[CMake] incrementally adding source file properties

[Eric Noulard]

2009/4/2 Bill O'Hara <billtohara at gmail.com>:
> Is it possible to incrementally add new properties to source files? In two
> parts of a large build there are cases where it'd be very convenient to be
> able to do this:
>
> set_source_file_properties(foo.c PROPERTIES COMPILE_FLAGS "-m32")
>
> set_source_file_properties(foo.c PROPERTIES COMPILE_FLAGS "-g")
>
> and have the properties be "-m32 -g". Right now it seems to instead just set
> it to "-g" and there seems not to be a way to read the properties and use
> the existing value as part of a new string?

What about
get_source_file_property(OLD_FLAGS foo.c COMPILE_FLAGS)
set_source_file_properties(foo.c PROPERTIES COMPILE_FLAGS "${OLD_FLAGS} -g") ?

Should be possible to implement a

update_source_file_properties(...)

which does the job.



-- 
Erk