[CMake] Installing results of ADD_CUSTOM_COMMAND

[Troels Frimor]

Hi,

I have to do the exact same thing in our project. Now it works fine, and 
the only thing I can see your are missing is to set the source as generated:

SET_SOURCE_FILES_PROPERTIES(${IDL_HEADER_FILES} PROPERTIES GENERATED true)

and then you should be able to:

INSTALL_FILES(/headers FILES ${IDL_HEADER_FILES})

with best regards,
Troels

Alex Brooks wrote:
> Hi,
> 
> I have a bit of a problem using cmake for IDL files.
> 
> I used ADD_CUSTOM_COMMAND to generate .h/.cpp files from .idl files:
> 
> FOREACH ( SUFFIX ${IDL_SUFFIXES} )
>       STRING( REGEX REPLACE "\\.idl" ${SUFFIX} OUTPUT "${IDL_SOURCE}" )
>       ADD_CUSTOM_COMMAND(
>         OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT}
>         COMMAND ${TAO_IDL}
>         ARGS ${CMAKE_CURRENT_SOURCE_DIR}/${IDL_SOURCE} ${TAO_IDL_ARGS}
>         DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${IDL_SOURCE}
>         )
> 	...
> 
> The .cpp files are then compiled into a library and marked for
> installation:
> 
> ADD_LIBRARY( ${LIB_NAME} ${IDL_CPP_FILES} ${HUMAN_SOURCE_LIST} )
> 
> I also want to install the .h files.
> 
> I tell cmake to install the header files with:
> 
> FOREACH ( FILE ${IDL_HEADER_FILES} )
>     INSTALL_FILES( /include/orca ${FILE} )
> ENDFOREACH ( FILE ${IDL_HEADER_FILES} )
> 
> The problem is that cmake can't find the IDL_HEADER_FILES when it is run
> (because they're only generated from .idl later, when 'make' is run).
> 
> The only way I've found to make it work correctly is to do:
> 'cmake .; make; cmake .; make install'
> 
> The second 'cmake .' can see the generated header files and creates the
> correct install rules.  There's gotta be a better way of doing this
> though -- can anyone offer any suggestions?
> 
> 
> Thanks,
> 
> Alex
> 
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