Add a BUILD_RPATH target property specifying build-tree RPATH entries

Users may need to add custom `RPATH` entries to be able to run binaries
from their build tree without setting `LD_LIBRARY_PATH`.  Provide a way
to do this that does not affect the install-tree `RPATH`.

1 files changed, 12 insertions, 3 deletions

diff --git a/Tests/MacRuntimePath/A/CMakeLists.txt b/Tests/MacRuntimePath/A/CMakeLists.txt
index ade0a3c..bf937e6 100644
--- a/Tests/MacRuntimePath/A/CMakeLists.txt
+++ b/Tests/MacRuntimePath/A/CMakeLists.txt
@@ -40,21 +40,30 @@ target_link_libraries(test3 framework)
 add_executable(test4 test1.cpp)
 target_link_libraries(test4 shared2)
 
+# executable to test a shared library dependency with build rpath
+add_executable(test5 test1.cpp)
+
+# avoid linking by 'target_link_libraries' so CMake
+# will not be able to set correct RPATH automatically
+add_dependencies(test5 shared)
+target_link_libraries(test5 "$<TARGET_FILE:shared>")
+set_target_properties(test5 PROPERTIES BUILD_RPATH "@loader_path/../lib")
+
 set_target_properties(shared shared2 framework PROPERTIES
   LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib")
-set_target_properties(test1 test2 test3 test4 PROPERTIES
+set_target_properties(test1 test2 test3 test4 test5 PROPERTIES
   RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin")
 foreach(config ${CMAKE_CONFIGURATION_TYPES})
   string(TOUPPER ${config} CONFIG)
   set_target_properties(shared shared2 framework PROPERTIES
     LIBRARY_OUTPUT_DIRECTORY_${CONFIG}
       "${CMAKE_CURRENT_BINARY_DIR}/${config}/lib")
-  set_target_properties(test1 test2 test3 test4 PROPERTIES
+  set_target_properties(test1 test2 test3 test4 test5 PROPERTIES
     RUNTIME_OUTPUT_DIRECTORY_${CONFIG}
       "${CMAKE_CURRENT_BINARY_DIR}/${config}/bin")
 endforeach()
 
-foreach(test test1 test2 test3 test4)
+foreach(test test1 test2 test3 test4 test5)
   add_custom_target(${test}_run  ALL
     COMMAND ${test}
     DEPENDS ${test}