CMake/Tests/RunCMake/CMP0041/CMP0041-OLD.cmake
Stephen Kelly 5838aba1aa Export: Report error on relative include with genex.
Diagnostics which check the sanity of exported include paths
previously skipped over any path containing a generator expression.

Introduce a policy to issue an error message in such cases.

The export files created in the OLD behavior are not usable, because
they contain relative paths or paths to the source or build location
which are not suitable for use on installation. CMake will report an
error on import.
2013-11-26 13:01:55 +01:00

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CMake

cmake_policy(SET CMP0041 OLD)
add_library(foo empty.cpp)
set_property(TARGET foo
PROPERTY INTERFACE_INCLUDE_DIRECTORIES
include/$<TARGET_PROPERTY:NAME>
${CMAKE_CURRENT_SOURCE_DIR}/include/$<TARGET_PROPERTY:NAME>
${CMAKE_CURRENT_BINARY_DIR}/include/$<TARGET_PROPERTY:NAME>
)
install(TARGETS foo EXPORT FooExport DESTINATION lib)
install(EXPORT FooExport DESTINATION lib/cmake)