diff --git a/src/gui/scan_setup.cpp b/src/gui/scan_setup.cpp
index 669973216..7d8d38d80 100644
--- a/src/gui/scan_setup.cpp
+++ b/src/gui/scan_setup.cpp
@@ -9,7 +9,7 @@
 	Copyright (C) 2011 T. Graf 'dbt'
 	Homepage: http://www.dbox2-tuning.net/
 
-	Copyright (C) 2011-2012 Stefan Seyfried
+	Copyright (C) 2011-2015 Stefan Seyfried
 	Copyright (C) 2011-2014 CoolStream International Ltd
 
 	License: GPL
@@ -160,7 +160,11 @@ const CMenuOptionChooser::keyval CABLESETUP_SCANTP_FEC[CABLESETUP_SCANTP_FEC_COU
 };
 #endif
 
+#if _HAVE_DVB57
 #define TERRSETUP_SCANTP_FEC_COUNT	9
+#else
+#define TERRSETUP_SCANTP_FEC_COUNT	8
+#endif
 const CMenuOptionChooser::keyval TERRSETUP_SCANTP_FEC[TERRSETUP_SCANTP_FEC_COUNT] =
 {
 	// DVB-T
@@ -171,37 +175,51 @@ const CMenuOptionChooser::keyval TERRSETUP_SCANTP_FEC[TERRSETUP_SCANTP_FEC_COUNT
 	{ FEC_7_8,  LOCALE_EXTRA_FEC_7_8  },
 	{ FEC_AUTO, LOCALE_EXTRA_FEC_AUTO },
 	// DTMB ie
+#if _HAVE_DVB57
 	{ FEC_2_5,  LOCALE_EXTRA_FEC_2_5  }, 
+#endif
 	{ FEC_3_5,  LOCALE_EXTRA_FEC_3_5  }, 
 	{ FEC_4_5,  LOCALE_EXTRA_FEC_4_5  }, 
 
 };
 
+#if _HAVE_DVB57
 #define TERRSETUP_SCANTP_BW_COUNT	7
+#else
+#define TERRSETUP_SCANTP_BW_COUNT	4
+#endif
 const CMenuOptionChooser::keyval TERRSETUP_SCANTP_BW[TERRSETUP_SCANTP_BW_COUNT] =
 {
 	{ BANDWIDTH_8_MHZ,     LOCALE_EXTRA_TP_BANDWIDTH_8MHZ     },
 	{ BANDWIDTH_7_MHZ,     LOCALE_EXTRA_TP_BANDWIDTH_7MHZ     },
 	{ BANDWIDTH_6_MHZ,     LOCALE_EXTRA_TP_BANDWIDTH_6MHZ     },
+#if _HAVE_DVB57
 	{ BANDWIDTH_5_MHZ,     LOCALE_EXTRA_TP_BANDWIDTH_5MHZ     },
 	{ BANDWIDTH_10_MHZ,    LOCALE_EXTRA_TP_BANDWIDTH_10MHZ    },
 	{ BANDWIDTH_1_712_MHZ, LOCALE_EXTRA_TP_BANDWIDTH_1_712MHZ },
+#endif
 	{ BANDWIDTH_AUTO,      LOCALE_EXTRA_TP_BANDWIDTH_AUTO     }
 };
 
+#if _HAVE_DVB57
 #define TERRSETUP_SCANTP_GI_COUNT	11
+#else
+#define TERRSETUP_SCANTP_GI_COUNT	5
+#endif
 const CMenuOptionChooser::keyval TERRSETUP_SCANTP_GI[TERRSETUP_SCANTP_GI_COUNT] =
 {
 	{ GUARD_INTERVAL_1_4,    LOCALE_EXTRA_TP_GI_1_4    },
 	{ GUARD_INTERVAL_1_8,    LOCALE_EXTRA_TP_GI_1_8    },
 	{ GUARD_INTERVAL_1_16,   LOCALE_EXTRA_TP_GI_1_16   },
 	{ GUARD_INTERVAL_1_32,   LOCALE_EXTRA_TP_GI_1_32   },
+#if _HAVE_DVB57
 	{ GUARD_INTERVAL_1_128,  LOCALE_EXTRA_TP_GI_1_128  },
 	{ GUARD_INTERVAL_19_128, LOCALE_EXTRA_TP_GI_19_128 },
 	{ GUARD_INTERVAL_19_256, LOCALE_EXTRA_TP_GI_19_256 },
 	{ GUARD_INTERVAL_PN420,  LOCALE_EXTRA_TP_GI_PN420  },
 	{ GUARD_INTERVAL_PN595,  LOCALE_EXTRA_TP_GI_PN595  },
 	{ GUARD_INTERVAL_PN945,  LOCALE_EXTRA_TP_GI_PN945  },
+#endif
 	{ GUARD_INTERVAL_AUTO,   LOCALE_EXTRA_TP_GI_AUTO   }
 };
 
@@ -215,17 +233,25 @@ const CMenuOptionChooser::keyval TERRSETUP_SCANTP_HIERARCHY[TERRSETUP_SCANTP_HIE
 	{ HIERARCHY_AUTO, LOCALE_EXTRA_TP_HIERARCHY_AUTO }
 };
 
+#if _HAVE_DVB57
 #define TERRSETUP_SCANTP_TRANSMIT_MODE_COUNT	9
+#else
+#define TERRSETUP_SCANTP_TRANSMIT_MODE_COUNT	4
+#endif
 const CMenuOptionChooser::keyval TERRSETUP_SCANTP_TRANSMIT_MODE[TERRSETUP_SCANTP_TRANSMIT_MODE_COUNT] =
 {
+#if _HAVE_DVB57
 	{ TRANSMISSION_MODE_1K,    LOCALE_EXTRA_TP_TRANSMIT_MODE_1K    },
+#endif
 	{ TRANSMISSION_MODE_2K,    LOCALE_EXTRA_TP_TRANSMIT_MODE_2K    },
 	{ TRANSMISSION_MODE_4K,    LOCALE_EXTRA_TP_TRANSMIT_MODE_4K    },
 	{ TRANSMISSION_MODE_8K,    LOCALE_EXTRA_TP_TRANSMIT_MODE_8K    },
+#if _HAVE_DVB57
 	{ TRANSMISSION_MODE_16K,   LOCALE_EXTRA_TP_TRANSMIT_MODE_16K   },
 	{ TRANSMISSION_MODE_32K,   LOCALE_EXTRA_TP_TRANSMIT_MODE_32K   },
 	{ TRANSMISSION_MODE_C1,    LOCALE_EXTRA_TP_TRANSMIT_MODE_C1    },
 	{ TRANSMISSION_MODE_C3780, LOCALE_EXTRA_TP_TRANSMIT_MODE_C3780 },
+#endif
 	{ TRANSMISSION_MODE_AUTO,  LOCALE_EXTRA_TP_TRANSMIT_MODE_AUTO  }
 };
 
@@ -248,14 +274,20 @@ const CMenuOptionChooser::keyval CABLESETUP_SCANTP_MOD[CABLESETUP_SCANTP_MOD_COU
 	{ QAM_AUTO, LOCALE_EXTRA_TP_MOD_AUTO }
 };
 
+#if _HAVE_DVB57
 #define TERRSETUP_SCANTP_MOD_COUNT 6
+#else
+#define TERRSETUP_SCANTP_MOD_COUNT 5
+#endif
 const CMenuOptionChooser::keyval TERRSETUP_SCANTP_MOD[TERRSETUP_SCANTP_MOD_COUNT] =
 {
 	{ QPSK,     LOCALE_EXTRA_TP_MOD_4    },
 	{ QAM_16,   LOCALE_EXTRA_TP_MOD_16   },
 	{ QAM_32,   LOCALE_EXTRA_TP_MOD_32   },
 	{ QAM_64,   LOCALE_EXTRA_TP_MOD_64   },
+#if _HAVE_DVB57
 	{ QAM_4_NR, LOCALE_EXTRA_TP_MOD_4_NR },
+#endif
 	{ QAM_AUTO, LOCALE_EXTRA_TP_MOD_AUTO }
 };
 
diff --git a/src/zapit/include/zapit/frontend_types.h b/src/zapit/include/zapit/frontend_types.h
index 98a2f456a..7c9d4551f 100644
--- a/src/zapit/include/zapit/frontend_types.h
+++ b/src/zapit/include/zapit/frontend_types.h
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2012 CoolStream International Ltd
+ * Copyright (C) 2013,2015 Stefan Seyfried
  *
  * License: GPLv2
  *
@@ -58,6 +59,18 @@
 #define ZAPIT_DS_IS_TERR(ds)	(((ds) & ZAPIT_DM_TERR) != 0)
 #define ZAPIT_DS_IS_CABLE(ds)	(((ds) & ZAPIT_DM_CABLE) != 0)
 #define ZAPIT_DS_BIT_MASK(ds)	((1 << (ds)) & ZAPIT_DS_MASK)
+
+/* compat stuff for building with older DVB-API versions */
+/* actually, DVB-T2 is available from API 5.3, and SYS_TURBO is available from 5.4,
+ * but all this is pretty much unused anyway, so we can stick it under one #define */
+#if ((DVB_API_VERSION > 5) || (DVB_API_VERSION == 5 && DVB_API_VERSION_MINOR > 6))
+#define _HAVE_DVB57 1
+#else
+#warning DVB_API < 5.7 -- no DVB-T2/DTMB support.
+/* this is actually needed before 5.5, not 5.7, but this works for now */
+#define SYS_DVBC_ANNEX_A SYS_DVBC_ANNEX_AC
+#endif
+
 /* dvb transmission types */
 typedef enum {
 	UNKNOWN_DS = ZAPIT_DS_UNKNOWN,
@@ -103,9 +116,9 @@ typedef struct {
 
 	zapit_pilot_t		pilot;
 	fe_rolloff_t		rolloff;
-
+#if _HAVE_DVB57
 	enum fe_interleaving	interleaving;
-
+#endif
 	uint8_t			polarization;
 } FrontendParameters;
 
diff --git a/src/zapit/src/frontend.cpp b/src/zapit/src/frontend.cpp
index 4babbc02c..37abe13bf 100644
--- a/src/zapit/src/frontend.cpp
+++ b/src/zapit/src/frontend.cpp
@@ -3,7 +3,7 @@
  *
  * (C) 2002-2003 Andreas Oberritter <obi@tuxbox.org>
  *
- * (C) 2007-2013 Stefan Seyfried
+ * (C) 2007-2013,2015 Stefan Seyfried
  * Copyright (C) 2011 CoolStream International Ltd 
  *
  * This program is free software; you can redistribute it and/or modify
@@ -552,8 +552,10 @@ fe_bandwidth_t CFrontend::getBandwidth(const uint8_t bandwidth)
 		return BANDWIDTH_7_MHZ;
 	case 0x02:
 		return BANDWIDTH_6_MHZ;
+#if _HAVE_DVB57
 	case 0x03:
 		return BANDWIDTH_5_MHZ;
+#endif
 	default:
 		return BANDWIDTH_AUTO; // AUTO
 	}
@@ -868,9 +870,11 @@ void CFrontend::getDelSys(delivery_system_t delsys, int f, int m, char *&fec, ch
 		case QAM_256:
 			mod = (char *)"QAM_256";
 			break;
+#if _HAVE_DVB57
 		case QAM_4_NR:
 			mod = (char *)"QAM_4_NR";
 			break;
+#endif
 		case QPSK:
 			if (delsys == DVB_T || delsys == DVB_T2 || delsys == DTMB) {
 				mod = (char *)"QPSK"; // AKA QAM_4
@@ -921,9 +925,11 @@ void CFrontend::getDelSys(delivery_system_t delsys, int f, int m, char *&fec, ch
 	case FEC_9_10:
 		fec = (char *)"9/10";
 		break;
+#if _HAVE_DVB57
 	case FEC_2_5:
-		fec = (char *)"2/3";
+		fec = (char *)"2/5";
 		break;
+#endif
 	default:
 		INFO("unknown FEC: %d!", f);
 	case FEC_AUTO:
@@ -946,9 +952,11 @@ fe_delivery_system_t CFrontend::getFEDeliverySystem(delivery_system_t Delsys)
 	case DVB_T:
 		delsys = SYS_DVBT;
 		break;
+#if _HAVE_DVB57
 	case DVB_T2:
 		delsys = SYS_DVBT2;
 		break;
+#endif
 	case DVB_C:
 		delsys = SYS_DVBC_ANNEX_A;
 		break;
@@ -964,15 +972,17 @@ fe_delivery_system_t CFrontend::getFEDeliverySystem(delivery_system_t Delsys)
 	case ISDBS:
 		delsys = SYS_ISDBS;
 		break;
-	case DTMB:
-		delsys = SYS_DTMB;
-		break;
 	case DSS:
 		delsys = SYS_DSS;
 		break;
+#if _HAVE_DVB57
+	case DTMB:
+		delsys = SYS_DTMB;
+		break;
 	case TURBO:
 		delsys = SYS_TURBO;
 		break;
+#endif
 	default:
 		delsys = SYS_UNDEFINED;
 		break;
@@ -1052,9 +1062,11 @@ uint32_t CFrontend::getFEBandwidth(fe_bandwidth_t bandwidth)
 	case BANDWIDTH_6_MHZ:
 		bandwidth_hz  = 6000000;
 		break;
+#if HAVE_DVBT2
 	case BANDWIDTH_5_MHZ:
 		bandwidth_hz  = 5000000;
 		break;
+#endif
 	}
 
 	return bandwidth_hz;
@@ -1107,9 +1119,11 @@ bool CFrontend::buildProperties(const FrontendParameters *feparams, struct dtv_p
 	case FEC_9_10:
 		fec = FEC_9_10;
 		break;
+#if HAVE_DTMB
 	case FEC_2_5:
 		fec = FEC_2_5;
 		break;
+#endif
 	default:
 		INFO("[fe%d] unknown FEC: %d", fenumber, fec_inner);
 	case FEC_AUTO: