--- src/glpmpl.h.orig	2009-10-02 14:11:34.000000000 -0300
+++ src/glpmpl.h	2009-10-02 14:11:50.000000000 -0300
@@ -103,7 +103,7 @@
 #define A_TUPLE         126   /* n-tuple */
 #define A_VARIABLE      127   /* model variable */
 
-#define MAX_LENGTH 100
+#define MAX_LENGTH 1000
 /* maximal length of any symbolic value (this includes symbolic names,
    numeric and string literals, and all symbolic values that may appear
    during the evaluation phase) */