Index: src/pspg.c
--- src/pspg.c.orig	2017-11-16 07:49:15.000000000 +0100
+++ src/pspg.c	2017-11-16 09:46:10.382955000 +0100
@@ -10,6 +10,9 @@
  *
  *-------------------------------------------------------------------------
  */
+#ifdef __FreeBSD__
+#define _WITH_GETLINE
+#endif
 #include <curses.h>
 #include <errno.h>
 #include <getopt.h>