Fix new gcc 4.6 warnings

simple-client.c:156:10: warning: variable ‘ar’ set but not used [-Wunused-but-set-variable]

etc.

clients/dnd.c

@@ -678,7 +678,6 @@ int
 main(int argc, char *argv[])
 {
 	struct display *d;
-	struct dnd *dnd;
 
 	d = display_create(&argc, &argv, option_entries);
 	if (d == NULL) {
@@ -688,7 +687,7 @@ main(int argc, char *argv[])
 
 	display_set_global_handler(d, global_handler);
 
-	dnd = dnd_create (d);
+	dnd_create(d);
 
 	display_run(d);
 

clients/gears.c

@@ -421,14 +421,13 @@ gears_create(struct display *display)
 int main(int argc, char *argv[])
 {
 	struct display *d;
-	struct gears *gears;
 
 	d = display_create(&argc, &argv, NULL);
 	if (d == NULL) {
 		fprintf(stderr, "failed to create display: %m\n");
 		return -1;
 	}
-	gears = gears_create(d);
+	gears_create(d);
 	display_run(d);
 
 	return 0;

clients/image.c

@@ -250,11 +250,8 @@ main(int argc, char *argv[])
 		return -1;
 	}
 
-	for (i = 1; i < argc; i++) {
-		struct image *image;
-
-		image = image_create (d, i, argv[i]);
-	}
+	for (i = 1; i < argc; i++)
+		image_create (d, i, argv[i]);
 
 	display_run(d);
 

clients/simple-client.c

@@ -153,7 +153,6 @@ create_shader(struct window *window, const char *source, GLenum shader_type)
 static void
 init_gl(struct window *window)
 {
-	GLfloat ar;
 	GLuint frag, vert;
 	GLint status;
 
@@ -163,7 +162,6 @@ init_gl(struct window *window)
 	glGenRenderbuffers(1, &window->gl.color_rbo);
 
 	glViewport(0, 0, window->geometry.width, window->geometry.height);
-	ar = (GLfloat)window->geometry.width / (GLfloat)window->geometry.height;
 
 	frag = create_shader(window, frag_shader_text, GL_FRAGMENT_SHADER);
 	vert = create_shader(window, vert_shader_text, GL_VERTEX_SHADER);

clients/terminal.c

@@ -666,7 +666,7 @@ static void
 terminal_shift_line(struct terminal *terminal, int d)
 {
 	union utf8_char *row;
-	struct attr *attr_row, attr;
+	struct attr *attr_row;
 	
 	row = terminal_get_row(terminal, terminal->row);
 	attr_row = terminal_get_attr_row(terminal, terminal->row);
@@ -681,7 +681,6 @@ terminal_shift_line(struct terminal *terminal, int d)
 		memmove(&row[terminal->column],
 		        &row[terminal->column + d],
 			(terminal->width - terminal->column - d) * sizeof(union utf8_char));
-		attr = attr_row[terminal->width - 1];
 		memmove(&attr_row[terminal->column], &attr_row[terminal->column + d],
 		        (terminal->width - terminal->column - d) * sizeof(struct attr));
 		memset(&row[terminal->width - d], 0, d * sizeof(union utf8_char));
@@ -704,7 +703,7 @@ terminal_resize(struct terminal *terminal, int width, int height)
 	struct attr *data_attr;
 	char *tab_ruler;
 	int data_pitch, attr_pitch;
-	int i, l, total_rows, start;
+	int i, l, total_rows;
 	struct rectangle allocation;
 	struct winsize ws;
 	int32_t pixel_width, pixel_height;
@@ -744,10 +743,8 @@ terminal_resize(struct terminal *terminal, int width, int height)
 
 		if (terminal->height > height) {
 			total_rows = height;
-			start = terminal->height - height;
 		} else {
 			total_rows = terminal->height;
-			start = 0;
 		}
 
 		for (i = 0; i < total_rows; i++) {

clients/view.c

@@ -209,11 +209,8 @@ main(int argc, char *argv[])
 		return -1;
 	}
 
-	for (i = 1; i < argc; i++) {
-		struct view *view;
-
-		view = view_create (d, i, argv[i]);
-	}
+	for (i = 1; i < argc; i++)
+		view_create (d, i, argv[i]);
 
 	display_run(d);
 

clients/window.c

@@ -865,15 +865,13 @@ window_handle_motion(void *data, struct wl_input_device *input_device,
 {
 	struct input *input = data;
 	struct window *window = input->pointer_focus;
-	int location, pointer = POINTER_LEFT_PTR;
+	int pointer = POINTER_LEFT_PTR;
 
 	input->x = x;
 	input->y = y;
 	input->sx = sx;
 	input->sy = sy;
 
-	location = get_pointer_location(window, input->sx, input->sy);
-
 	if (window->motion_handler)
 		pointer = (*window->motion_handler)(window, input, time,
 						    x, y, sx, sy,