[CMake] BUILD_INTERFACE genex used even in install(EXPORT...

[Mueller-Roemer, Johannes Sebastian]

I am trying to add a library via it's variable(s) in an installed (static library) target, but BUILD_INTERFACE appears to be used for the generation of *-targets-*.cmake even when using install(EXPORT...), instead of INSTALL_INTERFACE:

CMakeLists.txt
[...]
target_link_libraries(${PROJECT_NAME} PUBLIC
                $<$<CONFIG:Debug>:$<BUILD_INTERFACE:\${Boost_COROUTINE_LIBRARY_DEBUG}>> $<$<NOT:$<CONFIG:Debug>>:$<BUILD_INTERFACE:\${Boost_COROUTINE_LIBRARY_RELEASE}>>
)
[...]
install(EXPORT ${PROJECT_NAME}-targets DESTINATION share/cmake)

produces a file containing:
IMPORTED_LINK_INTERFACE_LIBRARIES_RELEASE "${Boost_COROUTINE_LIBRARY_RELEASE}"

Which seems wrong (and since I had to use the variable in BUILD_INTERFACE I can no longer use it from other projects within the same Build

--
Johannes S. Mueller-Roemer, MSc
Wiss. Mitarbeiter - Interactive Engineering Technologies (IET)

Fraunhofer-Institut für Graphische Datenverarbeitung IGD
Fraunhoferstr. 5  |  64283 Darmstadt  |  Germany
Tel +49 6151 155-606  |  Fax +49 6151 155-139
johannes.mueller-roemer at igd.fraunhofer.de  |  www.igd.fraunhofer.de

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