[CMake] export_executable_symbols also needs to add -rdynamic to the linker flags...

Without -rdynamic LLVM built with LTO fails to pass "check" due to loadable modules failing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253944 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
index bf2a482df35ea1679a3fab87c0967be371902447..b5517d0b893d145c92c1e4c16f22e95a47a87bb8 100644 (file)
--- a/cmake/modules/AddLLVM.cmake
+++ b/cmake/modules/AddLLVM.cmake
@@ -660,6 +660,10 @@ endmacro(add_llvm_executable name)
 function(export_executable_symbols target)
   if (NOT MSVC) # MSVC's linker doesn't support exporting all symbols.
     set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1)
+    if (APPLE)
+      set_target_properties(${target} PROPERTIES
+        LINK_FLAGS "-rdynamic")
+    endif()
   endif()
 endfunction()