@@ -, +, @@ 
  ld: ld-insn.o:sim/ppc/ld-insn.h:221: multiple definition of
  `max_model_fields_len'; igen.o:sim/ppc/ld-insn.h:221: first defined here
--- a/sim/ppc/ld-insn.c	
+++ a/sim/ppc/ld-insn.c	
@@ -28,6 +28,24 @@ 
 
 #include "igen.h"
 
+static model *last_model;
+
+static insn *last_model_macro;
+static insn *last_model_function;
+static insn *last_model_internal;
+static insn *last_model_static;
+static insn *last_model_data;
+
+model *models;
+
+insn *model_macros;
+insn *model_functions;
+insn *model_internal;
+insn *model_static;
+insn *model_data;
+
+int max_model_fields_len;
+
 static void
 update_depth(insn_table *entry,
 	     lf *file,
--- a/sim/ppc/ld-insn.h	
+++ a/sim/ppc/ld-insn.h	
@@ -200,25 +200,15 @@ extern insn_table *load_insn_table
  table_include *includes,
  cache_table **cache_rules);
 
-model *models;
-model *last_model;
+extern model *models;
 
-insn *model_macros;
-insn *last_model_macro;
+extern insn *model_macros;
+extern insn *model_functions;
+extern insn *model_internal;
+extern insn *model_static;
+extern insn *model_data;
 
-insn *model_functions;
-insn *last_model_function;
-
-insn *model_internal;
-insn *last_model_internal;
-
-insn *model_static;
-insn *last_model_static;
-
-insn *model_data;
-insn *last_model_data;
-
-int max_model_fields_len;
+extern int max_model_fields_len;
 
 extern void insn_table_insert_insn
 (insn_table *table,
--