Avoid rebuilding the RTSanitizerCommon objects when building clang_rt.san.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@182218 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/sanitizer_common/CMakeLists.txt b/lib/sanitizer_common/CMakeLists.txt
index e0195f4..64d5e26 100644
--- a/lib/sanitizer_common/CMakeLists.txt
+++ b/lib/sanitizer_common/CMakeLists.txt
@@ -83,9 +83,9 @@
     add_compiler_rt_object_library(RTSanitizerCommonLibc ${arch}
       SOURCES ${SANITIZER_LIBCDEP_SOURCES} CFLAGS ${SANITIZER_CFLAGS})
     add_compiler_rt_static_runtime(clang_rt.san-${arch} ${arch}
-      SOURCES ${SANITIZER_SOURCES}
-      $<TARGET_OBJECTS:RTSanitizerCommonLibc.${arch}> CFLAGS
-      ${SANITIZER_CFLAGS})
+      SOURCES $<TARGET_OBJECTS:RTSanitizerCommon.${arch}>
+              $<TARGET_OBJECTS:RTSanitizerCommonLibc.${arch}>
+      CFLAGS ${SANITIZER_CFLAGS})
     list(APPEND SANITIZER_RUNTIME_LIBRARIES RTSanitizerCommon.${arch})
   endforeach()
 endif()