From 3e25e2167beb3936de3986fad9b6c9bdec82b81f Mon Sep 17 00:00:00 2001
From: Eric S. Raymond <esr@thyrsus.com>
Date: Fri, 02 Oct 2015 00:37:28 +0000
Subject: Address  Savannah bug #46082 - Can't explicitly build with NMEA drivers.

Upstream: http://git.savannah.gnu.org/cgit/gpsd.git/patch/?id=3e25e2167beb3936de3986fad9b6c9bdec82b81f

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
diff --git a/driver_evermore.c b/driver_evermore.c
index ba10611..be040e8 100644
--- a/driver_evermore.c
+++ b/driver_evermore.c
@@ -385,12 +385,12 @@ static gps_mask_t evermore_parse_input(struct gps_device_t *session)
 			    session->lexer.outbuflen);
 	return st;
     }
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     else if (session->lexer.type == NMEA_PACKET) {
 	st = nmea_parse((char *)session->lexer.outbuffer, session);
 	return st;
     }
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
     else
 	return 0;
 }
diff --git a/driver_italk.c b/driver_italk.c
index c24c034..7bd47d1 100644
--- a/driver_italk.c
+++ b/driver_italk.c
@@ -384,10 +384,10 @@ static gps_mask_t italk_parse_input(struct gps_device_t *session)
     if (session->lexer.type == ITALK_PACKET) {
 	return italk_parse(session, session->lexer.outbuffer,
 			   session->lexer.outbuflen);;
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     } else if (session->lexer.type == NMEA_PACKET) {
 	return nmea_parse((char *)session->lexer.outbuffer, session);
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
     } else
 	return 0;
 }
diff --git a/driver_navcom.c b/driver_navcom.c
index e34a8b8..081cee1 100644
--- a/driver_navcom.c
+++ b/driver_navcom.c
@@ -1150,10 +1150,10 @@ static gps_mask_t navcom_parse_input(struct gps_device_t *session)
     if (session->lexer.type == NAVCOM_PACKET) {
 	return navcom_parse(session, session->lexer.outbuffer,
 			  session->lexer.outbuflen);
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     } else if (session->lexer.type == NMEA_PACKET) {
 	return nmea_parse((char *)session->lexer.outbuffer, session);;
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
     } else
 	return 0;
 }
diff --git a/driver_nmea0183.c b/driver_nmea0183.c
index 996ddfc..61aaa04 100644
--- a/driver_nmea0183.c
+++ b/driver_nmea0183.c
@@ -13,7 +13,7 @@
 #include "gpsd.h"
 #include "strfuncs.h"
 
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
 /**************************************************************************
  *
  * Parser helpers begin here
@@ -1587,7 +1587,7 @@ gps_mask_t nmea_parse(char *sentence, struct gps_device_t * session)
     return retval;
 }
 
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 
 void nmea_add_checksum(char *sentence)
 /* add NMEA checksum to a possibly  *-terminated sentence */
diff --git a/driver_oncore.c b/driver_oncore.c
index a023529..f4338b7 100644
--- a/driver_oncore.c
+++ b/driver_oncore.c
@@ -468,10 +468,10 @@ static gps_mask_t oncore_parse_input(struct gps_device_t *session)
     if (session->lexer.type == ONCORE_PACKET) {
 	return oncore_dispatch(session, session->lexer.outbuffer,
 			     session->lexer.outbuflen);
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     } else if (session->lexer.type == NMEA_PACKET) {
 	return nmea_parse((char *)session->lexer.outbuffer, session);
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
     } else
 	return 0;
 }
diff --git a/driver_proto.c b/driver_proto.c
index d6c61c8..f42cfcc 100644
--- a/driver_proto.c
+++ b/driver_proto.c
@@ -420,10 +420,10 @@ static gps_mask_t _proto__parse_input(struct gps_device_t *session)
 {
     if (session->lexer.type == _PROTO__PACKET) {
 	return _proto__dispatch(session, session->lexer.outbuffer, session->lexer.outbuflen);
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     } else if (session->lexer.type == NMEA_PACKET) {
 	return nmea_parse((char *)session->lexer.outbuffer, session);
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
     } else
 	return 0;
 }
diff --git a/driver_sirf.c b/driver_sirf.c
index e3699c8..945f6c1 100644
--- a/driver_sirf.c
+++ b/driver_sirf.c
@@ -1367,10 +1367,10 @@ static gps_mask_t sirfbin_parse_input(struct gps_device_t *session)
     if (session->lexer.type == SIRF_PACKET) {
 	return sirf_parse(session, session->lexer.outbuffer,
 			session->lexer.outbuflen);
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     } else if (session->lexer.type == NMEA_PACKET) {
 	return nmea_parse((char *)session->lexer.outbuffer, session);
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
     } else
 	return 0;
 }
diff --git a/driver_superstar2.c b/driver_superstar2.c
index 6e197d3..bd4aab1 100644
--- a/driver_superstar2.c
+++ b/driver_superstar2.c
@@ -468,10 +468,10 @@ static gps_mask_t superstar2_parse_input(struct gps_device_t *session)
     if (session->lexer.type == SUPERSTAR2_PACKET) {
 	return superstar2_dispatch(session, session->lexer.outbuffer,
 				   session->lexer.length);;
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     } else if (session->lexer.type == NMEA_PACKET) {
 	return nmea_parse((char *)session->lexer.outbuffer, session);
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
     } else
 	return 0;
 }
diff --git a/driver_ubx.c b/driver_ubx.c
index fe50946..41ff709 100644
--- a/driver_ubx.c
+++ b/driver_ubx.c
@@ -633,10 +633,10 @@ static gps_mask_t parse_input(struct gps_device_t *session)
     if (session->lexer.type == UBX_PACKET) {
 	return ubx_parse(session, session->lexer.outbuffer,
 			 session->lexer.outbuflen);
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     } else if (session->lexer.type == NMEA_PACKET) {
 	return nmea_parse((char *)session->lexer.outbuffer, session);
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
     } else
 	return 0;
 }
diff --git a/drivers.c b/drivers.c
index edd6a7d..de5ce78 100644
--- a/drivers.c
+++ b/drivers.c
@@ -27,7 +27,7 @@ gps_mask_t generic_parse_input(struct gps_device_t *session)
     else if (session->lexer.type == COMMENT_PACKET) {
 	gpsd_set_century(session);
 	return 0;
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     } else if (session->lexer.type == NMEA_PACKET) {
 	const struct gps_type_t **dp;
 	gps_mask_t st = 0;
@@ -61,7 +61,7 @@ gps_mask_t generic_parse_input(struct gps_device_t *session)
 	    }
 	}
 	return st;
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
     } else {
 	gpsd_log(&session->context->errout, LOG_SHOUT,
 		 "packet type %d fell through (should never happen): %s.\n",
@@ -104,7 +104,7 @@ const struct gps_type_t driver_unknown = {
 };
 /* *INDENT-ON* */
 
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
 /**************************************************************************
  *
  * NMEA 0183
@@ -144,14 +144,14 @@ static void nmea_event_hook(struct gps_device_t *session, event_t event)
 	 * unless there is actual following data.
 	 */
 	switch (session->lexer.counter) {
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
 	case 0:
 	    /* probe for Garmin serial GPS -- expect $PGRMC followed by data */
 	    gpsd_log(&session->context->errout, LOG_PROG,
 		     "=> Probing for Garmin NMEA\n");
 	    (void)nmea_send(session, "$PGRMCE");
 	    break;
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 #ifdef SIRF_ENABLE
 	case 1:
 	    /*
@@ -181,7 +181,7 @@ static void nmea_event_hook(struct gps_device_t *session, event_t event)
 	    session->back_to_nmea = true;
 	    break;
 #endif /* SIRF_ENABLE */
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
 	case 2:
 	    /* probe for the FV-18 -- expect $PFEC,GPint followed by data */
 	    gpsd_log(&session->context->errout, LOG_PROG,
@@ -194,7 +194,7 @@ static void nmea_event_hook(struct gps_device_t *session, event_t event)
 		     "=> Probing for Trimble Copernicus\n");
 	    (void)nmea_send(session, "$PTNLSNM,0139,01");
 	    break;
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 #ifdef EVERMORE_ENABLE
 	case 4:
 	    gpsd_log(&session->context->errout, LOG_PROG,
@@ -276,7 +276,7 @@ const struct gps_type_t driver_nmea0183 = {
 };
 /* *INDENT-ON* */
 
-#if defined(GARMIN_ENABLE) && defined(NMEA_ENABLE)
+#if defined(GARMIN_ENABLE) && defined(NMEA0183_ENABLE)
 /**************************************************************************
  *
  * Garmin NMEA
@@ -377,7 +377,7 @@ const struct gps_type_t driver_garmin = {
 #endif /* TIMEHINT_ENABLE */
 };
 /* *INDENT-ON* */
-#endif /* GARMIN_ENABLE && NMEA_ENABLE */
+#endif /* GARMIN_ENABLE && NMEA0183_ENABLE */
 
 #ifdef ASHTECH_ENABLE
 /**************************************************************************
@@ -641,7 +641,7 @@ static const struct gps_type_t driver_earthmate = {
 /* *INDENT-ON* */
 #endif /* EARTHMATE_ENABLE */
 
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 
 #ifdef TNT_ENABLE
 /**************************************************************************
@@ -1351,10 +1351,10 @@ static gps_mask_t aivdm_analyze(struct gps_device_t *session)
 	    return ONLINE_SET | AIS_SET;
 	} else
 	    return ONLINE_SET;
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     } else if (session->lexer.type == NMEA_PACKET) {
 	return nmea_parse((char *)session->lexer.outbuffer, session);
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
     } else
 	return 0;
 }
@@ -1548,7 +1548,7 @@ extern const struct gps_type_t driver_zodiac;
 /* the point of this rigamarole is to not have to export a table size */
 static const struct gps_type_t *gpsd_driver_array[] = {
     &driver_unknown,
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     &driver_nmea0183,
 #ifdef ASHTECH_ENABLE
     &driver_ashtech,
@@ -1583,7 +1583,7 @@ static const struct gps_type_t *gpsd_driver_array[] = {
 #ifdef AIVDM_ENABLE
     &driver_aivdm,
 #endif /* AIVDM_ENABLE */
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 
 #ifdef EVERMORE_ENABLE
     &driver_evermore,
diff --git a/gpsd.h-tail b/gpsd.h-tail
index 829a86e..b76e7ce 100644
--- a/gpsd.h-tail
+++ b/gpsd.h-tail
@@ -46,8 +46,8 @@
 #if !defined(AIVDM_ENABLE) && defined(NMEA2000_ENABLE)
 #define AIVDM_ENABLE
 #endif
-#if !defined(NMEA_ENABLE) && (defined(FV18_ENABLE) || defined(MTK3301_ENABLE) || defined(TNT_ENABLE) || defined(OCEANSERVER_ENABLE) || defined(GPSCLOCK_ENABLE) || defined(FURY_ENABLE))
-#define NMEA_ENABLE
+#if !defined(NMEA0183_ENABLE) && (defined(FV18_ENABLE) || defined(MTK3301_ENABLE) || defined(TNT_ENABLE) || defined(OCEANSERVER_ENABLE) || defined(GPSCLOCK_ENABLE) || defined(FURY_ENABLE))
+#define NMEA0183_ENABLE
 #endif
 #ifdef EARTHMATE_ENABLE
 #define ZODIAC_ENABLE
@@ -485,7 +485,7 @@ struct gps_device_t {
     int fixcnt;				/* count of fixes from this device */
     struct gps_fix_t newdata;		/* where drivers put their data */
     struct gps_fix_t oldfix;		/* previous fix for error modeling */
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     struct {
 	unsigned short sats_used[MAXCHANNELS];
 	int part, await;		/* for tracking GSV parts */
@@ -515,7 +515,7 @@ struct gps_device_t {
 	unsigned int cycle_enders;
 	bool cycle_continue;
     } nmea;
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
     /*
      * The rest of this structure is driver-specific private storage.
      * Only put a driver's scratch storage in here if it is never
diff --git a/gpsmon.c b/gpsmon.c
index 58c8300..3b7a4fb 100644
--- a/gpsmon.c
+++ b/gpsmon.c
@@ -39,9 +39,9 @@ extern struct monitor_object_t garmin_mmt, garmin_bin_ser_mmt;
 extern struct monitor_object_t italk_mmt, ubx_mmt, superstar2_mmt;
 extern struct monitor_object_t fv18_mmt, gpsclock_mmt, mtk3301_mmt;
 extern struct monitor_object_t oncore_mmt, tnt_mmt, aivdm_mmt;
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
 extern const struct gps_type_t driver_nmea0183;
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 
 /* These are public */
 struct gps_device_t session;
@@ -76,11 +76,11 @@ const struct monitor_object_t json_mmt = {
 #endif /* PASSTHROUGH_ENABLE */
 
 static const struct monitor_object_t *monitor_objects[] = {
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     &nmea_mmt,
-#if defined(GARMIN_ENABLE) && defined(NMEA_ENABLE)
+#if defined(GARMIN_ENABLE) && defined(NMEA0183_ENABLE)
     &garmin_mmt,
-#endif /* GARMIN_ENABLE && NMEA_ENABLE */
+#endif /* GARMIN_ENABLE && NMEA0183_ENABLE */
 #if defined(GARMIN_ENABLE) && defined(BINARY_ENABLE)
     &garmin_bin_ser_mmt,
 #endif /* defined(GARMIN_ENABLE) && defined(BINARY_ENABLE) */
@@ -99,7 +99,7 @@ static const struct monitor_object_t *monitor_objects[] = {
 #ifdef AIVDM_ENABLE
     &aivdm_mmt,
 #endif /* AIVDM_ENABLE */
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 #if defined(SIRF_ENABLE) && defined(BINARY_ENABLE)
     &sirf_mmt,
 #endif /* defined(SIRF_ENABLE) && defined(BINARY_ENABLE) */
@@ -561,11 +561,11 @@ static void select_packet_monitor(struct gps_device_t *device)
      */
     if (device->lexer.type != last_type) {
 	const struct gps_type_t *active_type = device->device_type;
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
 	if (device->lexer.type == NMEA_PACKET
 	    && ((device->device_type->flags & DRIVER_STICKY) != 0))
 	    active_type = &driver_nmea0183;
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 	if (!switch_type(active_type))
 	    longjmp(terminate, TERM_DRIVER_SWITCH);
 	else {
diff --git a/libgpsd_core.c b/libgpsd_core.c
index a241e55..31fec2a 100644
--- a/libgpsd_core.c
+++ b/libgpsd_core.c
@@ -560,7 +560,7 @@ int gpsd_activate(struct gps_device_t *session, const int mode)
 	return session->gpsdata.gps_fd;
     }
 
-#ifdef NON_NMEA_ENABLE
+#ifdef NON_NMEA0183_ENABLE
     /* if it's a sensor, it must be probed */
     if ((session->servicetype == service_sensor) &&
 	(session->sourcetype != source_can)) {
@@ -590,7 +590,7 @@ int gpsd_activate(struct gps_device_t *session, const int mode)
 		 "no probe matched...\n");
     }
 foundit:
-#endif /* NON_NMEA_ENABLE */
+#endif /* NON_NMEA0183_ENABLE */
 
     gpsd_clear(session);
     gpsd_log(&session->context->errout, LOG_INF,
diff --git a/monitor_nmea0183.c b/monitor_nmea0183.c
index e664f9a..be48790 100644
--- a/monitor_nmea0183.c
+++ b/monitor_nmea0183.c
@@ -19,7 +19,7 @@
 #include "gpsdclient.h"
 #include "strfuncs.h"
 
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
 extern const struct gps_type_t driver_nmea0183;
 
 static WINDOW *cookedwin, *nmeawin, *satwin, *gprmcwin, *gpggawin, *gpgsawin, *gpgstwin;
@@ -390,7 +390,7 @@ static void monitor_nmea_send(const char *fmt, ...)
  * display or implement device-specific commands.
  */
 
-#if defined(GARMIN_ENABLE) && defined(NMEA_ENABLE)
+#if defined(GARMIN_ENABLE) && defined(NMEA0183_ENABLE)
 extern const struct gps_type_t driver_garmin;
 
 const struct monitor_object_t garmin_mmt = {
@@ -401,7 +401,7 @@ const struct monitor_object_t garmin_mmt = {
     .min_y = 21,.min_x = 80,
     .driver = &driver_garmin,
 };
-#endif /* GARMIN_ENABLE && NMEA_ENABLE */
+#endif /* GARMIN_ENABLE && NMEA0183_ENABLE */
 
 #ifdef ASHTECH_ENABLE
 extern const struct gps_type_t driver_ashtech;
@@ -524,4 +524,4 @@ const struct monitor_object_t aivdm_mmt = {
     .driver = &driver_aivdm,
 };
 #endif /* AIVDM_ENABLE */
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
diff --git a/packet.c b/packet.c
index c8b64f5..4ba40e5 100644
--- a/packet.c
+++ b/packet.c
@@ -225,7 +225,7 @@ static bool nextstate(struct gps_lexer_t *lexer, unsigned char c)
 	    lexer->state = COMMENT_BODY;
 	    break;
 	}
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
 	if (c == '$') {
 	    lexer->state = NMEA_DOLLAR;
 	    break;
@@ -234,7 +234,7 @@ static bool nextstate(struct gps_lexer_t *lexer, unsigned char c)
 	    lexer->state = NMEA_BANG;
 	    break;
 	}
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 #if defined(TNT_ENABLE) || defined(GARMINTXT_ENABLE) || defined(ONCORE_ENABLE)
 	if (c == '@') {
 #ifdef RTCM104V2_ENABLE
@@ -345,7 +345,7 @@ static bool nextstate(struct gps_lexer_t *lexer, unsigned char c)
 	else if (!isprint(c))
 	    return character_pushback(lexer, GROUND_STATE);
 	break;
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
     case NMEA_DOLLAR:
 	if (c == 'G')
 	    lexer->state = NMEA_PUB_LEAD;
@@ -788,7 +788,7 @@ static bool nextstate(struct gps_lexer_t *lexer, unsigned char c)
 	else
 	    return character_pushback(lexer, GROUND_STATE);
 	break;
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 #ifdef SIRF_ENABLE
     case SIRF_LEADER_1:
 	if (c == 0xa2)
@@ -1118,10 +1118,10 @@ static bool nextstate(struct gps_lexer_t *lexer, unsigned char c)
     case UBX_RECOGNIZED:
 	if (c == 0xb5)
 	    lexer->state = UBX_LEADER_1;
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
 	else if (c == '$')	/* LEA-5H can and will output NMEA and UBX back to back */
 	    lexer->state = NMEA_DOLLAR;
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 #ifdef PASSTHROUGH_ENABLE
 	else if (c == '{')
 	    return character_pushback(lexer, JSON_LEADER);
@@ -1526,7 +1526,7 @@ void packet_parse(struct gps_lexer_t *lexer)
 	    lexer->state = GROUND_STATE;
 	    break;
 	}
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
 	else if (lexer->state == NMEA_RECOGNIZED) {
 	    /*
 	     * $PASHR packets have no checksum. Avoid the possibility
@@ -1591,7 +1591,7 @@ void packet_parse(struct gps_lexer_t *lexer)
 	    packet_discard(lexer);
 	    break;
 	}
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 #ifdef SIRF_ENABLE
 	else if (lexer->state == SIRF_RECOGNIZED) {
 	    unsigned char *trailer = lexer->inbufptr - 4;
diff --git a/packet_states.h b/packet_states.h
index 22dbccf..8839b98 100644
--- a/packet_states.h
+++ b/packet_states.h
@@ -4,7 +4,7 @@
    COMMENT_BODY,	/* pound comment for a test load */
    COMMENT_RECOGNIZED,	/* comment recognized */
 
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
    NMEA_DOLLAR,		/* we've seen first character of NMEA leader */
    NMEA_BANG,		/* we've seen first character of an AIS message '!' */
    NMEA_PUB_LEAD,	/* seen second character of NMEA G leader */
@@ -37,7 +37,7 @@
    TRANSDUCER_LEAD_1,	/* Generic transducer packet leader 'Y' */
    BEIDOU_LEAD_1,	/* Beidou leader */
    QZSS_LEAD_1,		/* Quasi-Zenith Satellite System leader */
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 
    DLE_LEADER,		/* we've seen the TSIP/EverMore leader (DLE) */
 
diff --git a/timebase.c b/timebase.c
index 0b3192e..b2e7939 100644
--- a/timebase.c
+++ b/timebase.c
@@ -259,7 +259,7 @@ void gpsd_set_century(struct gps_device_t *session)
     }
 }
 
-#ifdef NMEA_ENABLE
+#ifdef NMEA0183_ENABLE
 timestamp_t gpsd_utc_resolve(struct gps_device_t *session)
 /* resolve a UTC date, checking for rollovers */
 {
@@ -321,7 +321,7 @@ void gpsd_century_update(struct gps_device_t *session, int century)
 	session->context->valid &=~ CENTURY_VALID;
     }
 }
-#endif /* NMEA_ENABLE */
+#endif /* NMEA0183_ENABLE */
 
 timestamp_t gpsd_gpstime_resolve(struct gps_device_t *session,
 			 unsigned short week, double tow)
--
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