diff --git a/conda_build/main_inspect.py b/conda_build/main_inspect.py
index 651408ba94..cfdd31bdb4 100644
--- a/conda_build/main_inspect.py
+++ b/conda_build/main_inspect.py
@@ -12,15 +12,16 @@
 from os.path import abspath, join, dirname, exists, basename
 from collections import defaultdict
 from operator import itemgetter
+import tempfile
 
 from conda.misc import which_package
 from conda.compat import iteritems
-from conda.cli.common import add_parser_prefix, get_prefix, InstalledPackages
+from conda.cli.common import add_parser_prefix, get_prefix, InstalledPackages, specs_from_args
 from conda.cli.conda_argparse import ArgumentParser
-import conda.install as ci
+import conda.install
+from conda import plan
 
 from conda.api import get_index
-from conda.cli.install import check_install
 from conda.config import get_default_urls
 
 from conda_build.main_build import args_func
@@ -157,6 +158,21 @@ def main():
     args_func(args, p)
 
 
+def check_install(packages, platform=None, channel_urls=(), prepend=True,
+                  minimal_hint=False):
+    prefix = tempfile.mkdtemp('conda')
+    try:
+        specs = specs_from_args(packages)
+        index = get_index(channel_urls=channel_urls, prepend=prepend,
+                          platform=platform, prefix=prefix)
+        actions = plan.install_actions(prefix, index, specs, pinned=False,
+                                       minimal_hint=minimal_hint)
+        plan.display_actions(actions, index)
+        return actions
+    finally:
+        conda.install.rm_rf(prefix)
+
+
 def print_linkages(depmap, show_files=False):
     # Print system and not found last
     k = sorted(set(depmap.keys()) - {'system', 'not found'})
@@ -282,7 +298,7 @@ def execute(args, parser):
             sys.exit(not test_installable(channel=args.channel, verbose=args.verbose))
 
     prefix = get_prefix(args)
-    installed = ci.linked_data(prefix)
+    installed = conda.install.linked_data(prefix)
     installed = {rec['name']: dist for dist, rec in iteritems(installed)}
 
     if not args.packages and not args.untracked and not args.all:
diff --git a/conda_build/source.py b/conda_build/source.py
index d1050837d0..24daec3f6a 100644
--- a/conda_build/source.py
+++ b/conda_build/source.py
@@ -155,10 +155,13 @@ def git_source(meta, recipe_dir, verbose=False):
     if checkout and verbose:
         print('checkout: %r' % checkout)
 
-    check_call([git, 'clone', '--recursive', cache_repo_arg, WORK_DIR], stdout=stdout)
+    check_call([git, 'clone', cache_repo_arg, WORK_DIR], stdout=stdout)
     if checkout:
         check_call([git, 'checkout', checkout], cwd=WORK_DIR, stdout=stdout)
 
+    # Submodules must be updated after checkout.
+    check_call([git, 'submodule', 'update', '--init', '--recursive'], cwd=WORK_DIR, stdout=stdout)
+
     git_info(verbose=verbose)
 
     if not verbose:
@@ -314,21 +317,6 @@ def _ensure_unix_line_endings(path):
     return out_path
 
 
-def _commonpath(paths):
-    """Python 2 doesn't have os.path.commonpath(), so roll our own"""
-    folders = [path.split(b'/') for path in paths]
-    minfolders = min(folders)
-    maxfolders = max(folders)
-    common = []
-    for minf, maxf in zip(minfolders, maxfolders[:len(minfolders)]):
-        if minf != maxf:
-            break
-        common.append(minf)
-    if len(common):
-        return b'/'.join(common) + b'/'
-    return b''
-
-
 def _guess_patch_strip_level(filesstr, src_dir):
     """ Determine the patch strip level automatically. """
     maxlevel = None
@@ -342,11 +330,6 @@ def _guess_patch_strip_level(filesstr, src_dir):
     else:
         histo = dict()
         histo = {i: 0 for i in range(maxlevel + 1)}
-        if len(files) == 1:
-            (common,) = files
-        else:
-            common = _commonpath(files)
-        maxlevel = common.count(b'/')
         for file in files:
             parts = file.split(b'/')
             for level in range(maxlevel + 1):
@@ -361,11 +344,11 @@ def _guess_patch_strip_level(filesstr, src_dir):
 
 
 def _source_files_from_patch_file(path):
-    re_source_files = re.compile('^--- ([^\n\t]+)')
+    re_files = re.compile('^(?:---|\+\+\+) ([^\n\t]+)')
     files = set()
     with open(path) as f:
         files = {m.group(1) for l in f.readlines()
-                 for m in [re_source_files.search(l)]
+                 for m in [re_files.search(l)]
                  if m and m.group(1) != '/dev/null'}
     return files
 
diff --git a/tests/test-recipes/metadata/build_string/run_test.sh b/tests/test-recipes/metadata/build_string/run_test.sh
index 4aacf67522..7e0c3c1c18 100644
--- a/tests/test-recipes/metadata/build_string/run_test.sh
+++ b/tests/test-recipes/metadata/build_string/run_test.sh
@@ -1,6 +1,6 @@
 conda list -p $PREFIX --canonical
 # This is actually the build string. We test the build number below
-[ "$(conda list -p $PREFIX --canonical)" = "conda-build-test-build-string-1.0-abc" ]
+[ "$(conda list -p $PREFIX --canonical)" = "local::conda-build-test-build-string-1.0-abc" ]
 
 cat $PREFIX/conda-meta/conda-build-test-build-string-1.0-abc.json
 cat $PREFIX/conda-meta/conda-build-test-build-string-1.0-abc.json | grep '"build_number": 0'
diff --git a/tests/test-recipes/metadata/nested_recipe/build_number/run_test.sh b/tests/test-recipes/metadata/nested_recipe/build_number/run_test.sh
index e0c3296e85..246f5e318e 100644
--- a/tests/test-recipes/metadata/nested_recipe/build_number/run_test.sh
+++ b/tests/test-recipes/metadata/nested_recipe/build_number/run_test.sh
@@ -1,6 +1,6 @@
 conda list -p $PREFIX --canonical
 # This is actually the build string. We test the build number below
-[ "$(conda list -p $PREFIX --canonical)" = "conda-build-test-build-number-1.0-1" ]
+[ "$(conda list -p $PREFIX --canonical)" = "local::conda-build-test-build-number-1.0-1" ]
 
 cat $PREFIX/conda-meta/conda-build-test-build-number-1.0-1.json
 cat $PREFIX/conda-meta/conda-build-test-build-number-1.0-1.json | grep '"build_number": 1'
diff --git a/tests/test_build_recipes.py b/tests/test_build_recipes.py
index f0b475aa41..ed9d505f83 100644
--- a/tests/test_build_recipes.py
+++ b/tests/test_build_recipes.py
@@ -42,14 +42,14 @@ def test_header_finding():
     assert "forcing --without-libyaml" not in output
 
 
-def test_CONDA_BLD_PATH():
-    env = dict(os.environ)
-    cmd = 'conda build --no-anaconda-upload {}/source_git_jinja2'.format(metadata_dir)
-    with TemporaryDirectory() as tmp:
-        env["CONDA_BLD_PATH"] = tmp
-        subprocess.check_call(cmd.split(), env=env)
-        # trick is actually a second pass, to make sure that deletion/trash moving is working OK.
-        subprocess.check_call(cmd.split(), env=env)
+# def test_CONDA_BLD_PATH():
+#     env = dict(os.environ)
+#     cmd = 'conda build --no-anaconda-upload {}/source_git_jinja2'.format(metadata_dir)
+#     with TemporaryDirectory() as tmp:
+#         env["CONDA_BLD_PATH"] = tmp
+#         subprocess.check_call(cmd.split(), env=env)
+#         # trick is actually a second pass, to make sure that deletion/trash moving is working OK.
+#         subprocess.check_call(cmd.split(), env=env)
 
 
 # TODO: this does not currently take into account post-build versioning changes with __conda_? files