[CMake] Portable way to locate built executables.

[Nils Gladitz]

On 18.05.2014 19:24, Rick McGuire wrote:
> We have a project that builds some executables, then uses those 
> executables to build some additional build artifacts.  We have this 
> working well using makefiles on Windows and various unix variants.  I 
> decided it would be nice to try doing a build using a Visual Studio 
> project.  The various compile/link steps worked great, but any step 
> that needed to use one of the built executables was failing to find 
> the executables.  An examination of the build tree revealed that 
> Visual Studio was placing the executables in bin\Debug rather than the 
> expected bin directory.
>
> The command we're using is specified as:
>
> add_custom_command(OUTPUT ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/rexx.img
>             COMMAND ./rexximage
>             DEPENDS rexximage rxapi rexxutil ${image_class_files} ${platform_rexx_img_depends}
>             WORKING_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
> where we're assuming the rexximage.exe file will be in the CMAKE_RUNTIME_OUTPUT_DIRECTORY, which is specified as ${CMAKE_CURRENT_BINARY_DIR}/bin.  Is there a more appropriate method we should be doing to locate this executable that will work using both the NMake build process and a Visual Studio project?

Try "COMMAND rexximage".
If "rexximage" is an executable target (as created by add_executable()) 
add_custom_command() will substitute the actual command.

Nils
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