--- devel/boost-libs/files/patch-boost_atomic_detail_config.hpp	(nonexistent)
+++ devel/boost-libs/files/patch-boost_atomic_detail_config.hpp	(working copy)
@@ -0,0 +1,11 @@ 
+--- boost/atomic/detail/config.hpp.orig	2016-12-22 12:33:14 UTC
++++ boost/atomic/detail/config.hpp
+@@ -61,7 +61,7 @@
+ #endif
+ 
+ #if ((defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)) && (defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) < 403)) ||\
+-    defined(__SUNPRO_CC)
++    defined(__SUNPRO_CC) || defined(__clang__)
+ // This macro indicates we're using older binutils that don't support implied zero displacements for memory opereands,
+ // making code like this invalid:
+ //   movl 4+(%%edx), %%eax