-diff -urNp openvpn-2.4.0.orig/src/plugins/auth-pam/auth-pam.c openvpn-2.4.0/src/plugins/auth-pam/auth-pam.c
---- openvpn-2.4.0.orig/src/plugins/auth-pam/auth-pam.c 2016-12-26 11:51:00.000000000 +0000
-+++ openvpn-2.4.0/src/plugins/auth-pam/auth-pam.c 2017-02-10 07:39:15.426673734 +0000
-@@ -698,7 +698,7 @@ pam_server(int fd, const char *service,
- struct user_pass up;
+diff -urN openvpn-2.5.0.org/src/plugins/auth-pam/auth-pam.c openvpn-2.5.0/src/plugins/auth-pam/auth-pam.c
+--- openvpn-2.5.0.org/src/plugins/auth-pam/auth-pam.c 2020-10-28 08:25:23.000000000 +0100
++++ openvpn-2.5.0/src/plugins/auth-pam/auth-pam.c 2020-11-04 08:10:17.559124764 +0100
+@@ -894,7 +894,7 @@
+ char ac_file_name[PATH_MAX];
int command;
#ifdef USE_PAM_DLOPEN
- static const char pam_so[] = "libpam.so";