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4.7 Makefile¤Ø¤ÎÂåÆþ

¥³¥ó¥Ñ¥¤¥ë¤µ¤ì¤¿¤ê¥¤¥ó¥¹¥È¡¼¥ë¤µ¤ì¤¿¤ê¤¹¤ë¤â¤Î¤ò´Þ¤ó¤Ç¤¤¤ë¡¤ÇÛÉÛʪ¤Î¤½¤ì ¤¾¤ì¤Î¥µ¥Ö¥Ç¥£¥ì¥¯¥È¥ê¤Ë¤Ï¡¤configure¤¬¤½¤Î¥Ç¥£¥ì¥¯¥È¥ê¤Ë Makefile¤òºîÀ®¤¹¤ë¤¿¤á¤Î¥Õ¥¡¥¤¥ëMakefile.in¤òÇÛÃÖ¤¹¤Ù¤­¤Ç ¤¹¡¥Makefile¤òºîÀ®¤¹¤ë¤¿¤á¤Ë¡¤Makefile.in¤Î ‘@variable@’¤òconfigure¤¬·èÄꤷ¤¿¤½¤ÎÊÑ¿ô¤ÎÃͤËÃÖ ´¹¤·¤Ê¤¬¤é¡¤configure¤Ïñ½ã¤ÊÊÑ¿ô¤ÎÂåÆþ¤ò¹Ô¤¤¤Þ¤¹¡¥¤³¤Î¤è¤¦¤Ë ¤·¤Æ½ÐÎÏ¥Õ¥¡¥¤¥ë¤ËÂåÆþ¤µ¤ì¤ëÊÑ¿ô¤Ï¡¤½ÐÎÏÊÑ¿ô(output variable)¤È¸Æ ¤Ð¤ì¤Þ¤¹¡¥¤½¤ì¤é¤Ïconfigure¤ÇÀßÄꤵ¤ì¤ëÉáÄ̤Υ·¥§¥ëÊÑ¿ô¤Ç¤¹¡¥ configure¤¬ÆÃÄê¤ÎÊÑ¿ô¤ò½ÐÎÏ¥Õ¥¡¥¤¥ë¤ËÂåÆþ¤¹¤ë¤è¤¦¤Ë¡¤ÊÑ¿ô̾¤ò °ú¿ô¤È¤·¤ÆAC_SUBST¥Þ¥¯¥í¤ò¸Æ¤Ó½Ð¤¹É¬Íפ¬¤¢¤ê¤Þ¤¹¡¥Â¾¤ÎÊÑ¿ô¤ËÂФ¹ ¤ë‘@variable@’¤¬ÊѲ½¤¹¤ë¤³¤È¤Ï¤¢¤ê¤Þ¤»¤ó¡¥AC_SUBST¤ò ÍѤ¤¤¿½ÐÎÏÊÑ¿ô¤ÎºîÀ®ÊýË¡¤Î¾ÜºÙ¤Ï¡¤See Setting Output Variables.

configure¥¹¥¯¥ê¥×¥È¤ò»ÈÍѤ·¤Æ¤¤¤ë¥½¥Õ¥È¥¦¥§¥¢¥Ñ¥Ã¥±¡¼¥¸¤Ï¡¤¥Õ¥¡ ¥¤¥ëMakefile.in¤È°ì½ï¤ËÇÛÉÛ¤¹¤Ù¤­¤Ç¤¹¤¬¡¤Makefile¤ÏÇÛÉÛ¤¹ ¤Ù¤­¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¡¥¤Ä¤Þ¤ê¡¤¥æ¡¼¥¶¤Ï¥³¥ó¥Ñ¥¤¥ë¤¹¤ëÁ°¤Ë¥í¡¼¥«¥ë¥·¥¹¥Æ¥à¤Ë ÂФ·¤Æ¡¤Àµ¤·¤¯¥Ñ¥Ã¥±¡¼¥¸¤ò¥³¥ó¥Õ¥£¥°¥ì¡¼¥·¥ç¥ó¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡¥

Makefile¤Ë½ñ¤¯¤â¤Î¤Î¾ÜºÙ¤ÏSee Makefile Conventions in The GNU Coding Standards.