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15.6.2 ¿·¤·¤¤¥Þ¥¯¥í

Autoconf¤Ï²¿Ç¯¤âµÙ»ßÃæ¤À¤Ã¤¿¤Î¤Ç¡¤¤½¤Î´ÖAutomake¤¬Autoconf¤Î¤è¤¦¤Ê¥Þ¥¯¥í ¤òÄ󶡤·¤Æ¤¤¤Þ¤·¤¿¡¥¸½ºß¤Ï¡¤Autoconf 2.50¤¬¤³¤ì¤é¤Î¥Þ¥¯¥í¤Î¤è¤êÎɤ¤¥Ð¡¼ ¥¸¥ç¥ó¤òÄ󶡤·¤Æ¤¤¤Æ¡¤AM_¤Ç¤Ï¤Ê¤¯AC_¤Î̾Á°¶õ´Ö¤ÇÅý¹ç¤µ¤ì¤Æ ¤¤¤Þ¤¹¡¥¤·¤«¤·¡¤autoupdate¤ÇÍÆ°×¤Ë¹¹¿·¤Ç¤­¤ë¤è¤¦¤Ë¡¤¤½¤Î¤è¤¦¤Ê AM_¥Þ¥¯¥í¤â·ë¹ç¤µ¤ì¤ÆÄ󶡤µ¤ì¤Æ¤¤¤Þ¤¹¡¥

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¹¬¤¤¡¤Autoconf¤ÏÁ°ÃÖ¤µ¤ì¤ëAC_INIT¤ÎŸ³«¤ò¼õ¤±¤Æ¡¤¤½¤ì¤¬½êÍ­¤¹¤ëñ ¸ì¤Çʸ¶ç¤ò¤¤¤¤¤Þ¤¹¡¥

$ cat configure.in
AC_INIT
AM_TYPE_PTRDIFF_T
$ aclocal-1.4
$ autoconf
./aclocal.m4:17: error: m4_defn: undefined macro: _m4_divert_diversion
actypes.m4:289: AM_TYPE_PTRDIFF_T is expanded from...
./aclocal.m4:17: the top level
$

¾­Íè¤ÎAutomake¤Î¥Ð¡¼¥¸¥ç¥ó¤Ï¡¤Ã±½ã¤Ë¤³¤ì¤é¤Î¥Þ¥¯¥í¤ò¤³¤ì°Ê¾åÄêµÁ¤»¤º¡¤¤ª ¤½¤é¤¯»Ä¤ê¤Î¥Þ¥¯¥í̾¤ò°úÍÑÉä¤Ç°Ï¤à¤Ç¤·¤ç¤¦¡¥¤·¤«¤·¡¤Á´¤Æ¤¬¤¦¤Þ¤¯¤¤¤¯¤Þ¤Ç ¤¸¤Ã¤ÈÂԤäƤ¤¤ëɬÍפϤ¢¤ê¤Þ¤»¤ó¡¥(ñÆÈ¤ÇÍ׵ᤵ¤ì¤ë¤â¤Î¤â¤¢¤ê¤Þ¤¹¤¬)¥Þ¥¯ ¥í¤òÄ󶡤¹¤ë¤¿¤á¤Î»Å»ö¤Ïñ½ã¤Ç¤Ï¤Ê¤¤¤Î¤Ç¡¤Automake¤Î¥Þ¥¯¥í¤Ë°Í¸¤·¤Ê¤¤¤Ç ¤¯¤À¤µ¤¤¡¥

$ cat configure.in
AC_INIT
AM_TYPE_PTRDIFF_T
$ rm aclocal.m4
$ autoupdate
autoupdate: `configure.in' is updated
$ cat configure.in
AC_INIT
AC_CHECK_TYPES([ptrdiff_t])
$ aclocal-1.4
$ autoconf
$