--- ../global.c.orig	2021-11-17 20:03:46.273607977 +0000
+++ ./src/global.c	2021-11-17 20:04:24.600257641 +0000
@@ -185,7 +185,7 @@
 bool to_stdout_option = false;
 
 /* The name this program was run with.  */
-char *program_name;
+extern char *program_name;
 
 /* A pointer to either lstat or stat, depending on whether
    dereferencing of symlinks is done for input files.  */
