CMake: when building shared libraries, use -fPIC for compiling
partially linked objects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59699 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/cmake/modules/AddPartiallyLinkedObject.cmake b/cmake/modules/AddPartiallyLinkedObject.cmake
index c23a665..e13574b 100755
--- a/cmake/modules/AddPartiallyLinkedObject.cmake
+++ b/cmake/modules/AddPartiallyLinkedObject.cmake
@@ -17,6 +17,9 @@
     set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/temp_lib)
     set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/temp_lib)
     llvm_process_sources( ALL_FILES ${ARGN} )
+    if( BUILD_SHARED_LIBS AND SUPPORTS_FPIC_FLAG )
+      add_definitions(-fPIC)
+    endif()
     add_library( ${lib} STATIC ${ALL_FILES})
     if( LLVM_COMMON_DEPENDS )
       add_dependencies( ${lib} ${LLVM_COMMON_DEPENDS} )