feature/gbuild_scp2 is ready for review

[Norbert Thiebaud]

BTW to get the thing moving forward as described above I needed:

--- test-conversion.sh.orig	2012-05-20 09:07:36.000000000 -0500
+++ test-conversion.sh	2012-05-20 09:20:28.000000000 -0500
@@ -111,12 +111,19 @@

 do_build() {
     local system_icu=$(get_make_var SYSTEM_ICU)
+    local system_python=$(get_make_var SYSTEM_PYTHON)
     git checkout 5875f18b71c6734145aca9c3210b7de444966a29
     make scp2.all
     git checkout feature/gbuild_scp2
     if [[ ${system_icu} != YES ]]; then
+        make icu.clean
         make icu icu.deliver
     fi
+    if [[ ${system_python} = NO ]]; then
+        make python.clean
+        make python
+        make python.deliver
+    fi
     make scp2
 }