Hello,
I have a question concerning the order in that transitiv dependencies
are resolved.
My target depends on a source file. This source file is generated by
an external tool by ADD_CUSTOM_COMMAND.
To to ensure the file is always up to date I used ADD_CUSTOM_COMMAND
with a phony target.
Example:
# generate source file
add_custom_command( OUTPUT __phony_target_name
COMMAND some_command_to_generate
ARGS -o __my_outfile.cpp
....
)
set_source_files_properties( __phony_target_name PROPERTIES SYMBOLIC TRUE )
set_source_files_properties( __my_outfile.cpp PROPERTIES GENERATED TRUE )
set_source_files_properties( __my_outfile.cpp PROPERTIES
OBJECT_DEPENDS ${__phony_target} )
add_executable( __my_target __my_outfile.cpp )
The problem is that it needs 2 compile runs to bring __my_outfile.cpp
up to date. In the first pass the file is generated but not compiled.
In the second run it gets compiled. As far as I understand the
dependencies I created are transitve and should work in a single
compile run.
target --> depends on
__my_outfile.obj --> depends on
__my_outfile.cpp --> depends on
__phony_target_name
Any idea why it isn't working?
regards
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