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--- plot.c.orig Sat Mar 14 23:22:20 1992
+++ plot.c Sun Jan 21 21:06:06 2007
@@ -10,16 +10,31 @@
*/
#include <stdio.h>
+#include <string.h>
#include <math.h>
#include "screen.h"
-extern char *strcpy();
+static plt_select_fields();
+static plt_turn_off();
+static plt_turn_on();
+static plt_file();
+static plot_cartesian(FILE *pfp);
+static plot_polar(FILE *pfp);
+
+#if (defined(__unix__) || defined(unix)) && !defined(USG)
+#include <sys/param.h>
+#endif
+
+#if defined(VMS) || defined(unix)
+#include <errno.h>
+#endif
#ifdef VMS
#include <perror.h>
-#include <errno.h>
#else
+#ifndef BSD
extern char *sys_errlist[];
+#endif
extern errno;
#endif
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