Export the workpadding char in miner.h

cgminer.c

@@ -1686,7 +1686,7 @@ static void update_gbt(struct pool *pool)
 	curl_easy_cleanup(curl);
 }
 
-static char *workpadding = "000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000";
+char *workpadding = "000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000";
 
 static void gen_gbt_work(struct pool *pool, struct work *work)
 {

miner.h

@@ -1036,6 +1036,7 @@ extern char *current_fullhash;
 extern double current_diff;
 extern uint64_t best_diff;
 extern struct timeval block_timeval;
+extern char *workpadding;
 
 #ifdef HAVE_OPENCL
 typedef struct {