[CMake] compiling idl files

[Guilherme Balena Versiani]

AFAIK, you just need to add these files as source ones (I didn't tested 
to make sure, but I think it do the job)...

If you are talking about XPCOM IDLs, then you need to use 
ADD_CUSTOM_COMMAND, in a similar way as you do for .y and .l files 
(yacc/flex), put these IDL files as a dependecy for each .h file 
generated and mark that .h files as 'generated', so cmake does not 
complain the missing headers (if you like to add the generated headers 
as source ones). I have a 'MacroAddInterfaces.cmake' file in my own 
project with something like:

----
# MACRO_ADD_INTERFACES(idl_files...)

# Copyright (c) 2007, Guilherme Balena Versiani, <guibv at comunip.com.br>
#
# Redistribution and use is allowed according to the terms of the BSD 
license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.

MACRO (MACRO_ADD_INTERFACES)

  FOREACH(_in_FILE ${ARGN})

    GET_FILENAME_COMPONENT(_out_FILE ${_in_FILE} NAME_WE)
    GET_FILENAME_COMPONENT(_in_PATH ${_in_FILE} PATH)

    ADD_CUSTOM_COMMAND(
      OUTPUT ${XPCOM_INTERFACES_DIR}/${_out_FILE}.h
      DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${_in_FILE}
      COMMAND ${XPIDL_EXECUTABLE} -m header ${VXIDL_INCLUDES} -I 
${CMAKE_CURRENT_SOURCE_DIR}/${_in_PATH} -o ${_out_FILE} 
${CMAKE_CURRENT_SOURCE_DIR}/${_in_FILE}
      WORKING_DIRECTORY ${XPCOM_INTERFACES_DIR}
    )

    MACRO_ADD_FILE_DEPENDENCIES(
      ${XPCOM_INTERFACES_DIR}/${_out_FILE}.h
      ${CMAKE_CURRENT_SOURCE_DIR}/${_in_FILE}
    )

    SET_SOURCE_FILES_PROPERTIES(
      ${XPCOM_INTERFACES_DIR}/${_out_FILE}.h
      PROPERTIES
      GENERATED TRUE
    )

  ENDFOREACH(_in_FILE ${ARGN})

ENDMACRO (MACRO_ADD_INTERFACES)

Regards,

Guilherme Balena Versiani.


Jon W wrote:
> Does anybody have a CMakelists.txt example on how to properly compile
> idl files into visual studio projects?  I'm not sure if I need to use
> ADD_CUSTOM_COMMAND or just list the idl files in the sources, etc..
>
> Thanks,
> Jon
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