Increase compiler warnings and fix them

src/amps/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 bin_PROGRAMS = \
 	amps tacs jtacs

src/amps/amps.c

@@ -342,7 +342,7 @@ const char *amps_scm(uint8_t scm)
 	return text;
 }
 
-const char *amps_mpci(uint8_t mpci)
+static const char *amps_mpci(uint8_t mpci)
 {
 	switch (mpci) {
 	case 0:
@@ -359,7 +359,7 @@ const char *amps_mpci(uint8_t mpci)
 
 }
 
-const char *amps_state_name(enum amps_state state)
+static const char *amps_state_name(enum amps_state state)
 {
 	static char invalid[16];
 

src/amps/amps.h

@@ -171,6 +171,7 @@ struct amps {
 	int			when_count;		/* counter of the filler frame */
 };
 
+void amps_display_status(void);
 void amps_channel_list(void);
 int amps_channel_by_short_name(const char *short_name);
 const char *chan_type_short_name(enum amps_chan_type chan_type);

src/amps/jtacs_tones.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "tones.h"
 
 static int16_t pattern_ringback[1000] = {
 	0x00e5, 0x0070, 0x001c, 0x0001, 0x001c, 0x0070, 0x00e5, 0x0168,

src/amps/tacs_outoforder.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "outoforder.h"
 
 static int16_t pattern[] = {
 	0x0000, 0x0000, 0xffff, 0x0002, 0xfffe, 0x0003, 0xfffd, 0x0001,

src/amps/tacs_tones.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "tones.h"
 
 static int16_t pattern_ringback[] = {
 	0x000b, 0x0008, 0x000d, 0x000e, 0x000d, 0x0012, 0x0011, 0xffcd,

src/amps/usa_congestion.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "congestion.h"
 
 static int16_t pattern[] = {
 	0xfffd, 0x0004, 0xfffb, 0x0004, 0xfffe, 0x0001, 0x0001, 0xfffe,

src/amps/usa_invalidnumber.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "invalidnumber.h"
 
 static int16_t pattern[] = {
 	0xfffe, 0x0001, 0xffff, 0x0001, 0xffff, 0x0002, 0xfffe, 0x0002,

src/amps/usa_noanswer.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "noanswer.h"
 
 static int16_t pattern[] = {
 	0xfe24, 0xfd20, 0xfd2c, 0xfdb5, 0xfeba, 0xfe20, 0xfd41, 0xfe32,

src/amps/usa_outoforder.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "outoforder.h"
 
 static int16_t pattern[] = {
 	0xfeae, 0xfde4, 0xfe26, 0xfea7, 0xfe94, 0xfe8a, 0xfeb4, 0xfe3b,

src/amps/usa_tones.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "tones.h"
 
 static int16_t pattern_ringback[] = {
 	0x0070, 0x00dd, 0x013b, 0x0192, 0x0191, 0x0153, 0x0099, 0xffb2,

src/anetz/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 bin_PROGRAMS = \
 	anetz

src/anetz/anetz.c

@@ -37,7 +37,7 @@
 #define PAGING_TO	30,0	/* Nach dieser Zeit ist der Operator genervt... */
 #define RELEASE_TO	3,0	/* Release time, so station keeps blocked for a while */
 
-const char *anetz_state_name(enum anetz_state state)
+static const char *anetz_state_name(enum anetz_state state)
 {
 	static char invalid[16];
 
@@ -58,7 +58,7 @@ const char *anetz_state_name(enum anetz_state state)
 	return invalid;
 }
 
-void anetz_display_status(void)
+static void anetz_display_status(void)
 {
 	sender_t *sender;
 	anetz_t *anetz;

src/anetz/besetztton.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "besetztton.h"
 
 static int16_t pattern[] = {
 	0x0004, 0xffe9, 0xffc9, 0xffac, 0xff92, 0xff83, 0xff75, 0xff56,

src/anetz/dsp.c

@@ -386,7 +386,7 @@ void sender_send(sender_t *sender, sample_t *samples, uint8_t *power, int length
 	}
 }
 
-const char *anetz_dsp_mode_name(enum dsp_mode mode)
+static const char *anetz_dsp_mode_name(enum dsp_mode mode)
 {
         static char invalid[16];
 

src/anetz/freiton.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "freiton.h"
 
 static int16_t pattern[] = {
 	0x0056, 0x0068, 0x0065, 0x005d, 0x0040, 0x0031, 0x001a, 0x000d,

src/anetz/stations.c

@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
+#include "stations.h"
 
 static struct anetz_stations {
 	const char	*standort;
@@ -147,7 +148,7 @@ static struct anetz_stations {
 	{ NULL, 0, 0, 0, 0, 0, NULL }
 };
 
-double lat_from_coordinates(const char *string)
+static double lat_from_coordinates(const char *string)
 {
 	if (strlen(string) != 11)
 		abort();
@@ -168,7 +169,7 @@ double lat_from_coordinates(const char *string)
 		(double)(string[4] - '0') / 60.0;
 }
 
-double lon_from_coordinates(const char *string)
+static double lon_from_coordinates(const char *string)
 {
 	if (strlen(string) != 11)
 		abort();

src/bnetz/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 bin_PROGRAMS = \
 	bnetz \

src/bnetz/bnetz.c

@@ -51,7 +51,7 @@
 #define METERING_DURATION_US	140000		/* duration of metering pulse (according to FTZ 1727 Pfl 32 Clause 3.2.6.6.1) */
 #define METERING_START		1,0		/* start metering 1 second after call start */
 
-const char *bnetz_state_name(enum bnetz_state state)
+static const char *bnetz_state_name(enum bnetz_state state)
 {
 	static char invalid[16];
 
@@ -80,7 +80,7 @@ const char *bnetz_state_name(enum bnetz_state state)
 	return invalid;
 }
 
-void bnetz_display_status(void)
+static void bnetz_display_status(void)
 {
 	sender_t *sender;
 	bnetz_t *bnetz;

src/bnetz/dialer.c

@@ -68,8 +68,11 @@ wave_rec_t wave_tx_rec;
 
 /* dummy functions */
 int num_kanal = 1; /* only one channel used for debugging */
+void *get_sender_by_empfangsfrequenz(void);
 void *get_sender_by_empfangsfrequenz() { return NULL; }
+void display_measurements_add(void);
 void display_measurements_add() {}
+void display_measurements_update(void);
 void display_measurements_update() {}
 
 #define OPT_METERING	1000

src/bnetz/dsp.c

@@ -396,7 +396,7 @@ again:
 	}
 }
 
-const char *bnetz_dsp_mode_name(enum dsp_mode mode)
+static const char *bnetz_dsp_mode_name(enum dsp_mode mode)
 {
         static char invalid[16];
 

src/bnetz/stations.c

@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
+#include "stations.h"
 
 static struct bnetz_stations {
 	const char	*standort;
@@ -221,7 +222,7 @@ static struct bnetz_stations {
 	{ NULL,				0,	NULL }
 };
 
-double lat_from_coordinates(const char *string)
+static double lat_from_coordinates(const char *string)
 {
 	if (strlen(string) != 11)
 		abort();
@@ -242,7 +243,7 @@ double lat_from_coordinates(const char *string)
 		(double)(string[4] - '0') / 60.0;
 }
 
-double lon_from_coordinates(const char *string)
+static double lon_from_coordinates(const char *string)
 {
 	if (strlen(string) != 11)
 		abort();

src/cnetz/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 bin_PROGRAMS = \
 	cnetz

src/cnetz/cnetz.c

@@ -230,7 +230,7 @@ static uint8_t cnetz_power2bits(int power)
 	}
 }
 
-const char *cnetz_state_name(enum cnetz_state state)
+static const char *cnetz_state_name(enum cnetz_state state)
 {
 	static char invalid[16];
 
@@ -273,7 +273,7 @@ static void cnetz_new_state(cnetz_t *cnetz, enum cnetz_state new_state)
 }
 
 /* Convert ISDN cause to 'Ausloesegrund' of C-Netz mobile station */
-uint8_t cnetz_cause_isdn2cnetz(int cause)
+static uint8_t cnetz_cause_isdn2cnetz(int cause)
 {
 	switch (cause) {
 	case CAUSE_NORMAL:

src/cnetz/dsp.c

@@ -54,7 +54,7 @@ scrambler_t scrambler_test_scrambler1;
 scrambler_t scrambler_test_scrambler2;
 #endif
 
-const char *cnetz_dsp_mode_name(enum dsp_mode mode)
+static const char *cnetz_dsp_mode_name(enum dsp_mode mode)
 {
         static char invalid[16];
 

src/datenklo/Makefile.am

@@ -1,4 +1,5 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes) $(FUSE_CFLAGS)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes) \
+	$(FUSE_CFLAGS)
 
 bin_PROGRAMS = \
 	datenklo

src/datenklo/am791x.c

@@ -300,13 +300,13 @@ void am791x_list_mc(enum am791x_type type)
 }
 
 /* init STO signal */
-void init_sto(am791x_t *am791x)
+static void init_sto(am791x_t *am791x)
 {
 	am791x->sto_phaseshift65536 = 900 / (double)am791x->samplerate * 65536.0;
 }
 
 /* transmit STO signal, use phase from FSK modulator, to avoid phase jumps */
-int send_sto(am791x_t *am791x, sample_t *sample, int length)
+static int send_sto(am791x_t *am791x, sample_t *sample, int length)
 {
 	fsk_mod_t *fsk = &am791x->fsk_tx;
 	int count = 0;

src/datenklo/datenklo.c

@@ -1246,7 +1246,7 @@ static void dk_unlock(void)
 }
 
 /* signal handler to exit */
-void sighandler(int sigset)
+static void sighandler(int sigset)
 {
 	if (sigset == SIGHUP)
 		return;

src/datenklo/main.c

@@ -27,6 +27,7 @@
 #include <math.h>
 #include "../libsample/sample.h"
 #include <osmocom/core/timer.h>
+#include <osmocom/cc/misc.h>
 #include "../liboptions/options.h"
 #include "../liblogging/logging.h"
 #include "../libfsk/fsk.h"
@@ -49,6 +50,7 @@
 
 /* dummy functions */
 int num_kanal = 1; /* only one channel used for debugging */
+void *get_sender_by_empfangsfrequenz(void);
 void *get_sender_by_empfangsfrequenz() { return "void"; }
 
 static datenklo_t datenklo[MAX_DEVICES];
@@ -71,7 +73,7 @@ const char *write_rx_wave = NULL;
 const char *read_tx_wave = NULL;
 const char *read_rx_wave = NULL;
 
-void print_help(const char *arg0)
+static void print_help(const char *arg0)
 {
 	printf("Usage: %s [options] -M <mode>\n\n", arg0);
 	/*      -                                                                             - */
@@ -235,7 +237,7 @@ static int handle_options(int short_option, int argi, char **argv)
 	return 1;
 }
 
-const char *inc_dev_name(const char *dev_name)
+static const char *inc_dev_name(const char *dev_name)
 {
 	char *new_name, *number;
 	int integer;
@@ -326,5 +328,5 @@ fail:
 	return 0;
 }
 
-void osmo_cc_set_log_cat(void) {}
+void osmo_cc_set_log_cat(int __attribute__((unused)) cc_log_cat) {}
 

src/dcf77/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 if HAVE_ALSA
 bin_PROGRAMS = \

src/dcf77/dcf77.c

@@ -1131,8 +1131,9 @@ static void rx_frame(dcf77_rx_t *rx, uint64_t frame)
 	}
 }
 
+#if 0
 /* test routing for test data */
-void rx_frame_test(dcf77_t *dcf77, const char *string)
+static void rx_frame_test(dcf77_t *dcf77, const char *string)
 {
 	uint64_t frame = 0;
 	int i;
@@ -1144,6 +1145,7 @@ void rx_frame_test(dcf77_t *dcf77, const char *string)
 
 	rx_frame(&dcf77->rx, frame);
 }
+#endif
 
 /* receive one symbol = one second */
 static void rx_symbol(dcf77_t *dcf77, char symbol)

src/dcf77/main.c

@@ -33,6 +33,7 @@
 #include "../libsample/sample.h"
 #include "../libsound/sound.h"
 #include "../libaaimage/aaimage.h"
+#include <osmocom/cc/misc.h>
 #include "dcf77.h"
 #include "cities.h"
 
@@ -61,6 +62,7 @@ static int rt_prio = 0;
 static int fast_math = 0;
 
 /* not static, in case we add libtimer some day, then compiler hits an error */
+double get_time(void);
 double get_time(void)
 {
 	static struct timespec tv;
@@ -138,7 +140,7 @@ static void print_usage(const char *app)
 	printf("Usage: %s [-a hw:0,0] [<options>]\n", app);
 }
 
-void print_help(void)
+static void print_help(void)
 {
 	/*      -                                                                             - */
 	printf(" -h --help\n");
@@ -411,7 +413,7 @@ static int get_char()
                 return -1;
 }
 
-int soundif_open(const char *audiodev, int samplerate, int buffer_size)
+static int soundif_open(const char *audiodev, int samplerate, int buffer_size)
 {
 	enum sound_direction direction = SOUND_DIR_DUPLEX;
 
@@ -434,13 +436,13 @@ int soundif_open(const char *audiodev, int samplerate, int buffer_size)
 	return 0;
 }
 
-void soundif_start(void)
+static void soundif_start(void)
 {
 	sound_start(soundif);
 	LOGP(DDSP, LOGL_DEBUG, "Starting audio stream!\n");
 }
 
-void soundif_close(void)
+static void soundif_close(void)
 {
 	/* close audiodev */
 	if (soundif) {
@@ -449,7 +451,7 @@ void soundif_close(void)
 	}
 }
 
-void soundif_work(int buffer_size)
+static void soundif_work(int buffer_size)
 {
 	int count;
 	sample_t buff1[buffer_size], buff2[buffer_size], *samples[2] = { buff1, buff2 };
@@ -654,5 +656,5 @@ error:
 	return 0;
 }
 
-void osmo_cc_set_log_cat(void) {}
+void osmo_cc_set_log_cat(int __attribute__((unused)) cc_log_cat) {}
 

src/eurosignal/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 bin_PROGRAMS = \
 	eurosignal

src/eurosignal/es_ges.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "es_ges.h"
 
 static int16_t pattern[] = {
 	0x003f, 0xff8e, 0x0092, 0x0097, 0x001f, 0x0048, 0xffd9, 0xffdb,

src/eurosignal/es_kaudn.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "es_kaudn.h"
 
 static int16_t pattern[] = {
 	0x0022, 0x0014, 0xffde, 0xff85, 0xff24, 0xff00, 0xff2c, 0xff88,

src/eurosignal/es_mitte.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "es_mitte.h"
 
 static int16_t pattern[] = {
 	0xff96, 0xffd4, 0x0020, 0x0073, 0x0084, 0x0061, 0x002f, 0xfffd,

src/eurosignal/es_teilges.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "es_teilges.h"
 
 static int16_t pattern[] = {
 	0xffa4, 0xffae, 0xffc2, 0xff8a, 0xffb4, 0xfff0, 0xfffa, 0x0005,

src/fuenf/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 bin_PROGRAMS = \
 	5-ton-folge

src/fuenf/fuenf.c

@@ -145,7 +145,7 @@ static void fuenf_display_status(void)
 	display_status_end();
 }
 
-void fuenf_new_state(fuenf_t *fuenf, enum fuenf_state new_state)
+static void fuenf_new_state(fuenf_t *fuenf, enum fuenf_state new_state)
 {
 	if (fuenf->state == new_state)
 		return;

src/fuvst/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 if HAVE_ALSA
 bin_PROGRAMS = \

src/fuvst/fuvst.c

@@ -449,7 +449,7 @@ static const char *transaction2rufnummer(transaction_t *trans)
 	return nut2rufnummer(trans->futln_nat, trans->futln_fuvst, trans->futln_rest);
 }
 
-const char *state_name(enum call_state state)
+static const char *state_name(enum call_state state)
 {
 	static char invalid[16];
 
@@ -478,7 +478,7 @@ const char *state_name(enum call_state state)
 	return invalid;
 }
 
-void display_status(void)
+static void display_status(void)
 {
 	sender_t *sender;
 	fuvst_t *fuvst;
@@ -515,7 +515,7 @@ static void new_call_state(transaction_t *trans, enum call_state new_state)
 	display_status();
 }
 
-transaction_t *search_transaction_number(uint8_t futln_nat, uint8_t futln_fuvst, uint16_t futln_rest)
+static transaction_t *search_transaction_number(uint8_t futln_nat, uint8_t futln_fuvst, uint16_t futln_rest)
 {
 	transaction_t *trans = trans_list;
 
@@ -533,7 +533,7 @@ transaction_t *search_transaction_number(uint8_t futln_nat, uint8_t futln_fuvst,
 	return NULL;
 }
 
-transaction_t *search_transaction_ident(uint8_t ident)
+static transaction_t *search_transaction_ident(uint8_t ident)
 {
 	transaction_t *trans = trans_list;
 
@@ -549,7 +549,7 @@ transaction_t *search_transaction_ident(uint8_t ident)
 	return NULL;
 }
 
-transaction_t *search_transaction_callref(int callref)
+static transaction_t *search_transaction_callref(int callref)
 {
 	transaction_t *trans = trans_list;
 
@@ -601,7 +601,7 @@ static void destroy_transaction(transaction_t *trans)
 }
 
 /* Timeout handling */
-void trans_timeout(void *data)
+static void trans_timeout(void *data)
 {
 	transaction_t *trans = data;
 
@@ -722,7 +722,7 @@ static fuvst_t *get_spk(uint8_t Q)
 }
 
 /* Convert 'Ausloesegrund' of C-Netz base station to ISDN cause */
-int cnetz_fufst2cause(uint8_t X)
+static int cnetz_fufst2cause(uint8_t X)
 {
 	switch (X) {
 	case 0:		/* undefiniert */
@@ -745,7 +745,7 @@ int cnetz_fufst2cause(uint8_t X)
 }
 
 /* Convert ISDN cause to 'Ausloesegrund' of C-Netz mobile station */
-uint8_t cnetz_cause2futln(int cause)
+static uint8_t cnetz_cause2futln(int cause)
 {
 	switch (cause) {
 	case CAUSE_NORMAL:

src/fuvst/mup.c

@@ -671,7 +671,7 @@ void decode_abaf(uint8_t *data, int len, uint16_t *T, uint8_t *U, uint8_t *N)
 static char digit2char[16] = "0123456789a*#bcd";
 
 /* MO call */
-void _decode_outgoing(uint8_t *data, int len, uint16_t *T, uint8_t *U, uint8_t *N, char *number)
+static void _decode_outgoing(uint8_t *data, int len, uint16_t *T, uint8_t *U, uint8_t *N, char *number)
 {
 	int i;
 

src/fuvst/sniffer.c

@@ -155,7 +155,7 @@ static void receive_bit(void *inst, int bit)
 }
 
 /* Destroy transceiver instance and unlink from list. */
-void sniffer_destroy(sender_t *sender)
+static void sniffer_destroy(sender_t *sender)
 {
 	sniffer_t *sniffer = (sniffer_t *) sender;
 

src/golay/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 bin_PROGRAMS = \
 	golay

src/imts/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 bin_PROGRAMS = \
 	imts \

src/imts/dialer.c

@@ -62,8 +62,11 @@ wave_rec_t wave_tx_rec;
 
 /* dummy functions */
 int num_kanal = 1; /* only one channel used for debugging */
+void *get_sender_by_empfangsfrequenz(void);
 void *get_sender_by_empfangsfrequenz() { return NULL; }
+void display_measurements_add(void);
 void display_measurements_add() {}
+void display_measurements_update(void);
 void display_measurements_update() {}
 
 static void print_help(const char *arg0)

src/imts/dsp.c

@@ -526,7 +526,7 @@ void sender_receive(sender_t *sender, sample_t *samples, int length, double rf_l
 
 }
 
-const char *imts_dsp_mode_name(enum dsp_mode mode)
+static const char *imts_dsp_mode_name(enum dsp_mode mode)
 {
         static char invalid[16];
 

src/imts/imts.c

@@ -177,7 +177,7 @@ void imts_list_channels(void)
 #define RECEIVE_TIME	0.200		/* Time until detecting receive signal (Guard tone) from mobile */
 #define ANSWER_TIME	0.200		/* Time until detecting answer signal (Connect tone) from mobile */
 
-const char *imts_state_name(enum imts_state state)
+static const char *imts_state_name(enum imts_state state)
 {
 	static char invalid[16];
 

src/jolly/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 bin_PROGRAMS = \
 	jollycom

src/jolly/jolly.c

@@ -153,7 +153,7 @@
 #define SPEECH_DELAY_VERIFY	2,0	/* time before speaking verifying sequence */
 #define SPEECH_DELAY_RELEASE	2,0	/* time before speaking release sequence */
 
-const char *jolly_state_name(enum jolly_state state)
+static const char *jolly_state_name(enum jolly_state state)
 {
 	static char invalid[16];
 
@@ -180,7 +180,7 @@ const char *jolly_state_name(enum jolly_state state)
 	return invalid;
 }
 
-void jolly_display_status(void)
+static void jolly_display_status(void)
 {
 	sender_t *sender;
 	jolly_t *jolly;

src/libaaimage/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libaaimage.a
 

src/libam/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libam.a
 

src/libclipper/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libclipper.a
 

src/libcompandor/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libcompandor.a
 

src/libdisplay/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libdisplay.a
 

src/libdtmf/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libdtmf.a
 

src/libemphasis/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libemphasis.a
 

src/libfft/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libfft.a
 

src/libfilter/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libfilter.a
 

src/libfm/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libfm.a
 

src/libfsk/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libfsk.a
 

src/libgoertzel/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libgoertzel.a
 

src/libhagelbarger/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libhagelbarger.a
 

src/libhagelbarger/hagelbarger.c

@@ -25,7 +25,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "stdint.h"
+#include <stdint.h>
+#include "hagelbarger.h"
 
 /* enable to debug the process of parity check */
 //#define DEBUG_HAGEL

src/libimage/Makefile.am

@@ -1,4 +1,5 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes) $(IMAGEMAGICK_CFLAGS) 
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes) \
+	$(IMAGEMAGICK_CFLAGS) 
 
 noinst_LIBRARIES = libimage.a
 

src/libjitter/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libjitter.a
 

src/liblogging/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = liblogging.a
 

src/libmobile/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libmobile.a
 

src/libmobile/call.c

@@ -672,7 +672,7 @@ void call_clock(void)
 }
 
 /* messages received from fixed network */
-void ll_msg_cb(osmo_cc_endpoint_t __attribute__((unused)) *ep, uint32_t callref, osmo_cc_msg_t *msg)
+static void ll_msg_cb(osmo_cc_endpoint_t __attribute__((unused)) *ep, uint32_t callref, osmo_cc_msg_t *msg)
 {
 	process_t *process;
 	uint8_t coding, location, progress, isdn_cause, socket_cause;

src/libmobile/call.h

@@ -9,6 +9,9 @@ enum number_type {
 	TYPE_INTERNATIONAL,
 };
 
+void encode_l16(uint8_t *src_data, int src_len, uint8_t **dst_data, int *dst_len, void __attribute__((unused)) *arg);
+void decode_l16(uint8_t *src_data, int src_len, uint8_t **dst_data, int *dst_len, void __attribute__((unused)) *arg);
+
 int call_init(const char *name, int _send_patterns, int _release_on_disconnect, int use_socket, int argc, const char *argv[], int no_l16);
 void call_exit(void);
 int call_handle(void);
@@ -43,3 +46,6 @@ void call_down_audio(void *decoder, void *decoder_priv, int callref, uint16_t se
 void call_clock(void); /* from main loop */
 void call_down_clock(void); /* towards mobile implementation */
 
+/* display call states */
+void dump_info(void);
+

src/libmobile/console.c

@@ -92,9 +92,6 @@ static console_t console;
 
 extern osmo_cc_endpoint_t *ep;
 
-void encode_l16(uint8_t *src_data, int src_len, uint8_t **dst_data, int *dst_len, void __attribute__((unused)) *arg);
-void decode_l16(uint8_t *src_data, int src_len, uint8_t **dst_data, int *dst_len, void __attribute__((unused)) *arg);
-
 static struct osmo_cc_helper_audio_codecs codecs[] = {
 	{ "L16", 8000, 1, encode_l16, decode_l16 },
 	{ NULL, 0, 0, NULL, NULL},

src/libmobile/main_mobile.c

@@ -417,8 +417,6 @@ void main_mobile_add_options(void)
 #endif
 };
 
-void print_help(const char *arg0);
-
 int main_mobile_handle_options(int short_option, int argi, char **argv)
 {
 	double gain_db;

src/libmobile/main_mobile.h

@@ -28,6 +28,8 @@ struct number_lengths {
 	const char *usage;
 };
 
+void print_help(const char *);
+
 const char *mobile_number_remove_prefix(const char *number);
 const char *mobile_number_check_length(const char *number);
 const char *mobile_number_check_digits(const char *number);
@@ -57,5 +59,3 @@ void sighandler(int sigset);
 
 void main_mobile_loop(const char *name, int *quit, void (*myhandler)(void), const char *station_id);
 
-void dump_info(void);
-

src/libmobile/testton.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include "testton.h"
 
 static uint16_t pattern[] = {
 	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0001, 0x0001, 0x0000,

src/libmtp/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libmtp.a
 

src/liboptions/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = liboptions.a
 

src/libsample/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libsample.a
 

src/libsamplerate/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libsamplerate.a
 

src/libscrambler/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libscrambler.a
 

src/libsdr/Makefile.am

@@ -1,4 +1,5 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes) $(SOAPY_CFLAGS)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes) \
+	$(SOAPY_CFLAGS)
 
 noinst_LIBRARIES = libsdr.a
 

src/libsendevolumenregler/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libsendevolumenregler.a
 

src/libserial/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libserial.a
 

src/libsound/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libsound.a
 

src/libsound/sound.h

@@ -13,4 +13,6 @@ void sound_close(void *inst);
 int sound_write(void *inst, sample_t **samples, uint8_t **power, int num, enum paging_signal *paging_signal, int *on, int channels);
 int sound_read(void *inst, sample_t **samples, int num, int channels, double *rf_level_db);
 int sound_get_tosend(void *inst, int buffer_size);
+int sound_is_stereo_capture(void *inst);
+int sound_is_stereo_playback(void *inst);
 

src/libsquelch/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libsquelch.a
 

src/libv27/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libv27.a
 

src/libwave/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libwave.a
 

src/magnetic/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 bin_PROGRAMS = \
 	cnetz_magnetic

src/magnetic/main.c

@@ -32,6 +32,7 @@
 #include "../liblogging/logging.h"
 #include "../liboptions/options.h"
 #include "../libaaimage/aaimage.h"
+#include <osmocom/cc/misc.h>
 #include "iso7811.h"
 
 int num_kanal = 1;
@@ -54,7 +55,7 @@ static const char *sicherung = "12345";
 #define CNETZ_SWITCH_ON		27	/* switch closing during lead-out, in digit-duration */ 
 #define CNETZ_SWITCH_OFF	42	/* switch opening during lead-out, in digit-duration */ 
 
-void print_help(const char *arg0)
+static void print_help(const char *arg0)
 {
 	printf("Usage: %s [options] -a hw:0,0 <number> | service\n", arg0);
 	/*      -                                                                             - */
@@ -81,7 +82,7 @@ void print_help(const char *arg0)
 	printf("\n'service': BSA44 service card (to unlock phone after battery replacement)\n");
 }
 
-void add_options(void)
+static void add_options(void)
 {
 	option_add('h', "help", 0);
 	option_add('v', "debug", 1);
@@ -92,7 +93,7 @@ void add_options(void)
 	option_add('S', "sicherung", 1);
 };
 
-int handle_options(int short_option, int argi, char **argv)
+static int handle_options(int short_option, int argi, char **argv)
 {
 	int rc;
 
@@ -131,7 +132,7 @@ int handle_options(int short_option, int argi, char **argv)
 	return 1;
 }
 
-void sighandler(int sigset)
+static void sighandler(int sigset)
 {
 	if (sigset == SIGHUP)
 		return;
@@ -364,6 +365,6 @@ done:
 	return 0;
 }
 
-void osmo_cc_set_log_cat(void) {}
+void osmo_cc_set_log_cat(int __attribute__((unused)) cc_log_cat) {}
 
 #endif /* ARDUINO */

src/mate/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 bin_PROGRAMS = \
 	matesimulator

src/mate/matesimulator.c

@@ -50,8 +50,11 @@ wave_rec_t wave_tx_rec;
 
 /* dummy functions */
 int num_kanal = 1; /* only one channel used for debugging */
+void *get_sender_by_empfangsfrequenz(void);
 void *get_sender_by_empfangsfrequenz() { return NULL; }
+void display_measurements_add(void);
 void display_measurements_add() {}
+void display_measurements_update(void);
 void display_measurements_update() {}
 
 /* mate fill table according to eventphone's research */

src/mpt1327/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 bin_PROGRAMS = \
 	mpt1327

src/mpt1327/dsp.c

@@ -318,7 +318,7 @@ void sender_send(sender_t *sender, sample_t *samples, uint8_t *power, int length
 	fsk_mod_send(&mpt1327->fsk_mod, samples, length, 0);
 }
 
-const char *mpt1327_dsp_mode_name(enum dsp_mode mode)
+static const char *mpt1327_dsp_mode_name(enum dsp_mode mode)
 {
         static char invalid[16];
 

src/mpt1327/mpt1327.c

@@ -153,7 +153,7 @@ static mpt1327_unit_t *unit_list = NULL;
 #define UNIT_CALL_CLEAR		(1 << 12)	/* established call */
 #define UNIT_CANCEL_ACK		(1 << 13)	/* need to ack cancelation */
 
-const char *unit_state_name(uint64_t state)
+static const char *unit_state_name(uint64_t state)
 {
 	static char invalid[32];
 
@@ -194,7 +194,7 @@ const char *unit_state_name(uint64_t state)
 	return invalid;
 }
 
-void unit_new_state(mpt1327_unit_t *unit, uint64_t new_state)
+static void unit_new_state(mpt1327_unit_t *unit, uint64_t new_state)
 {
 	LOGP(DMPT1327, LOGL_DEBUG, "Radio Unit (Prefix:%d Ident:%d) state: %s -> %s\n", unit->prefix, unit->ident, unit_state_name(unit->state), unit_state_name(new_state));
 	unit->state = new_state;
@@ -202,7 +202,7 @@ void unit_new_state(mpt1327_unit_t *unit, uint64_t new_state)
 
 static void unit_timeout(void *data);
 
-mpt1327_unit_t *get_unit(uint8_t prefix, uint16_t ident)
+static mpt1327_unit_t *get_unit(uint8_t prefix, uint16_t ident)
 {
 	mpt1327_unit_t **unitp;
 
@@ -224,7 +224,7 @@ mpt1327_unit_t *get_unit(uint8_t prefix, uint16_t ident)
 	return *unitp;
 }
 
-mpt1327_unit_t *find_unit_state(uint32_t state, mpt1327_t *tc)
+static mpt1327_unit_t *find_unit_state(uint32_t state, mpt1327_t *tc)
 {
 	mpt1327_unit_t *unit;
 
@@ -315,7 +315,7 @@ void flush_units(void)
 	}
 }
 
-void dump_units(void)
+static void dump_units(void)
 {
 	mpt1327_unit_t *unit = unit_list;
 
@@ -421,7 +421,7 @@ double mpt1327_channel2freq(enum mpt1327_band band, int channel, int uplink)
 }
 
 /* convert channel to chan field */
-uint16_t mpt1327_channel2chan(enum mpt1327_band band, int channel)
+static uint16_t mpt1327_channel2chan(enum mpt1327_band band, int channel)
 {
 	uint16_t chan = 0;
 
@@ -544,7 +544,7 @@ static mpt1327_t *search_cc(void)
 
 }
 
-const char *mpt1327_state_name(enum mpt1327_state state)
+static const char *mpt1327_state_name(enum mpt1327_state state)
 {
 	static char invalid[16];
 
@@ -561,7 +561,7 @@ const char *mpt1327_state_name(enum mpt1327_state state)
 	return invalid;
 }
 
-void mpt1327_display_status(void)
+static void mpt1327_display_status(void)
 {
 	sender_t *sender;
 	mpt1327_t *mpt1327;
@@ -784,7 +784,7 @@ static int gtc_aloha_number(int length)
  * a dummy slot is used to allow radio unit to allow multi slot response to a
  * request from TSC.
  */
-int mpt1327_send_codeword_control(mpt1327_t *mpt1327, mpt1327_codeword_t *codeword)
+static int mpt1327_send_codeword_control(mpt1327_t *mpt1327, mpt1327_codeword_t *codeword)
 {
 	mpt1327_unit_t *unit;
 
@@ -1029,7 +1029,7 @@ int mpt1327_send_codeword_control(mpt1327_t *mpt1327, mpt1327_codeword_t *codewo
  * a SYNC is sent the next request will send the an ADDR codeword. this will
  * repeat until the repeat counter reaches 0.
  */
-int mpt1327_send_codeword_traffic(mpt1327_t *mpt1327, mpt1327_codeword_t __attribute__((unused)) *codeword)
+static int mpt1327_send_codeword_traffic(mpt1327_t *mpt1327, mpt1327_codeword_t __attribute__((unused)) *codeword)
 {
 	mpt1327_unit_t *unit;
 	mpt1327_t *cc;
@@ -1136,7 +1136,7 @@ static void _cancel_pending_call(mpt1327_t *mpt1327, mpt1327_unit_t *unit)
 	}
 }
 
-void mpt1327_receive_codeword_control(mpt1327_t *mpt1327, mpt1327_codeword_t *codeword)
+static void mpt1327_receive_codeword_control(mpt1327_t *mpt1327, mpt1327_codeword_t *codeword)
 {
 	mpt1327_unit_t *unit;
 	mpt1327_t *tc;
@@ -1438,7 +1438,7 @@ answer:
 	}
 }
 
-void mpt1327_receive_codeword_traffic(mpt1327_t *mpt1327, mpt1327_codeword_t *codeword)
+static void mpt1327_receive_codeword_traffic(mpt1327_t *mpt1327, mpt1327_codeword_t *codeword)
 {
 	mpt1327_unit_t *unit;
 

src/nmt/Makefile.am

@@ -1,4 +1,4 @@
-AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
+AM_CPPFLAGS = -Wall -Wextra -Wmissing-prototypes -g $(all_includes)
 
 noinst_LIBRARIES = libdmssms.a
 

src/nmt/dms.c

@@ -106,7 +106,7 @@ static const char *print_ct_dt(uint8_t s, uint8_t n, uint8_t *data, int eight_bi
 }
 
 /* link DMS frame to list of TX frames */
-void link_dms_frame(nmt_t *nmt, struct dms_frame *frame)
+static void link_dms_frame(nmt_t *nmt, struct dms_frame *frame)
 {
 	dms_t *dms = &nmt->dms;
 	struct dms_frame **framep;
@@ -121,7 +121,7 @@ void link_dms_frame(nmt_t *nmt, struct dms_frame *frame)
 }
 
 /* unlink DMS frame from list of TX frames */
-void unlink_dms_frame(nmt_t *nmt, struct dms_frame *frame)
+static void unlink_dms_frame(nmt_t *nmt, struct dms_frame *frame)
 {
 	dms_t *dms = &nmt->dms;
 	struct dms_frame **framep;

src/nmt/dsp.c

@@ -498,7 +498,7 @@ again:
 	}
 }
 
-const char *nmt_dsp_mode_name(enum dsp_mode mode)
+static const char *nmt_dsp_mode_name(enum dsp_mode mode)
 {
         static char invalid[16];
 

src/nmt/frame.c

@@ -680,7 +680,7 @@ static struct nmt_parameter {
 /* Depending on P-value, direction and additional info, frame index (used for
  * nmt_frame[]) is decoded.
  */
-enum nmt_mt decode_frame_mt(const uint8_t *digits, enum nmt_direction direction, int callack)
+static enum nmt_mt decode_frame_mt(const uint8_t *digits, enum nmt_direction direction, int callack)
 {
 	if (direction == MS_TO_MTX || direction == BS_TO_MTX || direction == XX_TO_MTX) {
 		/* MS/BS TO MTX */

src/nmt/nmt.c

@@ -65,7 +65,7 @@ static int sms_ref = 0;
 /* Counters */
 #define PAGE_TRIES	3	/* How many time do we try to page the phone */
 
-const char *nmt_state_name(enum nmt_state state)
+static const char *nmt_state_name(enum nmt_state state)
 {
 	static char invalid[16];
 
@@ -110,7 +110,7 @@ const char *nmt_state_name(enum nmt_state state)
 	return invalid;
 }
 
-void nmt_display_status(void)
+static void nmt_display_status(void)
 {
 	sender_t *sender;
 	nmt_t *nmt;
@@ -1799,7 +1799,7 @@ const char *nmt_get_frame(nmt_t *nmt)
  */
 
 /* Call control starts call towards mobile station. */
-int _out_setup(int callref, const char *caller_id, enum number_type caller_type, const char *dialing, const char *sms)
+static int _out_setup(int callref, const char *caller_id, enum number_type caller_type, const char *dialing, const char *sms)
 {
 	sender_t *sender;
 	nmt_t *nmt;
@@ -1864,7 +1864,7 @@ int call_down_setup(int callref, const char *caller_id, enum number_type caller_
 {
 	return _out_setup(callref, caller_id, caller_type, dialing, NULL);
 }
-int sms_out_setup(char *dialing, const char *caller_id, enum number_type caller_type, const char *sms)
+static int sms_out_setup(char *dialing, const char *caller_id, enum number_type caller_type, const char *sms)
 {
 	return _out_setup(0, caller_id, caller_type, dialing, sms);
 }

src/nmt/tones.c

@@ -1,5 +1,6 @@
 
 #include <stdint.h>
+#include "tones.h"
 
 static int16_t pattern[] = {
 	0, 5320, 10063, 13716, 15883, 16328, 15004, 12054, 7798, 2697, -2697, -7798, -12054, -15004, -16328, -15883, -13716, -10063, -5320,