remove some compiler warnings

src/spicelib/analysis/optran.c

@@ -75,7 +75,7 @@ void com_optran(wordlist* wl) {
     int optrancom;
     static bool dataset = FALSE;
     static bool getdata = FALSE;
-    static unsigned int opiter = 1;
+    static unsigned char opiter = 1;
     static int ngminsteps = 1;
     static int nsrcsteps = 1;
 

src/spicelib/devices/cpl/cplhash.c

@@ -38,6 +38,9 @@ void mem_delete(void);
 int memsaved(void *ptr);
 void memdeleted(const void *ptr);
 
+void my_free_func(void* data);
+void my_key_free(void* key);
+
 int gc_is_on = 0;
 
 /* add some debugging printout */