diff --git a/src/platforms/hosted/ftdi_bmp.h b/src/platforms/hosted/ftdi_bmp.h
index fc2a8def..02b40123 100644
--- a/src/platforms/hosted/ftdi_bmp.h
+++ b/src/platforms/hosted/ftdi_bmp.h
@@ -103,8 +103,22 @@ extern cable_desc_t *active_cable;
 extern struct ftdi_context *ftdic;
 extern data_desc_t active_state;
 
+#if HOSTED_BMP_ONLY == 1
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wunused-parameter"
+int ftdi_bmp_init(BMP_CL_OPTIONS_t *cl_opts, bmp_info_t *info) {return -1;};
+int libftdi_swdptap_init(swd_proc_t *swd_proc) {return -1;};
+int libftdi_jtagtap_init(jtag_proc_t *jtag_proc) {return 0;};
+void libftdi_buffer_flush(void) {};
+int libftdi_buffer_write(const uint8_t *data, int size) {return size;};
+int libftdi_buffer_read(uint8_t *data, int size) {return size;};
+const char *libftdi_target_voltage(void) {return "ERROR";};
+void libftdi_jtagtap_tdi_tdo_seq(
+	uint8_t *DO, const uint8_t final_tms, const uint8_t *DI, int ticks) {};
+bool  libftdi_swd_possible(bool *do_mpsse, bool *direct_bb_swd) {return false;};
+# pragma GCC diagnostic pop
+#else
 int ftdi_bmp_init(BMP_CL_OPTIONS_t *cl_opts, bmp_info_t *info);
-
 int libftdi_swdptap_init(swd_proc_t *swd_proc);
 int libftdi_jtagtap_init(jtag_proc_t *jtag_proc);
 void libftdi_buffer_flush(void);
@@ -114,6 +128,7 @@ const char *libftdi_target_voltage(void);
 void libftdi_jtagtap_tdi_tdo_seq(
 	uint8_t *DO, const uint8_t final_tms, const uint8_t *DI, int ticks);
 bool  libftdi_swd_possible(bool *do_mpsse, bool *direct_bb_swd);
+#endif
 
 #define MPSSE_SK 1
 #define PIN0     1
diff --git a/src/platforms/hosted/jlink.h b/src/platforms/hosted/jlink.h
index 27e81bf1..f7553127 100644
--- a/src/platforms/hosted/jlink.h
+++ b/src/platforms/hosted/jlink.h
@@ -43,7 +43,17 @@
 #define SELECT_IF_JTAG            0
 #define SELECT_IF_SWD             1
 
-
+#if HOSTED_BMP_ONLY == 1
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wunused-parameter"
+int jlink_init(bmp_info_t *info) {return -1;};
+int jlink_swdp_scan(bmp_info_t *info) {return 0;};
+int jlink_jtagtap_init(bmp_info_t *info, jtag_proc_t *jtag_proc) {return 0;};
+const char *jlink_target_voltage(bmp_info_t *info) {return "ERROR";};
+void jlink_srst_set_val(bmp_info_t *info, bool assert) {};
+bool jlink_srst_get_val(bmp_info_t *info) {return true;};
+# pragma GCC diagnostic pop
+#else
 int jlink_init(bmp_info_t *info);
 int jlink_swdp_scan(bmp_info_t *info);
 int jlink_jtagtap_init(bmp_info_t *info, jtag_proc_t *jtag_proc);
@@ -51,3 +61,4 @@ const char *jlink_target_voltage(bmp_info_t *info);
 void jlink_srst_set_val(bmp_info_t *info, bool assert);
 bool jlink_srst_get_val(bmp_info_t *info);
 #endif
+#endif
diff --git a/src/platforms/hosted/stlinkv2.h b/src/platforms/hosted/stlinkv2.h
index d42ec143..6f639bc3 100644
--- a/src/platforms/hosted/stlinkv2.h
+++ b/src/platforms/hosted/stlinkv2.h
@@ -24,16 +24,30 @@
 
 #define STLINK_DEBUG_PORT_ACCESS            0xffff
 
+#if HOSTED_BMP_ONLY == 1
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wunused-parameter"
+int stlink_init(bmp_info_t *info) {return -1;};
+int stlink_hwversion(void) {return -1;};
+const char *stlink_target_voltage(bmp_info_t *info) {return "ERROR";};
+void stlink_srst_set_val(bmp_info_t *info, bool assert) {};
+bool stlink_srst_get_val(void) {return true;};
+int stlink_enter_debug_swd(bmp_info_t *info, ADIv5_DP_t *dp) {return -1;};
+void stlink_adiv5_dp_defaults(ADIv5_DP_t *dp) {};
+int stlink_jtag_dp_init(ADIv5_DP_t *dp) {return false;};
+int jtag_scan_stlinkv2(bmp_info_t *info, const uint8_t *irlens) {return 0;};
+void stlink_exit_function(bmp_info_t *info) {};
+# pragma GCC diagnostic pop
+#else
 int stlink_init(bmp_info_t *info);
 int stlink_hwversion(void);
 const char *stlink_target_voltage(bmp_info_t *info);
 void stlink_srst_set_val(bmp_info_t *info, bool assert);
 bool stlink_srst_get_val(void);
 int stlink_enter_debug_swd(bmp_info_t *info, ADIv5_DP_t *dp);
-
-const char *stlink_target_voltage(bmp_info_t *info);
 void stlink_adiv5_dp_defaults(ADIv5_DP_t *dp);
 int stlink_jtag_dp_init(ADIv5_DP_t *dp);
 int jtag_scan_stlinkv2(bmp_info_t *info, const uint8_t *irlens);
 void stlink_exit_function(bmp_info_t *info);
 #endif
+#endif