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+/* global.h: The global variables for bc. */
+
+/* This file is part of bc written for MINIX.
+ Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License , or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ You may contact the author by:
+ e-mail: phil@cs.wwu.edu
+ us-mail: Philip A. Nelson
+ Computer Science Department, 9062
+ Western Washington University
+ Bellingham, WA 98226-9062
+
+*************************************************************************/
+
+
+/* For the current "break level" and if statements. */
+EXTERN int break_label;
+EXTERN int if_label;
+EXTERN int continue_label;
+
+/* Label numbers. */
+EXTERN int next_label;
+
+/* Used for "code" generation. */
+EXTERN char genstr[80];
+EXTERN int out_count;
+EXTERN char did_gen;
+
+/* Interactive and other flags. */
+EXTERN char interactive;
+EXTERN char compile_only;
+EXTERN char use_math;
+EXTERN char warn_not_std;
+EXTERN char std_only;
+
+/* global variables for the bc machine. All will be dynamic in size.*/
+/* Function storage. main is (0) and functions (1-f_count) */
+
+EXTERN bc_function *functions;
+EXTERN char **f_names;
+EXTERN int f_count;
+
+/* Variable stoarge and reverse names. */
+
+EXTERN bc_var **variables;
+EXTERN char **v_names;
+EXTERN int v_count;
+
+/* Array Variable storage and reverse names. */
+
+EXTERN bc_var_array **arrays;
+EXTERN char **a_names;
+EXTERN int a_count;
+
+/* Execution stack. */
+EXTERN estack_rec *ex_stack;
+
+/* Function return stack. */
+EXTERN fstack_rec *fn_stack;
+
+/* Other "storage". */
+EXTERN int i_base;
+EXTERN int o_base;
+EXTERN int scale;
+EXTERN char c_code;
+EXTERN int out_col;
+EXTERN char runtime_error;
+EXTERN program_counter pc;
+
+/* Input Line numbers and other error information. */
+EXTERN int line_no;
+EXTERN int had_error;
+
+/* For larger identifiers, a tree, and how many "storage" locations
+ have been allocated. */
+
+EXTERN int next_array;
+EXTERN int next_func;
+EXTERN int next_var;
+
+EXTERN id_rec *name_tree;
+
+/* For error message production */
+EXTERN char **g_argv;
+EXTERN int g_argc;
+EXTERN char is_std_in;
+
+/* defined in number.c */
+extern bc_num _zero_;
+extern bc_num _one_;
+
+/* For use with getopt. Do not declare them here.*/
+extern int optind;
+