cleanup ivars() related globals on program termination

src/frontend/misccoms.c

@@ -15,6 +15,7 @@ Author: 1985 Wayne A. Christopher, U. C. Berkeley CAD Group
 #include "variable.h"
 #include "plotting/graf.h"
 #include "display.h"
+#include "../misc/ivars.h"
 
 #ifdef HAVE_GNUREADLINE
 #include <readline/readline.h>
@@ -73,6 +74,9 @@ com_quit(wordlist *wl)
     DevSwitch(NULL);
 
     /* then go away */
+
+    destroy_ivars();
+
     byemesg();
     exit(exitcode);
 }

src/main.c

@@ -489,7 +489,7 @@ SIMinit(IFfrontEnd *frontEnd, IFsimulator **simulator)
 static void
 sp_shutdown(int exitval)
 {
-    cleanvars();
+    destroy_ivars();
 #ifdef PARALLEL_ARCH
      {
     Error("Fatal error in SPICE", -1);

src/misc/ivars.c

@@ -109,13 +109,12 @@ ivars(char *argv0)
 }
 
 void
-cleanvars(void)
+destroy_ivars(void)
 {
     tfree(News_File);
     tfree(Default_MFB_Cap);
     tfree(Help_Path);
     tfree(Lib_Path);
     tfree(Spice_Path);
-    if (Inp_Path) /* may be NULL in LINUX */
-        tfree(Inp_Path);
+    tfree(Inp_Path);
 }

src/misc/ivars.h

@@ -8,6 +8,6 @@
 
 
 void ivars(char*);
-void cleanvars(void);
+void destroy_ivars(void);
 
 #endif