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enable_language(CXX)
add_library(A OBJECT a.cxx)
add_library(B STATIC a.c $<TARGET_OBJECTS:A>)
# Verify that object library languages are propagated.
export(TARGETS B NAMESPACE Exp FILE BExport.cmake)
include(${CMAKE_CURRENT_BINARY_DIR}/BExport.cmake)
get_property(configs TARGET ExpB PROPERTY IMPORTED_CONFIGURATIONS)
foreach(c ${configs})
get_property(langs TARGET ExpB PROPERTY IMPORTED_LINK_INTERFACE_LANGUAGES_${c})
list(FIND langs CXX pos)
if(${pos} LESS 0)
message(FATAL_ERROR "Target export does not list object library languages.")
endif()
endforeach()
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