[cmake-developers] Appending to LINK_FLAGS property of a target doesn't seem to work correctly

[Dan Liew]

On 3 March 2016 at 22:02, Nils Gladitz <nilsgladitz at gmail.com> wrote:
> On 03.03.2016 22:57, Dan Liew wrote:
>>
>> Hi,
>>
>> I noticed recently is you do something like this
>>
>> add_executable(foo a.cpp b.cpp)
>> set_property(TARGET shell APPEND PROPERTY LINK_FLAGS "-fopenmp")
>> set_property(TARGET shell APPEND PROPERTY LINK_FLAGS "-static")
>>
>> then the flags that end up being passed to the compiler during linking
>> are like this.
>>
>> gcc -g -O0 -fopenmp;-static
>>
>> It looks like when using the property with APPEND it becomes a list
>> but when emitted the list isn't expanded properly. I noticed this
>> using CMake 3.4.3 using the "Unix Makefile" generator.
>>
>> Is this intentional or is this a bug?
>
>
> LINK_FLAGS is not a list property; flags have to be whitespace separated.
> You can use APPEND_STRING instead of APPEND for this.

Thanks for this. Shouldn't the fact that ``LINK_FLAGS`` is a string
property and not a list property be in the ``cmake-properties``
documentation? The version of the documentation for my version of
CMake (3.4.3) doesn't say what the property type is.

Thanks,
Dan.