fix

Author: chleroy

tools/perf/arch/powerpc/util/header.c

@@ -17,7 +17,7 @@ static bool is_compat_mode(void)
 	u64 base_platform = getauxval(AT_BASE_PLATFORM);
 	u64 platform = getauxval(AT_PLATFORM);
 
-	if (!strcmp((char *)platform, (char *)base_platform))
+	if (!strcmp((char *)(long)platform, (char *)(long)base_platform))
 		return false;
 
 	return true;