diff --git a/stdlib/bsearch.c b/stdlib/bsearch.c
index ebfcd51..ce878ab 100644
--- a/stdlib/bsearch.c
+++ b/stdlib/bsearch.c
@@ -13,22 +13,22 @@
 
 void * bsearch(const void * key, const void * base, size_t nel, size_t width,
                int (*compar)(const void *, const void*)) {
-  void * left; 
-  void * right;
-  void * mid;
+  long int left; 
+  long int right;
+  long int mid;
 
   if(nel == 0 || base == NULL) {
     return NULL;
   }
 
-  left = base;
-  right = base + (nel * width);
+  left = (long int) base;
+  right = (long int) (base + (nel * width));
 
   while(left <= right) {
     mid = (left + right) / 2;
-    int t = compar(key, mid);
+    int t = compar(key, (void *) mid);
     if(t == 0) {
-      return mid;
+      return (void *) mid;
     }
     else if(t < 0) {
       right = mid - width;