Remove -Wstrict-prototypes, as not it's useful for C++ code and produces needless compile warnings

Author: Neil

setup.py

@@ -43,7 +43,6 @@
      check_provide_pytz, check_provide_dateutil,\
      check_for_dvipng, check_for_ghostscript, check_for_latex, \
      check_for_pdftops, check_for_datetime, options, build_png, build_tri
-#import distutils.sysconfig
 
 # jdh
 packages = [

setupext.py

@@ -46,6 +46,7 @@
 import os
 import re
 import subprocess
+from distutils import sysconfig
 
 basedir = {
     'win32'  : ['win32_static',],
@@ -200,6 +201,20 @@ def print_line(*args, **kwargs):
         pass
     print_status = print_message = print_raw = print_line
 
+# Remove the -Wstrict-prototypesoption, is it's not valid for C++
+customize_compiler = sysconfig.customize_compiler
+def my_customize_compiler(compiler):
+    retval = customize_compiler(compiler)
+    try:
+        compiler.compiler_so.remove('-Wstrict-prototypes')
+    except (ValueError, AttributeError):
+        pass
+    return retval
+
+sysconfig.customize_compiler = my_customize_compiler
+
+
+
 def run_child_process(cmd):
     p = subprocess.Popen(cmd, shell=True,
                          stdin=subprocess.PIPE,