²¼ °Ì¸ß´¹À­¤Î¤¿¤á¤Ç¤¹¤¬¡¤¤³¤Î»ÈÍÑÊýË¡¤Ï»þÂåÃÙ¤ì¤Ç¡¤Autoconf¤Î¾­Íè¤Î¥Ð¡¼¥¸¥ç ¥ó¤Ç¤Ï̵¤¯¤Ê¤ë¤«¤â¤·¤ì¤Þ¤»¤ó¡¥

Macro: AC_DEFINE_UNQUOTED (variable, value, [description])
Macro: AC_DEFINE_UNQUOTED (variable)

AC_DEFINE¤Ë»÷¤Æ¤¤¤Þ¤¹¤¬¡¤variable¤Èvalue¤Ç¡¤»°¤Ä¤Î¥·¥§ ¥ëŸ³«¤¬ — °ìÅÙ¤Ë — ¼Â¹Ô¤µ¤ì¤Þ¤¹¡¥ÊÑ¿ô¤ÎŸ³«(‘$’)¡¤¥³¥Þ¥ó¥É¤ÎÃÖ ´¹(‘`’)¡¤¤½¤·¤Æ¥Ð¥Ã¥¯¥¹¥é¥Ã¥·¥å¥¨¥¹¥±¡¼¥×(‘\’)¤Ç¤¹¡¥ÃͤÎÃæ¤Î¥· ¥ó¥°¥ë¥¯¥ª¡¼¥È¤È¥À¥Ö¥ë¥¯¥ª¡¼¥È¤Îʸ»úÎ󡤯ÃÊ̤ʰÕÌ£¤ò»ý¤Á¤Þ¤»¤ó¡¥ variable¤ä value¤¬¥·¥§¥ëÊÑ¿ô¤Î¤È¤­¤Ï¡¤AC_DEFINE¤ÎÂå¤ï ¤ê¤Ë¤³¤Î¥Þ¥¯¥í¤ò»ÈÍѤ·¤Æ¤¯¤À¤µ¤¤¡¥°Ê²¼¤¬¤½¤ÎÎã¤Ç¤¹¡¥

AC_DEFINE_UNQUOTED(config_machfile, "$machfile")
AC_DEFINE_UNQUOTED(GETGROUPS_T, $ac_cv_type_getgroups)
AC_DEFINE_UNQUOTED($ac_tr_hdr)

Bourne¥·¥§¥ë¤Î¹½Ê¸¤ÎÆÃ°ÛÀ­¤Î¤¿¤á¡¤Â¾¤Î¥Þ¥¯¥í¤«¤é¸Æ¤Ó½Ð¤·¤ä¥·¥§¥ë¥³¡¼¥É¤È AC_DEFINE¤äAC_DEFINE_UNQUOTED¤òʬ¤±¤ë¤¿¤á¤Ë¡¤¥»¥ß¥³¥í¥ó¤ò »ÈÍѤ·¤Ê¤¤¤Ç¤¯¤À¤µ¤¤¡¥¤½¤¦¤¹¤ë¤È¡¤configure¥¹¥¯¥ê¥×¥È¤Î·ë²Ì¤È ¤·¤Æ¹½Ê¸¥¨¥é¡¼¤Î¸¶°ø¤È¤Ê¤ê¤Þ¤¹¡¥°Ê²¼¤Î¤è¤¦¤Ë¤·¤Þ¤¹¡¥

AC_CHECK_HEADER(elf.h, [AC_DEFINE(SVR4) LIBS="$LIBS -lelf"])

¤¢¤ë¤¤¤Ï°Ê²¼¤Î¤è¤¦¤Ë¤·¤Þ¤¹¡¥

AC_CHECK_HEADER(elf.h,
 [AC_DEFINE(SVR4)
  LIBS="$LIBS -lelf"])

¤½¤ì¤é¤Ï°Ê²¼¤ÎÂå¤ï¤ê¤Î¤â¤Î¤Ç¤¹¡¥

AC_CHECK_HEADER(elf.h, [AC_DEFINE(SVR4); LIBS="$LIBS -lelf"])