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#
# lldp_CHECK_SNMP
#
AC_DEFUN([lldp_CHECK_SNMP], [
if test x"$with_snmp" != x"no"; then
AC_PATH_TOOL([NETSNMP_CONFIG], [net-snmp-config], [no])
if test x"$NETSNMP_CONFIG" = x"no"; then
dnl No luck
if test x"$with_snmp" = x"yes"; then
AC_MSG_FAILURE([*** no NetSNMP support found])
fi
with_snmp=no
else
dnl Check it is working as expected
NETSNMP_LIBS=`${NETSNMP_CONFIG} --agent-libs`
NETSNMP_CFLAGS="`${NETSNMP_CONFIG} --base-cflags` -DNETSNMP_NO_INLINE"
_save_flags="$CFLAGS"
_save_libs="$LIBS"
CFLAGS="$CFLAGS ${NETSNMP_CFLAGS}"
LIBS="$LIBS ${NETSNMP_LIBS}"
AC_MSG_CHECKING([whether C compiler supports flag "${NETSNMP_CFLAGS} ${NETSNMP_LIBS}" from Net-SNMP])
AC_LINK_IFELSE([AC_LANG_PROGRAM([
int main(void);
],
[
{
return 0;
}
])],[
AC_MSG_RESULT(yes)
dnl Is Net-SNMP usable?
AC_CHECK_LIB([netsnmp], [snmp_register_callback], [
dnl Do we have subagent support?
AC_CHECK_FUNCS([netsnmp_enable_subagent], [
dnl Yes, we need to check a few more things
AC_SUBST([NETSNMP_LIBS])
AC_SUBST([NETSNMP_CFLAGS])
AC_DEFINE_UNQUOTED([USE_SNMP], 1, [Define to indicate to enable SNMP support])
with_snmp=yes
dnl Should we use f_create_from_tstring_new or f_create_from_tstring?
AC_CHECK_MEMBERS([netsnmp_tdomain.f_create_from_tstring_new],,,[
@%:@include <net-snmp/net-snmp-config.h>
@%:@include <net-snmp/net-snmp-includes.h>
@%:@include <net-snmp/library/snmp_transport.h>
])
dnl Do we have a usable <net-snmp/agent/util_funcs.h> header?
AC_CHECK_HEADERS([net-snmp/agent/util_funcs.h],,,[
@%:@include <net-snmp/net-snmp-config.h>
@%:@include <net-snmp/net-snmp-includes.h>
@%:@include <net-snmp/library/snmp_transport.h>
@%:@include <net-snmp/agent/net-snmp-agent-includes.h>
@%:@include <net-snmp/agent/snmp_vars.h>
])
dnl Can we use snmp_select_info2?
AC_CHECK_FUNCS([snmp_select_info2])
],[
if test x"$with_snmp" = x"yes"; then
AC_MSG_ERROR([*** no subagent support in net-snmp])
fi
with_snmp=no
])
],[
if test x"$with_snmp" = x"yes"; then
AC_MSG_ERROR([*** unable to use net-snmp])
fi
with_snmp=no
])
],[
AC_MSG_RESULT(no)
if test x"$with_snmp" = x"yes"; then
AC_MSG_ERROR([*** incorrect CFLAGS from net-snmp-config])
fi
with_snmp=no
])
CFLAGS="$_save_flags"
LIBS="$_save_libs"
fi
fi
])
|
