change warning about C++
diff --git a/Doc/ext.tex b/Doc/ext.tex
index 4819124..963f8ff 100644
--- a/Doc/ext.tex
+++ b/Doc/ext.tex
@@ -1133,9 +1133,10 @@
\section{Writing Extensions in \Cpp{}}
It is possible to write extension modules in \Cpp{}. Some restrictions
-apply: since the main program (the Python interpreter) is compiled and
+apply. If the main program (the Python interpreter) is compiled and
linked by the C compiler, global or static objects with constructors
-cannot be used. All functions that will be called directly or
+cannot be used. This is not a problem if the main program is linked
+by the \Cpp{} compiler. All functions that will be called directly or
indirectly (i.e. via function pointers) by the Python interpreter will
have to be declared using \code{extern "C"}; this applies to all
``methods'' as well as to the module's initialization function.