[CMake] appending srcs to custom_target, or doxygen support

[Mark Lohry]

perfect, thank you

On Wed, Jul 1, 2009 at 11:22 AM, Tyler Roscoe <tyler at cryptio.net> wrote:

> On Wed, Jul 01, 2009 at 11:03:10AM -0500, Mark Lohry wrote:
> > in ./src/lib1/cmakelists.txt I have:
> >
> > if(DOXYGEN_EXECUTABLE AND UNIX)
> >   IF(EXISTS ${PROJECT_SOURCE_DIR}/${DOXYGEN_CONFIG_FILE})
> >     message( "***** Doxygen config file found *****" )
> >     SET(DOXYFILE_FOUND true)
> >     ADD_CUSTOM_TARGET( doc ${DOXYGEN_EXECUTABLE}
> >       "${PROJECT_SOURCE_DIR}/${DOXYGEN_CONFIG_FILE}" )
> >     install(DIRECTORY ${CMAKE_SOURCE_DIR}/doc/ DESTINATION
> ${docdir}/html)
> >   ENDIF(EXISTS ${PROJECT_SOURCE_DIR}/${DOXYGEN_CONFIG_FILE})
> > endif(DOXYGEN_EXECUTABLE AND UNIX)
> >
> >
> > which works fine for just that one directory, but placing that same
> section
> > in ./src/lib2,3,4.. gives an error "target doc already defined". I'd
> rather
> > not have a custom doc target (make doc_lib1, make doc_lib2...) for each
> > library. So is there any facility to do something like  "if( exists
> > custom_target doc ) then append( command to doxy the next library)"?
>
> Look at if(TARGET ...) and add_custom_command(... APPEND). I'm not sure
> the APPEND part will work because there are issues with custom_commands
> across multiple directories (I don't remember the details, but the
> archives do).
>
> tyler
>
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