Make syncterm_version const

src/syncterm/syncterm.c

@@ -83,7 +83,7 @@ enum {
 #include "uifcinit.h"
 #include "window.h"
 
-char *syncterm_version = "SyncTERM 1.2b"
+const char *syncterm_version = "SyncTERM 1.2b"
 
 // #define ALPHA
 #ifdef _DEBUG

src/syncterm/syncterm.h

@@ -82,7 +82,7 @@ struct syncterm_settings {
 };
 
 extern char                    *inpath;
-extern char                    *syncterm_version;
+extern const char              *syncterm_version;
 extern struct vmem_cell        *scrollback_buf;
 extern uint32_t                *scrollback_fbuf;
 extern uint32_t                *scrollback_bbuf;