[CMake] Generated file dependency
Sergey Rudchenko
sergey.rudchenko at gmail.com
Thu Apr 23 06:48:45 EDT 2009
On Thu, 2009-04-23 at 13:37 +0300, Nikolay Mitev wrote:
> Hi
>
> I have the following situation:
>
> files: test.cpp test.h
>
> I want to process the file test.cpp with a custom pre-processor which
> will generate, say, test.ii.cpp which will get compiled into
> libtest.a. test.cpp just includes test.h.
>
> This is my CMakeLists.txt file:
>
> cmake_minimum_required(VERSION 2.6)
>
> add_custom_command (OUTPUT test.ii.cpp
> COMMAND preprocess test.cpp test.ii.cpp
> DEPENDS test.cpp
> COMMENT "Creating test.ii.cpp"
> VERBATIM)
>
> add_library (test test.ii.cpp)
>
> All dandy, but when I modify test.h the preprocessing step is not run,
> but just the compile step for test.ii.cpp. How can I make it so, that
> when the header is modified the preprocessing and the compilation
> steps are both run?
Did you try to list the test.h in the DEPENDS list?
Sergey
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