assorted warning clean-ups for x86_64, etc (Mikko T.)
diff --git a/progs/samples/loadppm.c b/progs/samples/loadppm.c
index b4b1b38..be056d6 100644
--- a/progs/samples/loadppm.c
+++ b/progs/samples/loadppm.c
@@ -37,7 +37,7 @@
 	exit(1);
     }
 
-    if (fscanf(fp, "%d %d", &result->sizeX, &result->sizeY) != 2)
+    if (fscanf(fp, "%lu %lu", &result->sizeX, &result->sizeY) != 2)
     {
 	fprintf(stderr, "Error loading image `%s'\n", filename);
 	exit(1);