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cmake_minimum_required (VERSION 3.15)
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project(RuntimePath C)
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# Add a simple chain of shared libraries that must be found.
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add_library(foo1 SHARED foo1.c)
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set_property(TARGET foo1 PROPERTY OUTPUT_NAME foo)
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set_property(TARGET foo1 PROPERTY LIBRARY_OUTPUT_DIRECTORY A)
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add_library(bar1 SHARED bar1.c)
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set_property(TARGET bar1 PROPERTY OUTPUT_NAME bar)
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set_property(TARGET bar1 PROPERTY VERSION 1)
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set_property(TARGET bar1 PROPERTY LIBRARY_OUTPUT_DIRECTORY B)
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target_link_libraries(bar1 foo1)
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add_executable(RuntimePath main.c)
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target_link_libraries(RuntimePath bar1)
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# Add a library that provides a conflicting location to make sure
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# rpath ordering works.
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add_library(foo2 SHARED foo2.c)
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set_property(TARGET foo2 PROPERTY OUTPUT_NAME foo)
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set_property(TARGET foo2 PROPERTY LIBRARY_OUTPUT_DIRECTORY B)
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# Add a library that would provide a conflicting location if not for
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# soname analysis in rpath ordering. This will also break the old
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# link directory ordering to make sure files are linked with full
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# paths.
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if(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG)
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add_library(bar2 SHARED bar2.c)
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set_property(TARGET bar2 PROPERTY OUTPUT_NAME bar)
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set_property(TARGET bar2 PROPERTY LIBRARY_OUTPUT_DIRECTORY A)
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target_link_libraries(bar2 foo2)
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endif()
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# Add a library that is missing the rpath for its dependency.
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add_library(bar1_no_rpath SHARED bar1.c)
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set_property(TARGET bar1_no_rpath PROPERTY LIBRARY_OUTPUT_DIRECTORY B)
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set_property(TARGET bar1_no_rpath PROPERTY SKIP_BUILD_RPATH 1)
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target_link_libraries(bar1_no_rpath PRIVATE foo1)
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# Add an executable linking to the library with a missing dependency rpath.
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# CMake should generate the proper rpath-link flag to find it at build time.
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add_executable(main_with_bar1_no_rpath main.c)
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target_link_libraries(main_with_bar1_no_rpath bar1_no_rpath)
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