updated for version 7.3.187
Problem: The RISC OS port has obvious errors and is not being maintained.
Solution: Remove the RISC OS files and code.
diff --git a/src/ascii.h b/src/ascii.h
index b920d41..5256fc3 100644
--- a/src/ascii.h
+++ b/src/ascii.h
@@ -183,11 +183,6 @@
# define PATHSEP psepc
# define PATHSEPSTR pseps
#else
-# ifdef RISCOS
-# define PATHSEP '.'
-# define PATHSEPSTR "."
-# else
-# define PATHSEP '/'
-# define PATHSEPSTR "/"
-# endif
+# define PATHSEP '/'
+# define PATHSEPSTR "/"
#endif