Update common.h (#606)

fixed VS build, when _DEBUG is just defined without any value assigned (e.g. VS15)

Update common.h (#606)
fixed VS build, when _DEBUG is just defined without any value assigned (e.g. VS15)
c2d1d958 · Matthias Möller · Wenzel Jakob · 57a9bbc6 · c2d1d958
Commit c2d1d958 authored Jan 31, 2017 by Matthias Möller Committed by Wenzel Jakob Jan 31, 2017
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include/pybind11/common.h include/pybind11/common.h +1 -1

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--- a/include/pybind11/common.h
+++ b/include/pybind11/common.h
@@ -61,7 +61,7 @@
 #  define HAVE_ROUND
 #  pragma warning(push)
 #  pragma warning(disable: 4510 4610 4512 4005)
-#  if _DEBUG
+#  if defined(_DEBUG)
 #    define PYBIND11_DEBUG_MARKER
 #    undef _DEBUG
 #  endif