[cmake] [compiler-rt] Call llvm_setup_rpath() when adding shared libraries.

Clang and llvm already use llvm_setup_rpath(), so this change will
help standarize rpath usage across all projects.

Differential Revision: https://reviews.llvm.org/D42462

llvm-svn: 323606

Author: donhinton

compiler-rt/cmake/Modules/AddCompilerRT.cmake

@@ -247,6 +247,9 @@ function(add_compiler_rt_runtime name type)
       target_link_libraries(${libname} ${LIB_LINK_LIBS})
     endif()
     if(${type} STREQUAL "SHARED")
+      if(COMMAND llvm_setup_rpath)
+        llvm_setup_rpath(${libname})
+      endif()
       if(WIN32 AND NOT CYGWIN AND NOT MINGW)
         set_target_properties(${libname} PROPERTIES IMPORT_PREFIX "")
         set_target_properties(${libname} PROPERTIES IMPORT_SUFFIX ".lib")