dnl Process this file with autoconf to produce a configure script.

AC_RELEASE("$Id: configure.in,v 1.1 2008/02/15 01:47:15 marka Exp $")

AC_INIT(query-loc.c)

dnl Checks for programs.

AC_PROG_CC

if test "$GCC" = "yes"; then

CFLAGS="${CFLAGS} -Wall"

fi

AC_PROG_INSTALL

dnl Checks for libraries.

AC_CHECK_LIB(resolv, res_query)

dnl Checks for header files.

AC_HEADER_STDC

AC_CONFIG_HEADER(config.h)

AC_CHECK_HEADER(resolv.h, , AC_MSG_ERROR("No headers for name service applications"))

AC_CHECK_HEADER(arpa/nameser.h, , AC_MSG_ERROR("No headers for name service applications"))

AC_CHECK_HEADER(sys/time.h, , AC_MSG_ERROR("Mandatory header missing on your system"))

AC_CHECK_HEADER(unistd.h, , AC_MSG_ERROR("Mandatory header missing on your system"))

dnl This one is only useful for Solaris?

AC_MSG_CHECKING(if libnsl is mandatory)

AC_TRY_LINK([#include <sys/types.h>

#include <netinet/in.h>

#include <arpa/nameser.h>

#include <resolv.h>

union

{

HEADER hdr;

u_char buf[4096]; /* With RFC 2671, otherwise 512 is enough */

}

response;

char *domain;

int requested_type; ],

[res_query(domain,

C_IN,

requested_type,

(u_char *) & response,

sizeof (response)) ], dnl

[AC_MSG_RESULT(no)], dnl

[AC_MSG_RESULT(yes); LIBS="${LIBS} -lnsl"])

dnl Check for the loc_ntoa macro/function

AC_MSG_CHECKING(loc_ntoa)

AC_TRY_LINK([#include <resolv.h>], dnl

[u_char *cp; char *result; loc_ntoa(cp, result)], dnl

[AC_MSG_RESULT(yes); AC_DEFINE(HAVE_LOC_NTOA)], dnl

[AC_MSG_RESULT([no, using the alternative]); LOC_NTOA=loc_ntoa.o])

AC_SUBST(LOC_NTOA)

dnl Checks for typedefs, structures, and compiler characteristics.

AC_C_CONST

AC_CHECK_SIZEOF(long)

AC_CHECK_SIZEOF(int)

AC_CHECK_SIZEOF(short)

AC_CHECK_SIZEOF(char)

dnl Misc.

AC_OUTPUT(Makefile)