Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt	(revision 178411)
+++ CMakeLists.txt	(working copy)
@@ -106,7 +106,7 @@
           OUTPUT "${CMAKE_BINARY_DIR}/include/${dstdir}/${ifile}"
           COMMAND ${CMAKE_COMMAND} -E copy_if_different
             "${incpath}/${fpath}"
-            "${CMAKE_BINARY_DIR}/include/${dstdir}/"
+            "${CMAKE_BINARY_DIR}/include/${dstdir}"
           MAIN_DEPENDENCY "${incpath}/${fpath}"
           )
         list(APPEND LIBCXX_CXX_ABI_DEPS