Fixed warnings.

backend/apple.c

@@ -327,6 +327,8 @@ return SANE_STATUS_GOOD;
 static SANE_Status
 sense_handler (int scsi_fd, u_char * result, void *arg)
 {
+  scsi_fd = scsi_fd;			/* silence gcc */
+  arg = arg;					/* silence gcc */
 
   switch (result[2] & 0x0F)
     {
@@ -1861,6 +1863,8 @@ sane_init (SANE_Int * version_code, SANE_Auth_Callback authorize)
   size_t len;
   FILE *fp;
 
+  authorize = authorize;	/* silence gcc */
+
   DBG_INIT ();
 
   if (version_code)
@@ -1922,6 +1926,8 @@ sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
   Apple_Device *dev;
   int i;
 
+  local_only = local_only;		/* silence gcc */
+
   if (devlist)
     free (devlist);
 
@@ -2656,6 +2662,8 @@ sane_set_io_mode (SANE_Handle handle, SANE_Bool non_blocking)
 {
 DBG (FLOW_CONTROL,"sane_set_io_mode: Entering.\n");
 
+ handle = handle;				/* silence gcc */
+
 if (non_blocking)
   {
   DBG (FLOW_CONTROL, "sane_set_io_mode: Don't call me please. "
@@ -2669,6 +2677,9 @@ return SANE_STATUS_GOOD;
 SANE_Status
 sane_get_select_fd (SANE_Handle handle, SANE_Int * fd)
 {
+  handle = handle;				/* silence gcc */
+  fd = fd;						/* silence gcc */
+
   DBG (FLOW_CONTROL, "sane_get_select_fd: Don't call me please. "
        "Unimplemented function\n");
   return SANE_STATUS_UNSUPPORTED;

backend/ricoh.c

@@ -50,6 +50,7 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
+#include <time.h>
 #include <sys/time.h>
 #include <unistd.h>
 #include <ctype.h>
@@ -481,6 +482,8 @@ sane_init (SANE_Int * version_code, SANE_Auth_Callback authorize)
   char devnam[PATH_MAX] = "/dev/scanner";
   FILE *fp;
 
+  authorize = authorize;		/* silence gcc */
+
   DBG_INIT ();
   DBG (11, ">> sane_init\n");
 
@@ -541,6 +544,9 @@ sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
   static const SANE_Device **devlist = 0;
   Ricoh_Device *dev;
   int i;
+
+  local_only = local_only;		/* silence gcc */
+
   DBG (11, ">> sane_get_devices\n");
 
   if (devlist)
@@ -996,6 +1002,9 @@ sane_cancel (SANE_Handle handle)
 SANE_Status
 sane_set_io_mode (SANE_Handle handle, SANE_Bool non_blocking)
 {
+  handle = handle;				/* silence gcc */
+  non_blocking = non_blocking;	/* silence gcc */
+
   DBG (5, ">> sane_set_io_mode\n");
   DBG (5, "<< sane_set_io_mode\n");
 
@@ -1005,6 +1014,9 @@ sane_set_io_mode (SANE_Handle handle, SANE_Bool non_blocking)
 SANE_Status
 sane_get_select_fd (SANE_Handle handle, SANE_Int * fd)
 {
+  handle = handle;				/* silence gcc */
+  fd = fd;						/* silence gcc */
+
   DBG (5, ">> sane_get_select_fd\n");
   DBG (5, "<< sane_get_select_fd\n");
 

backend/ricoh.h

@@ -110,9 +110,7 @@ static const SANE_Range default_y_range =
 
 
 static inline void
-_lto2b(val, bytes)
-        SANE_Int val;
-        SANE_Byte *bytes;
+_lto2b(SANE_Int val, SANE_Byte *bytes)
 {
 
         bytes[0] = (val >> 8) & 0xff;
@@ -120,9 +118,7 @@ _lto2b(val, bytes)
 }
 
 static inline void
-_lto3b(val, bytes)
-        SANE_Int val;
-        SANE_Byte *bytes;
+_lto3b(SANE_Int val, SANE_Byte *bytes)
 {
 
         bytes[0] = (val >> 16) & 0xff;
@@ -131,9 +127,7 @@ _lto3b(val, bytes)
 }
 
 static inline void
-_lto4b(val, bytes)
-        SANE_Int val;
-        SANE_Byte *bytes;
+_lto4b(SANE_Int val, SANE_Byte *bytes)
 {
 
         bytes[0] = (val >> 24) & 0xff;
@@ -143,8 +137,7 @@ _lto4b(val, bytes)
 }
 
 static inline SANE_Int
-_2btol(bytes)
-        SANE_Byte *bytes;
+_2btol(SANE_Byte *bytes)
 {
         SANE_Int rv;
 
@@ -154,8 +147,7 @@ _2btol(bytes)
 }
 
 static inline SANE_Int
-_3btol(bytes)
-        SANE_Byte *bytes;
+_3btol(SANE_Byte *bytes)
 {
         SANE_Int rv;
 
@@ -166,8 +158,7 @@ _3btol(bytes)
 }
 
 static inline SANE_Int
-_4btol(bytes)
-        SANE_Byte *bytes;
+_4btol(SANE_Byte *bytes)
 {
         SANE_Int rv;