> > > in our code base we would like to add a warning compilation flags. > Nevertheless, this flag prevents us from compiling a few targets so we > would like to remove this flag for the given targets. > > Since I don't want to *add* a compilation flags but remove one, I would > like to retrieve the properties of the target > (get_target_property(my_compilation_flags TARGET COMPILE_FLAGS)), and > then modify those and use it to set the properties of the target. >
Instead of removing, have you tried appending the -Wno-fubar flag that turns back off these specific warnings for these specific files? With gcc for instance: https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html "Each of these specific warning options also has a negative form beginning ‘-Wno-’ to turn off warnings; for example, -Wno-implicit. [...] For options of the same specificity, the last one takes effect"
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