| enable_language(C) |
| |
| if(NOT CMAKE_SHARED_LIBRARY_RPATH_ORIGIN_TOKEN) |
| if(CMAKE_C_PLATFORM_ID STREQUAL "Linux") |
| # Sanity check for platform that is definitely known to support $ORIGIN. |
| message(FATAL_ERROR "Platform fails to report relative RPATH support") |
| else() |
| message(STATUS "Platform does not support relative RPATHs, skipping") |
| endif() |
| return() |
| endif() |
| set(CMAKE_BUILD_RPATH_USE_ORIGIN ON) |
| |
| function(CheckRpath target rpath) |
| add_custom_command( |
| TARGET ${target} |
| POST_BUILD |
| COMMAND ${CMAKE_COMMAND} -Dfile=$<TARGET_FILE:${target}> -Drpath=${rpath} |
| -P "${CMAKE_CURRENT_SOURCE_DIR}/RelativeCheck.cmake" |
| VERBATIM |
| ) |
| endfunction() |
| |
| if(CMAKE_C_COMPILER_ID STREQUAL "XL" AND CMAKE_BINARY_DIR MATCHES " ") |
| # XL 16.1.0.0 fails building the library if the output path contains a space. |
| set(externDir) |
| message(STATUS "Skipping external library test because of a toolchain bug") |
| else() |
| get_filename_component(externDir "${CMAKE_BINARY_DIR}" DIRECTORY) |
| set(externDir "${externDir}/Relative-extern") |
| endif() |
| |
| add_library(utils SHARED A.c) |
| add_library(utils-sub SHARED A.c) |
| set_property(TARGET utils-sub PROPERTY LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/libs) |
| if(externDir) |
| add_library(utils-extern SHARED A.c) |
| set_property(TARGET utils-extern PROPERTY LIBRARY_OUTPUT_DIRECTORY ${externDir}) |
| endif() |
| |
| add_executable(main main.c) |
| target_link_libraries(main utils) |
| CheckRpath(main "\$ORIGIN") |
| |
| add_executable(main-norel main.c) |
| target_link_libraries(main-norel utils) |
| set_property(TARGET main-norel PROPERTY BUILD_RPATH_USE_ORIGIN OFF) |
| CheckRpath(main-norel "${CMAKE_CURRENT_BINARY_DIR}") |
| |
| add_executable(mainsub main.c) |
| target_link_libraries(mainsub utils) |
| set_property(TARGET mainsub PROPERTY RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/bin) |
| CheckRpath(mainsub "\$ORIGIN/../") |
| |
| add_executable(main-sub main.c) |
| target_link_libraries(main-sub utils-sub) |
| CheckRpath(main-sub "\$ORIGIN/libs") |
| |
| add_executable(mainsub-sub main.c) |
| target_link_libraries(mainsub-sub utils-sub) |
| set_property(TARGET mainsub-sub PROPERTY RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/bin) |
| CheckRpath(mainsub-sub "\$ORIGIN/../libs") |
| |
| if(externDir) |
| # Binaries linking to libraries outside the build tree should have an absolute RPATH. |
| add_executable(main-extern main.c) |
| target_link_libraries(main-extern utils-extern) |
| CheckRpath(main-extern "${externDir}") |
| endif() |
