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AC_DEFINE
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See Cache Variable Names.
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AC_HAVE_FUNCS(syslog) case "$DEFS" in *-DHAVE_SYSLOG*) ;; *) # syslog is not in the default libraries. See if it's in some other. saved_LIBS="$LIBS" for lib in bsd socket inet; do AC_CHECKING(for syslog in -l$lib) LIBS="$saved_LIBS -l$lib" AC_HAVE_FUNCS(syslog) case "$DEFS" in *-DHAVE_SYSLOG*) break ;; *) ;; esac LIBS="$saved_LIBS" done ;; esac
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AC_CHECK_FUNCS(syslog) if test $ac_cv_func_syslog = no; then # syslog is not in the default libraries. See if it's in some other. for lib in bsd socket inet; do AC_CHECK_LIB($lib, syslog, [AC_DEFINE(HAVE_SYSLOG) LIBS="$LIBS -l$lib"; break]) done fi
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(¥Ð¥Ã¥¯¥¹¥é¥Ã¥·¥å°Ê³°¤Î)°úÍÑÉä¤òÆÃḚ̂·¤¤¤·¤Þ¤»¤ó¡¥See Setting Output Variables.
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