Hopefully suppress arm compilation warning

lib/termios.c

@@ -72,7 +72,7 @@ extern int errno;
 #endif
 struct termios_list
 {
-    char filename[80];
+    char filename[512];
     int my_errno;
     int interrupt;
     int event_flag;
@@ -1392,8 +1392,8 @@ serial_open()
 int win32_serial_open(const char *filename, int flags, ...)
 {
     struct termios_list *index;
-    char message[160];
+    char message[756];
-    char fullfilename[80];
+    char fullfilename[256];
 
     ENTER("serial_open");
 
@@ -1407,7 +1407,7 @@ int win32_serial_open(const char *filename, int flags, ...)
     }
     else
     {
-        strncpy(fullfilename, filename, sizeof(fullfilename) - 1);
+        strncpy(fullfilename, filename, sizeof(fullfilename)-1);
     }
 
     if (port_opened(fullfilename))

tests/rotctl_parse.c

@@ -508,7 +508,7 @@ int rotctl_parse(ROT *my_rot, FILE *fin, FILE *fout, char *argv[], int argc,
 {
     int retcode;            /* generic return code from functions */
     unsigned char cmd;
-    struct test_table *cmd_entry;
+    struct test_table *cmd_entry = NULL;
     int ext_resp = 0;
     char resp_sep = '\n';
 
@@ -1448,7 +1448,9 @@ int rotctl_parse(ROT *my_rot, FILE *fin, FILE *fout, char *argv[], int argc,
         }
         else
         {
-            fprintf(fout, "%s: error = %s\n", cmd_entry->name, rigerror(retcode));
+            if (cmd_entry != NULL && cmd_entry->name != NULL) {
+              fprintf(fout, "%s: error = %s\n", cmd_entry->name, rigerror(retcode));
+            }
         }
     }
     else