Updated KLayout Python Module Prototype (markdown)

KLayout-Python-Module-Prototype.md

@@ -1,11 +1,28 @@
 
 The prototype is found in the [pymod branch](https://github.com/klayoutmatthias/klayout/tree/pymod). This build is enabled to produce a Python module. 
 
+There are basically two ways of producing Python modules:
+
 Binary packages and documentation for the branch are available here: [http://www.klayout.org/downloads/pymod](http://www.klayout.org/downloads/pymod/).
 
-## Building
+## Building with ```distutils```
 
-For building use the build script:
+```
+# From the project's root directory
+sudo python setup.py install
+```
+
+This build configuration is currently hard configured this way:
+
+ * No Qt required and no Qt related functionality produced
+ * Requires ```expat``` for XML parwsing
+ * Required ```curl``` for HTTP support
+ * Requires ```pthread``` for multithread support
+
+
+## Building together with the main application
+
+For building with the build script use:
 
 ```
 # From the project's root directory
@@ -19,6 +36,22 @@ If you want it fast and don't need to Qt bindings, use:
 ./build.sh -bin <your-installation-path> -without-qtbinding
 ```
 
+For even faster build without any UI functionality, you can use a Qt-less build:
+
+```
+# From the project's root directory
+./build.sh -bin <your-installation-path> -without-qt -libcurl -libexpat
+```
+
+In fact the minimum build is without HTTP and XML support:
+
+```
+# From the project's root directory
+./build.sh -bin <your-installation-path> -without-qt
+```
+
+Without XML support however, some formats are not readable (such as layer property files, PCB projects etc.).
+
 For ```<your-installation-path>``` pick a destination where you want KLayout to be installed. For example you can use ```/usr/local/klayout``` for the destination, but you will need sudo permissions then:
 
 ```