getting relocatable packaging working on mac

Signed-off-by: Alex McCaskey <mccaskeyaj@ornl.gov>

CMakeLists.txt

@@ -19,6 +19,9 @@ message(STATUS "C++ version ${CXX_STANDARD} configured.")
 # Make sure all build libraries have reference to their dependents
 set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
 set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+  set(CMAKE_MACOSX_RPATH ON)
+endif()
 
 include(ExternalProject)
 

python/CMakeLists.txt

@@ -6,8 +6,11 @@ set(CMAKE_CXX_STANDARD 11)
 message(STATUS "C++ version ${CXX_STANDARD} configured.")
 
 # Make sure all build libraries have reference to their dependents
-set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
+set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib;@loader_path@/lib")
 set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+  set(CMAKE_MACOSX_RPATH ON)
+endif()
 
 #find_package(PythonLibs)
 #if(PythonLibs_FOUND)
@@ -50,6 +53,8 @@ if (NOT cppus_has_d_suffix)
 endif()
 target_link_libraries(pyxacc PRIVATE xacc xacc-quantum-gate xacc-quantum-aqc ${CppUsLib} ${Boost_LIBRARIES} cpprest ${OPENSSL_LIBRARIES})
 
+set_target_properties(pyxacc PROPERTIES INSTALL_RPATH "@loader_path/lib")
+
 if (FROM_SETUP_PY)
 install(TARGETS pyxacc DESTINATION ${CMAKE_INSTALL_PREFIX})
 else()

quantum/CMakeLists.txt

@@ -19,6 +19,9 @@ message(STATUS "C++ version ${CXX_STANDARD} configured.")
 # Make sure all build libraries have reference to their dependents
 set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
 set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+  set(CMAKE_MACOSX_RPATH ON)
+endif()
 
 set(CppMicroServices_DIR "${CPPUS_LIBRARY_DIR}/../share/cppmicroservices3/cmake")
 

xacc/CMakeLists.txt

@@ -17,6 +17,11 @@ set(CMAKE_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_STANDARD 11)
 message(STATUS "C++ version ${CXX_STANDARD} configured.")
 
+set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
+set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+  set(CMAKE_MACOSX_RPATH ON)
+endif()
 # Modify our CMAKE_MODULE_PATH
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${XACC_ROOT}/cmake/Modules")
 include(tests)