Index: runtimes/CMakeLists.txt
===================================================================
--- runtimes/CMakeLists.txt
+++ runtimes/CMakeLists.txt
@@ -24,6 +24,7 @@
   endfunction()
 
   cmake_minimum_required(VERSION 3.4.3)
+  project(Runtimes C CXX ASM)
 
   # Add the root project's CMake modules, and the LLVM build's modules to the
   # CMake module path.
@@ -84,6 +85,11 @@
   include(AddLLVM)
   include(HandleLLVMOptions)
 
+  if (ANDROID)
+    remove_definitions(-D_FILE_OFFSET_BITS=64)
+    string(REPLACE "-Wl,-z,defs" "" CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS})
+  endif()
+
   set(CMAKE_REQUIRED_FLAGS ${SAFE_CMAKE_REQUIRED_FLAGS})
   set(CMAKE_REQUIRED_LIBRARIES ${SAFE_CMAKE_REQUIRED_LIBRARIES})