update-glib-annotations: Set required environment variables

Assume srcdir=builddir, so users don't have to set this.

diff --git a/misc/update-glib-annotations.py b/misc/update-glib-annotations.py
index a65ec30..813019d 100755 (executable)
--- a/misc/update-glib-annotations.py
+++ b/misc/update-glib-annotations.py
@@ -9,6 +9,11 @@ import sys
 
 import subprocess
 
+path=os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
+for k in ['UNINSTALLED_INTROSPECTION_SRCDIR',
+          'UNINSTALLED_INTROSPECTION_BUILDDIR']:
+    if k not in os.environ:
+        os.environ[k] = path
 
 possible_builddirs = ['../_build/', '..', '../../build/']
 builddir = None