[CMake] set_property imported_location_release

[Marc CHEVRIER]

Properties IMPORTED_LOCATION* do not support generator expressions.

Generally speaking, if a property supports generator expression, it is explicitly specified in documentation.
Le 21 déc. 2018 à 13:07 +0100, Lars <laasunde at hotmail.com>, a écrit :
> Hello,
>
> Trying to import an external library but having some issue with setting imported_location_release property.
>
> Basically I have config file which does this;
> add_library(foo STATIC IMPORTED)
> set_property(target foo APPEND PROPERTY
>    interface_include_directories
>     "$<BUILD_INTERFACE:${foot_root}/path>"
>     "$<INSTALL_INTERFACE:${foo_root}/foo>")
>
> set_property(TARGET foo APPEND PROPERTY
>   IMPORTED_LOCATION_RELEASE
>     $<$<CXX_COMPILER_ID:GNU>:${foo_root}/lib/release/foo.a>)
>
> The imported target is used in a target_link_libraries method;
> target_link_libraries(an_application foo)
>
> Running CMake 3.6.1 does not produce any warnings. Running make I get a "target pattern contains no '%'" error message with a reference to a Build.make file.
>
> The Build.make contains the string " $<$<CXX_COMPILER_ID:GNU>:/tmp/prototype/foo/lib/release/foo.a".  We did not expect to see the generator expression in the Build.make file.
>
> Does set_property support generator expression in this context? What are we doing wrong?
>
> Appreciate any help :-)
>
> king regards, Lars
>
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