Fix auto-linking logic (Windows only).

stefanseefeld · stefanseefeld · commit 24313709a78c · 2018-04-12T23:39:22.000-04:00
diff --git a/include/boost/python/detail/config.hpp b/include/boost/python/detail/config.hpp
@@ -105,7 +105,9 @@
 // Set the name of our library, this will get undef'ed by auto_link.hpp
 // once it's done with it:
 //
-#define BOOST_LIB_NAME boost_python##PY_MAJOR_VERSION##PY_MINOR_VERSION
+#define _BOOST_PYTHON_CONCAT(N, M, m) N ## M ## m
+#define BOOST_PYTHON_CONCAT(N, M, m) _BOOST_PYTHON_CONCAT(N, M, m)
+#define BOOST_LIB_NAME BOOST_PYTHON_CONCAT(boost_python, PY_MAJOR_VERSION, PY_MINOR_VERSION)
 //
 // If we're importing code from a dll, then tell auto_link.hpp about it:
 //
@@ -118,6 +120,9 @@
 #include <boost/config/auto_link.hpp>
 #endif  // auto-linking disabled
 
+#undef BOOST_PYTHON_CONCAT
+#undef _BOOST_PYTHON_CONCAT
+
 #ifndef BOOST_PYTHON_NO_PY_SIGNATURES
 #define BOOST_PYTHON_SUPPORTS_PY_SIGNATURES // enables smooth transition
 #endif
