[llvm-commits] [PATCH] Teach CMake to only touch tablegen-generated files if anything actually changed.

[Óscar Fuentes]

Francois Pichet <pichet2000 at gmail.com> writes:

> I don't know if this patch is the problem but there is problem with
> CMake dependency on VS2008 since 2-3 ago. When I select the the
> "clang-test" project and build (to run the test). The project
> LLVMX86CodeGen always get recompiled even if nothing has changed. This
> is annoying as I run the test very very often. Now i have to revert
> back to using the command line to run the clang lit test.

Please open a bug report on Bugzilla an attach the full contents of the
Output window after building the `clang-test' target.

(At first I sort of reproduced the problem, but after killing some
dangling MSBuild.exe processes with the task manager it worked fine. The
Output window contained an error message saying something about being
unable to read a tracking file because it was being used by another
process.)