fix incorrect in macro if statement
diff --git a/include/pybind11/pybind11.h b/include/pybind11/pybind11.h
index 264646c..b0ae558 100644
--- a/include/pybind11/pybind11.h
+++ b/include/pybind11/pybind11.h
@@ -20,7 +20,7 @@
#elif defined(__ICC) || defined(__INTEL_COMPILER)
# pragma warning(push)
# pragma warning(disable:2196) // warning #2196: routine is both "inline" and "noinline"
-#elif defined(__GNUG__) and !defined(__clang__)
+#elif defined(__GNUG__) && !defined(__clang__)
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wunused-but-set-parameter"
# pragma GCC diagnostic ignored "-Wunused-but-set-variable"
@@ -1218,6 +1218,6 @@
# pragma warning(pop)
#elif defined(__ICC) || defined(__INTEL_COMPILER)
# pragma warning(pop)
-#elif defined(__GNUG__) and !defined(__clang__)
+#elif defined(__GNUG__) && !defined(__clang__)
# pragma GCC diagnostic pop
#endif