[CMake] One source file, different arch

[Glenn Coombs]

Something like this should do the trick:

add_exectuable(myExe32 A.c B.c C.c)
add_exectuable(myExe64 A.c B.c D.c)

set_target_properties(myExe32 PROPERTIES COMPILE_FLAGS -m32)
set_target_properties(myExe32 PROPERTIES LINK_FLAGS -m32)

That assumes that the default setup would build 64-bit executables and you
just override that default with the necessary gcc switches to force a 32-bit
compile and link for the one target.  You would need something more
complicated to get it to work with both Visual Studio and linux/gcc but the
principle is the same.

--
Glenn


On 1 July 2011 02:14, 邓尧 <torshie at gmail.com> wrote:

> Hi,
>
> I'm new to CMake. My project is a little different from the projects found
> in the tutorials. I have to compile some of the source files into two
> different archs(32-bit & 64-bit). It's like the following:
>   Given 4 source files: A.c, B.c, C.c, D.c, I need to compile a 32-bit
> executable with source file A.c, B.c and C.c, I also need to compile a
> 64-bit executable with source file A.c B.c and D.c.
> How to write the CMake script in this situation?
>
> Thanks
>
> -Yao
>
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