PAM_AUTHTOK_RECOVERY_ERR is not defined by older Linux versions (SUSE
Linux Enterprise 9 and RedHat Enterprise 4).
Patch suggested by Philipp Thomas <pth at suse dot de>.
#include <libintl.h>
#endif
-#ifndef LINUX
+#if defined(LINUX)
+
+/* newer versions of PAM have this in _pam_compat.h */
+#ifndef PAM_AUTHTOK_RECOVERY_ERR
+#define PAM_AUTHTOK_RECOVERY_ERR PAM_AUTHTOK_RECOVER_ERR
+#endif
+
+#else /* !LINUX */
/* Solaris always uses dynamic pam modules */
#define PAM_EXTERN extern