Add an example

wscript

@@ -2,6 +2,7 @@
 ## (C) 2007 Gustavo J. A. M. Carneiro
 
 import Params
+from Params import fatal
 
 VERSION='0.1'
 
@@ -10,12 +11,23 @@ srcdir = '.'
 blddir = 'build'
 
 def set_options(opt):
-    opt.sub_options('tests')
+    opt.tool_options('python')
+    opt.tool_options('compiler_cxx')
 
 def configure(conf):
-    conf.sub_config('tests')
+    conf.check_tool('misc')
+    if not conf.check_tool('compiler_cxx'):
+        fatal("Error: no C compiler was found in PATH.")
+    if not (conf.check_tool('python')
+            and conf.check_python_version((2,4,2))
+            and conf.check_python_headers()):
+        fatal("Error: missing Python development environment.\n"
+              "(Hint: if you do not have a debugging Python library installed"
+              " try using the configure option '--debug-level release')")
 
 def build(bld):
     if Params.g_commands['check']:
         bld.add_subdirs('tests')
+    bld.add_subdirs('examples')
+