Compiled file is now deleted initially only if it existed

matl_compile.m

@@ -278,12 +278,14 @@
 
 % Write to file:
 
-delete(cOutFile) % even though `fwrite` discards the file's previous contents, and there's a `clear`
-% later, I delete the file initially here. I do it just in case: at some point I've
-% seen Octave run an old version of the compiled file after changing the source code (which produces
-% a new compiled file). I think this must a a file cache thing. (Even accidentally deleting a file
-% before attemtping to run it sometimes resulted in a successful run!) I'm not sure how helpful
-% deleting the file will be, though.
+if exist(cOutFile,'file')
+    delete(cOutFile) % even though `fwrite` discards the file's previous contents, and there's a `clear`
+    % later, I delete the file initially here. I do it just in case: at some point I've
+    % seen Octave run an old version of the compiled file after changing the source code (which produces
+    % a new compiled file). I think this must a a file cache thing. (Even accidentally deleting a file
+    % before attemtping to run it sometimes resulted in a successful run!) I'm not sure how helpful
+    % deleting the file will be, though.
+end
 fid = fopen(cOutFile,'w');
 for n = 1:numel(C)
     if ispc % Windows