add: extern function in discspan

diff --git a/discspan.c b/discspan.c
index 6876f35fae62c65bb72c1c7918b9e6aae8c6e96c..15eeef5cc54e03c3b42686850ab1cd662aed6b87 100644 (file)
--- a/discspan.c
+++ b/discspan.c
@@ -9,6 +9,7 @@
 #include "help.h"
 
 extern void useage();
+extern file_size_t * read_input_file();
 
 int struct_array_length = 0;
 unsigned long long split = 0;