Building a standalone exe with external compiler in R2012b

I'm trying to build a Matlab 2012b project into a standalone application using Visual Studio 2008 as an external compiler. My compiler choice seems to be ignored; even if I use mbuild -setup to select Visual Studio but then "disable" VS by renaming its folder, the executable is being built, although the build should fail.

The command line I'm using is mcc -v -R nojvm -T compile:exe -e MyApp.

I have been using this method a while ago with R2007b. Has the support for building standalone applications with external compilers been discontinued since then? I found a few vague hints that may indicate so (e.g., http://www.mathworks.com/help/releases/R2012a/toolbox/compiler/f6-22535.html#bsgpsed-1), but it would be quite disappointing.

If anybody can comment on this, I will very much appreciate.

[Bob Dart]

This is a good question. Have you figured this out?