[Python] Fix lack of generation of docstrings when -O is used.

Also, fix generation of docstrings containing a double quote
character.  Patch from Richard Boulton in bug#1700146.


git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@9684 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/python/docstrings/Makefile

@@ -0,0 +1,23 @@
+TOP        = ../..
+SWIG       = $(TOP)/../preinst-swig
+CXXSRCS    = example.cxx
+TARGET     = example
+INTERFACE  = example.i
+LIBS       = -lm
+SWIGOPT    = -O
+
+all::
+	$(MAKE) -f $(TOP)/Makefile CXXSRCS='$(CXXSRCS)' SWIG='$(SWIG)' \
+	SWIGOPT='$(SWIGOPT)' \
+	TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' python_cpp
+
+static::
+	$(MAKE) -f $(TOP)/Makefile CXXSRCS='$(CXXSRCS)' SWIG='$(SWIG)' \
+	SWIGOPT='$(SWIGOPT)' \
+	TARGET='mypython' INTERFACE='$(INTERFACE)' python_cpp_static
+
+clean::
+	$(MAKE) -f $(TOP)/Makefile python_clean
+	rm -f $(TARGET).py
+
+check: all