Make technique work with more complex recipes

conda/conda-bootstrap.py

@@ -57,7 +57,7 @@ def get_rendered_recipe(python, path):
     # writes a temporary recipe without bob-devel
     orig = os.path.join(path, 'meta.yaml')
     contents = open(orig).read()
-    result = re.search(r'requirements:\s*\n\s*host:\s*\n', contents)
+    result = re.search(r'requirements:\s*\n.+host:\s*\n', contents, re.DOTALL)
     contents = contents[:result.end()] + \
         '    - bob-devel {{ bob_devel }}.*\n' + \
         contents[result.end():]