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AC_SUBST(CARES_OBJ)
AC_SUBST(CARES_LIBS)
AC_SUBST(CARES_CFLAGS)
AC_CHECK_HEADERS(ares.h,
[AC_CHECK_LIB([cares], [ares_init], [ CARES_LIBS="-lcares" ], [AC_MSG_ERROR([No usable c-ares library found])])],
[AC_MSG_ERROR([c-ares header files are not installed])]
)
dnl Check if this particular version of c-ares supports the generic ares_free_data function
AC_CHECK_LIB([cares],
[ares_free_data],
[AC_DEFINE([HAVE_ARES_DATA], 1, [Does c-ares have ares_free_data()?])
],
[
ares_data=1
]
)
AM_CONDITIONAL(BUILD_ARES_DATA, test x$ares_data = x1)
dnl Check if this particular version of c-ares support the new TTL structures
AC_CHECK_TYPES([struct ares_addrttl, struct ares_addr6ttl], [], [], [#include <ares.h>])
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