add gcc 6.1 support to boost.m4

diff --git a/m4/boost.m4 b/m4/boost.m4
index 9df0429614d204f4ab7d660fcadcb18cc160a325..36109776c9d339288e5f49352c2d8a6775cd56f6 100644 (file)
--- a/m4/boost.m4
+++ b/m4/boost.m4
@@ -1408,6 +1408,8 @@ if test x$boost_cv_inc_path != xno; then
   # I'm not sure about my test for `il' (be careful: Intel's ICC pre-defines
   # the same defines as GCC's).
   for i in \
+    _BOOST_mingw_test(6, 1) \
+    _BOOST_gcc_test(6, 1) \
     _BOOST_mingw_test(6, 0) \
     _BOOST_gcc_test(6, 0) \
     _BOOST_mingw_test(5, 3) \