Florian Weimer's Modern C porting patch: https://sourceforge.net/p/bristol/patches/3/

Avoid implicit ints and implicit function declarations, to prevent
build failures with future compilers which do not support them.

diff --git a/bristol/bristolmemorymoog.c b/bristol/bristolmemorymoog.c
index 6c58e4d92253a232..f51d684729f55b11 100644
--- a/bristol/bristolmemorymoog.c
+++ b/bristol/bristolmemorymoog.c
@@ -33,6 +33,7 @@
 #include "bristolmemorymoog.h"
 
 extern int buildCurrentTable(Baudio *, float);
+extern void doPitchWheel(Baudio *);
 
 /*
  * Use of these memorymoog global buffers will be an issue with use of multiple
diff --git a/libbrightonC11/bRoutines.c b/libbrightonC11/bRoutines.c
index 1983db220c0825ba..88d1e64a51a1e145 100644
--- a/libbrightonC11/bRoutines.c
+++ b/libbrightonC11/bRoutines.c
@@ -24,6 +24,7 @@
 
 void *
 brightonX11malloc(size)
+int size;
 {
 	void *mem;
 
diff --git a/libbrightonX11/bRoutines.c b/libbrightonX11/bRoutines.c
index 87dab9a93223ef0f..647f57181cdf4692 100644
--- a/libbrightonX11/bRoutines.c
+++ b/libbrightonX11/bRoutines.c
@@ -25,6 +25,7 @@
 
 void *
 brightonX11malloc(size)
+int size;
 {
 	void *mem;
 
diff --git a/libbristol/bristolcdefs.c b/libbristol/bristolcdefs.c
index a5f0638155fe40e3..45ccd11604ac37b8 100644
--- a/libbristol/bristolcdefs.c
+++ b/libbristol/bristolcdefs.c
@@ -25,6 +25,7 @@
 
 void *
 bristolmalloc(size)
+int size;
 {
 	char *mem;
 
@@ -39,6 +40,7 @@ bristolmalloc(size)
 
 void *
 bristolmalloc0(size)
+int size;
 {
 	char *mem;
 
diff --git a/libbristolaudio/audioEngine.c b/libbristolaudio/audioEngine.c
index d6aeb4b8976a1a84..e0367fc427b5dbc6 100644
--- a/libbristolaudio/audioEngine.c
+++ b/libbristolaudio/audioEngine.c
@@ -85,6 +85,7 @@ int
 initAudioDevice2(audioDev, devID, fragSize)
 duplexDev *audioDev;
 int devID;
+int fragSize;
 {
 	/*
 	 * The device is basically just opened for the first call of this routine.
@@ -118,6 +119,7 @@ int devID;
 int
 setAudioStart2(audioDev, devID)
 duplexDev *audioDev;
+int devID;
 {
 	int enable;
 
@@ -162,6 +164,7 @@ duplexDev *audioDev;
 int
 setAudioStop2(audioDev, devID)
 duplexDev *audioDev;
+int devID;
 {
 	int enable;
 
diff --git a/libbristolaudio/audioEngineOSS.c b/libbristolaudio/audioEngineOSS.c
index 26d9f89923bc7fb0..984b30efd4af9c2c 100644
--- a/libbristolaudio/audioEngineOSS.c
+++ b/libbristolaudio/audioEngineOSS.c
@@ -49,6 +49,7 @@ int
 ossAudioInit(audioDev, devID, fragSize)
 duplexDev *audioDev;
 int devID;
+int fragSize;
 {
 #if (BRISTOL_HAS_OSS == 1)
 	int results, data = 0, mode;
diff --git a/libbristolaudio/audioGUI.c b/libbristolaudio/audioGUI.c
index bd9410650b361101..bbdf5c68e6264569 100644
--- a/libbristolaudio/audioGUI.c
+++ b/libbristolaudio/audioGUI.c
@@ -161,6 +161,7 @@ duplexDev *audioDev;
 char *
 getControllerName(audioDev, controller)
 duplexDev *audioDev;
+int controller;
 {
 #if (BRISTOL_HAS_ALSA == 1)
 	if ((audioDev->flags & AUDIO_ALSA) != 0)
@@ -173,6 +174,8 @@ duplexDev *audioDev;
 int
 setRecordSource(audioDev, controller, position)
 duplexDev *audioDev;
+int controller;
+int position;
 {
 #if (BRISTOL_HAS_ALSA == 1)
 	if ((audioDev->flags & AUDIO_ALSA) != 0)
@@ -185,6 +188,7 @@ duplexDev *audioDev;
 int
 getRecordability(audioDev, controller)
 duplexDev *audioDev;
+int controller;
 {
 #if (BRISTOL_HAS_ALSA == 1)
 	if ((audioDev->flags & AUDIO_ALSA) != 0)
@@ -197,6 +201,7 @@ duplexDev *audioDev;
 int
 getMutability(audioDev, controller)
 duplexDev *audioDev;
+int controller;
 {
 #if (BRISTOL_HAS_ALSA == 1)
 	if ((audioDev->flags & AUDIO_ALSA) != 0)
@@ -211,6 +216,7 @@ duplexDev *audioDev;
 int
 getStereoStatus(audioDev, controller)
 duplexDev *audioDev;
+int controller;
 {
 #if (BRISTOL_HAS_ALSA == 1)
 	if ((audioDev->flags & AUDIO_ALSA) != 0)
@@ -222,6 +228,8 @@ duplexDev *audioDev;
 int
 getValue(audioDev, controller, side)
 duplexDev *audioDev;
+int controller;
+int side;
 {
 #if (BRISTOL_HAS_ALSA == 1)
 	if ((audioDev->flags & AUDIO_ALSA) != 0)
@@ -233,6 +241,9 @@ duplexDev *audioDev;
 int
 setAudioValue(audioDev, controller, side, value)
 duplexDev *audioDev;
+int controller;
+int side;
+int value;
 {
 	if (audioDev->cflags & SLAB_AUDIODBG)
 		printf("setAudioValue(%p, %i, %i, %i)\n", audioDev, controller, side, value); 
@@ -251,6 +262,8 @@ duplexDev *audioDev;
 int
 setAudioMute(audioDev, controller, value)
 duplexDev *audioDev;
+int controller;
+int value;
 {
 	if (audioDev->cflags & SLAB_AUDIODBG)
 		printf("setAudioMute()\n");
@@ -280,6 +293,7 @@ char *name;
 int
 getAudioCapability(audioDev, controller)
 duplexDev *audioDev;
+int controller;
 {
 	if (audioDev->cflags & SLAB_AUDIODBG)
 		printf("getAudioCapability(%s, %i)\n", audioDev->devName, controller);
@@ -296,6 +310,7 @@ duplexDev *audioDev;
 int
 validDev(audioDev, index)
 duplexDev *audioDev;
+int index;
 {
 #if (BRISTOL_HAS_ALSA == 1)
 	if ((audioDev->flags & AUDIO_ALSA) != 0)
diff --git a/libbristolaudio/audioGUIOSS.c b/libbristolaudio/audioGUIOSS.c
index d6e66d4ab7b72290..74dd973680d93fd0 100644
--- a/libbristolaudio/audioGUIOSS.c
+++ b/libbristolaudio/audioGUIOSS.c
@@ -91,7 +91,11 @@ short left, right;
  */
 static int
 setAudioOSS(fd, audioDev, param, valueL, valueR)
+int fd;
 duplexDev *audioDev;
+int param;
+int valueL;
+int valueR;
 {
 #if (BRISTOL_HAS_OSS == 1)
 	int value, command;
@@ -259,6 +263,7 @@ char *name;
 int
 getOSSCapability(audioDev, controller)
 duplexDev *audioDev;
+int controller;
 {
 	if ((audioDev->stereoCaps | audioDev->monoCaps) & (1 << controller))
 		return controller;
@@ -268,6 +273,7 @@ duplexDev *audioDev;
 int
 getOSSRecordability(audioDev, cont)
 duplexDev *audioDev;
+int cont;
 {
 	if (audioDev->cflags & SLAB_AUDIODBG)
 		printf("getOSSRecordability(%i, %i)\n", audioDev->devID, cont);
diff --git a/libbristolmidi/inetClient.c b/libbristolmidi/inetClient.c
index 17761c7588a9747e..06499763d28f8f2a 100644
--- a/libbristolmidi/inetClient.c
+++ b/libbristolmidi/inetClient.c
@@ -66,6 +66,7 @@ void	clientCheckSocket();
 int
 initControlPort(host, port)
 char	*host;
+int	port;
 {
 struct	sockaddr_in	connect_socket_addr;
 char				hostname[NAME_LENGTH];
diff --git a/libbristolmidi/midiRoutines.c b/libbristolmidi/midiRoutines.c
index 15a5835f09f28fbe..e4458a395fd94036 100644
--- a/libbristolmidi/midiRoutines.c
+++ b/libbristolmidi/midiRoutines.c
@@ -85,6 +85,7 @@ bristolMidiDevSanity(int dev)
 
 void
 bristolMidiPrintHandle(handle)
+int handle;
 {
 	printf("	Handle:	 %i\n", bmidi.handle[handle].handle);
 	printf("	State:   %i\n", bmidi.handle[handle].state);
@@ -103,6 +104,7 @@ bristolMidiPrintHandle(handle)
 
 int
 bristolMidiSanity(handle)
+int handle;
 {
 #ifdef DEBUG
 	printf("bristolMidiSanity(%i)\n", handle);
diff --git a/libbristolmidi/socketToolKit.c b/libbristolmidi/socketToolKit.c
index 7e4e5b1423905afe..f9b129fd577953c6 100644
--- a/libbristolmidi/socketToolKit.c
+++ b/libbristolmidi/socketToolKit.c
@@ -57,7 +57,9 @@ struct  sockaddr_un local_socket_addr;
 int
 open_remote_socket(name, port, listens, reqsig)
 char		*name; /* service name, must be known */
+int		port;
 int 		listens; /* Parameter for the number of connections accepted */
+int		reqsig;
 {
 	struct	servent		*service, service_tmp;
 	struct  sockaddr_in remote_socket_addr;