Alan W. Irwin wrote:
> On 2009-06-06 19:36-0400 Hazen Babcock wrote:
>> I've moved the pyqt4 bindings into bindings/python/pyqt4 and I have started
>> in on trying to figure out how to get them built. I was able to create the
>> required config.py.in using the cmake file() command. Now I'm struggling to
>> get the "python config.py" command to happen. Is add_custom_command() the
>> right way to do this?
>
> Hi Hazen:
>
> I am glad you put the question on list since these build system details
> concerning add_custom_command (and add_custom_target) are important for all
> PLplot developers if they want to understand or modify our build system
>
> Here is what you have now:
>
> file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/config.py.in "")
> add_custom_command(
> OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/
> COMMAND python ${CMAKE_CURRENT_SOURCE_DIR}/config.py
> WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
> )
>
> That is close, but here
> is how I would replace that:
>
> add_custom_command(
> OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/config.py.in
> COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/config.py.in
> COMMAND python ${CMAKE_CURRENT_SOURCE_DIR}/config.py
> WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
> DEPENDS
> ${CMAKE_CURRENT_SOURCE_DIR}/config.py
> ${CMAKE_CURRENT_SOURCE_DIR}/plplot_pyqt.sip
> )
>
> add_custom_target(generate_pyqt_source
> DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/config.py.in
> )
Hi Alan,
Thanks for the help and suggestions! I also added:
COMMAND ${CMAKE_COMMAND} -E copy
${CMAKE_CURRENT_SOURCE_DIR}/plplot_pyqt.sip ${CMAKE_CURRENT_BINARY_DIR}/.
Since this seemed like the right thing to do to get the "python
config.py" command to work when executed in WORKING_DIRECTORY.
One result of executing "python config.py" is that it generates its own
Makefile in WORKING_DIRECTORY. This overwrites the Makefile that was
generated by CMake. What is the best way to handle this?
-Hazen
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