[CMake] Passing empty arguments to add_custom_command

[abid rahman]

Hello,

I need to execute following  command with add_custom_command:
    *python test.py "" src dst*

The first argument is empty. Sometimes it may have some text. So Python
process the args as [test.py, "", src, dst]. But when I do the same with
add_custom_command, the empty argument is not considered, instead src is
considered as second argument.

I did it as follows:


*add_custom_command(*

*    OUTPUT ${some_files}*

*    COMMAND ${PYTHON_EXECUTABLE} test.py "" ${src} ${dst}*
*    DEPENDS ${....... all deps ......} )*

So what is the best method to pass empty arguments to cmake
add_custom_command?
Abid K.
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