--- a/context/detail/config.hpp	2015-08-20 18:58:43.181557549 +0200
+++ b/context/detail/config.hpp	2015-08-20 18:42:40.288152765 +0200
@@ -50,7 +50,7 @@
 #endif
 
 #if defined(BOOST_USE_SEGMENTED_STACKS)
-# if ! ( (defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || (__GNUC__ > 4)) || \
+# if ! ( (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))) || \
          (defined(__clang__) && __clang_major__ > 2 && __clang_minor__ > 3) )
 #  error "compiler does not support segmented_stack stacks"
 # endif