--- a/frm/frm.h	Sat Jan 19 19:23:36 2019 +0000
+++ a/frm/frm.h	Sat Jan 19 19:25:06 2019 +0000
@@ -27,20 +27,21 @@ 
 #include <sys/types.h>
 #ifdef HAVE_TERMIOS_H
 # include <termios.h>
 #endif
 #include <sys/ioctl.h>
 #include <sys/stat.h>
 
 #ifdef HAVE_ICONV_H
 # include <iconv.h>
 #endif
+#include <limits.h>
 #ifndef MB_LEN_MAX
 # define MB_LEN_MAX 4
 #endif
 
 #include <mbswidth.h>
 
 #ifdef HAVE_FRIBIDI_FRIBIDI_H
 # include <fribidi/fribidi.h>
 #endif