[jhbuild] abort on obsolete start script (GNOME #582490)

[Frederic Peters <fpeters src gnome org>]

commit 55749bf95c0a09b5a16a9be578230a93c1f034fd
Author: Frédéric Péters <fpeters 0d be>
Date:   Thu May 14 00:30:19 2009 +0200

    abort on obsolete start script (GNOME #582490)
---
 jhbuild/config.py |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/jhbuild/config.py b/jhbuild/config.py
index e2cae12..fdd1e94 100644
--- a/jhbuild/config.py
+++ b/jhbuild/config.py
@@ -110,6 +110,11 @@ class Config:
         if not self._orig_environ:
             self.__dict__['_orig_environ'] = os.environ.copy()
 
+        try:
+            SRCDIR
+        except NameError:
+            raise FatalError(_('Obsolete jhbuild start script, do run \'make install\''))
+
         env_prepends.clear()
         try:
             execfile(_defaults_file, self._config)