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Re: [bugreport] resolv.h test fails (was: Re: minires-devel-0.97-1: reso
Gerrit P. Haase
Re: [bugreport] resolv.h test fails (was: Re: minires-devel-0.97-1: resolv.h fails)
Mon, 25 Oct 2004 13:46:43 +0200
> Pierre A. Humblet wrote:
>> At 01:03 PM 10/18/2004 +0200, Corinna Vinschen wrote:
>>>On Oct 18 03:28, Reini Urban wrote:
>>>> #include <resolv.h> fails suddenly.
>>>>Apparently /usr/include/resolv.h misses the definition for
>>>>sockaddr_in, which is defined in <cygwin/in.h>
>>>>Have no clue why it suddenly fails. Anyone else?
>>>>These headers didn't change for years...
>>>>Which file is supposed to include cygwin/in.h? I found nothing.
>> Its an upstream issue. According to the resolver man page,
>> netinet/in.h should be included before resolv.h.
>> For example
>> #include <sys/types.h>
>> #include <netinet/in.h>
>> #include <arpa/nameser.h>
>> #include <resolv.h>
> I think this is correct. What is buggy is the autoconf test which is
> just including resolv.h and not netinet/in.h to compile the test exe.
This applies to the default test when calling
Workaround is to use s.th. like this in configure.ac:
AC_CHECK_HEADERS([arpa/nameser.h netinet/in.h sys/socket.h sys/types.h])
AC_CHECK_HEADERS([resolv.h], , ,
# include <sys/types.h>
# include <netinet/in.h> /* inet_ functions / structs */
# include <arpa/nameser.h> /* DNS HEADER struct */
# include <sys/socket.h> /* DNS HEADER struct */
Anyway, there should be a macro which provides this functionity.