configure.ac

AC_PREREQ([2.71])
AC_INIT([check_interfaces],[1.4.1])
AC_PREFIX_DEFAULT(/usr/local/nagios)
AC_PROG_CC()
AC_PROG_INSTALL()

AM_INIT_AUTOMAKE([1.16.5])

AM_SILENT_RULES([yes])


if test "$cross_compiling" != "yes";
then
    dnl look for net-snmp-config
    AC_PATH_PROG(NETSNMPCONFIG, net-snmp-config)

    if test "$ac_cv_path_netsnmpconfig" == "no";
    then
        AC_MSG_WARN([could not find net-snmp-config - did you install the development package for net-snmp?  ])
    else
        SNMP_CFLAGS=`$NETSNMPCONFIG --cflags`
        SNMP_LIBS=`$NETSNMPCONFIG --libs`
        CFLAGS="$CFLAGS $SNMP_CFLAGS"
    fi
fi

AC_ARG_WITH(snmp-headers,
   AS_HELP_STRING([--with-snmp-headers=DIR], [Net-SNMP Include files location]),
   [SNMP_HDR_DIR="$withval"]
   [CPPFLAGS="$CPPFLAGS -I$withval"])

dnl if specified override SNMP_LIBS
AC_ARG_WITH(snmp-libs,
  AS_HELP_STRING([--with-snmp-libs=DIR], [Net-SNMP Shared Library files location]),
  [SNMP_LIBS="-lnetsnmp"]
  [CFLAGS="$CFLAGS -L$withval"])


AC_CHECK_HEADERS([net-snmp/net-snmp-config.h])

AC_CHECK_LIB(netsnmp, snmp_open)

if test "$ac_cv_header_net_snmp_net_snmp_config_h" != "yes";
then
    AC_MSG_ERROR([Net-SNMP Headers Missing])
fi

if test "$ac_cv_lib_netsnmp_snmp_open" != "yes";
then
    AC_MSG_ERROR([Net-SNMP library unusable - either it is missing or there are unfulfilled dependencies (e.g. libcrypto)])
fi


dnl look for the pow() function
AC_SEARCH_LIBS(pow, [c m], AC_DEFINE([HAVE_POW]))

dnl look for the getaddrinfo() function
AC_SEARCH_LIBS(getaddrinfo, [c], AC_DEFINE([HAVE_GETADDRINFO]))

AC_CHECK_FUNCS([clock_gettime])
AC_CHECK_FUNCS([gettimeofday])
AC_CHECK_FUNCS([memset])
AC_CHECK_FUNCS([pow])
AC_CHECK_FUNCS([regcomp])
AC_CHECK_FUNCS([setenv])
AC_CHECK_FUNCS([strchr])
AC_CHECK_FUNCS([strrchr])
AC_CHECK_FUNCS([strstr])
AC_CHECK_FUNCS([strtol])
AC_CHECK_FUNCS([strtoull])
AC_CHECK_HEADERS([netdb.h])
AC_CHECK_HEADERS([sys/socket.h])
AC_CHECK_HEADERS([sys/time.h])
AC_CHECK_HEADERS([unistd.h])
AC_CHECK_HEADER_STDBOOL
AC_CHECK_TYPES([ptrdiff_t])
AC_FUNC_MALLOC
AC_TYPE_SIZE_T


AC_SUBST([SNMP_LIBS])


dnl Check whether DES encryption is available (might not on RHEL)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <net-snmp/net-snmp-config.h>
				#include <net-snmp/net-snmp-includes.h>]], [[oid *foo = usmDESPrivProtocol;]])],[AC_DEFINE(HAVE_USM_DES_PRIV_PROTOCOL,1,Define whether we have DES Privacy Protocol)],[])

AC_CONFIG_FILES([Makefile])



AC_OUTPUT