readme: noting c++11 requirement

nlitsme · nlitsme · commit 8bbae3d3483d · 2013-06-10T23:49:21.000+02:00
diff --git a/README.md b/README.md
@@ -42,6 +42,8 @@ and in hexagon_iset_v[234].h  change HEXAGON_MAP_FNAME to HEXAGON_MAP_FPTR
 
 I used the gnutools from december 2011.
 
+You need a c++11 compiler, like visualstudio-express 2010, or clang++3.1
+
 bugs
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