Fix various types of unused variable warnings

backend/kodakaio.c

@@ -632,7 +632,7 @@ static SANE_String_Const source_list[] = {
 };
 
 static const SANE_Range percent_range_fixed = {SANE_FIX(0.0), SANE_FIX(100.0), SANE_FIX(1.0)};
-static const SANE_Range percent_range_int = {0, 100, 1};
+/*static const SANE_Range percent_range_int = {0, 100, 1};*/
 
 /* prototypes */
 static SANE_Status attach_one_usb(SANE_String_Const devname);

backend/niash.c

@@ -985,8 +985,8 @@ sane_control_option (SANE_Handle h, SANE_Int n, SANE_Action Action,
 #ifdef EXPERIMENTAL
   SANE_Bool fLampIsOn;
   SANE_Bool fVal;
-#endif
   SANE_Bool fSame;
+#endif
 
   DBG (DBG_MSG, "sane_control_option: option %d, action %d\n", n, Action);
 
@@ -1095,8 +1095,10 @@ sane_control_option (SANE_Handle h, SANE_Int n, SANE_Action Action,
               return status;
             }
 
+#ifdef EXPERIMENTAL
           /* check values if they are equal */
           fSame = s->aValues[n].w == *(SANE_Word *) pVal;
+#endif
 
           /* set the values */
           s->aValues[n].w = *(SANE_Word *) pVal;

sanei/sanei_ir.c

@@ -60,8 +60,6 @@ double *
 sanei_ir_create_norm_histo (const SANE_Parameters * params,
                        const SANE_Uint *img_data)
 {
-  uint8_t *img_data8;
-  SANE_Uint *img_data16;
   int is, i;
   int num_pixels;
   int *histo_data;
@@ -417,8 +415,8 @@ SANE_Status
 sanei_ir_RGB_luminance (SANE_Parameters * params, const SANE_Uint **in_img,
                       SANE_Uint **out_img)
 {
-  SANE_Uint *outi, *dest;
-  int itop, is, i;
+  SANE_Uint *outi;
+  int itop, i;
 
   if ((params->depth < 8) || (params->depth > 16) ||
       (params->format != SANE_FRAME_GRAY))
@@ -449,7 +447,7 @@ SANE_Status
 sanei_ir_to_8bit (SANE_Parameters * params, const SANE_Uint *in_img,
                  SANE_Parameters * out_params, SANE_Uint **out_img)
 {
-  SANE_Uint *outi, *src, *dest;
+  SANE_Uint *outi;
   size_t ssize;
   int i, is;
 
@@ -664,7 +662,6 @@ sanei_ir_filter_mean (const SANE_Parameters * params,
   int ndiv, the_sum;
   int nrow, ncol;
   int hwr, hwc;
-  int depth;
   int *sum;
   int i, j;
 
@@ -678,7 +675,6 @@ sanei_ir_filter_mean (const SANE_Parameters * params,
 
   num_cols = params->pixels_per_line;
   num_rows = params->lines;
-  depth = params->depth;
 
   sum = malloc (num_cols * sizeof (int));
   if (!sum)
@@ -1128,7 +1124,7 @@ sanei_ir_dilate_mean (const SANE_Parameters * params,
   SANE_Uint *plane;
   unsigned int *dist_map, *manhattan;
   unsigned int *idx_map, *index;
-  int depth, dist;
+  int dist;
   int rows, cols;
   int k, i, itop;
   SANE_Status ret = SANE_STATUS_NO_MEM;
@@ -1136,7 +1132,6 @@ sanei_ir_dilate_mean (const SANE_Parameters * params,
   DBG (10, "sanei_ir_dilate_mean(): dist max = %d, expand = %d, win size = %d, smooth = %d, inner = %d\n",
     dist_max, expand, win_size, smooth, inner);
 
-  depth = params->depth;
   cols = params->pixels_per_line;
   rows = params->lines;
   itop = rows * cols;