Squashed 'waflib/' changes from 915dcb1..e7a29b6

e7a29b6 Upgrade to waf 2.0.15
8280f9d Add command for running executables from the build directory
8073c1a Make make_simple_dox() safe in case of exception
70d03b8 Avoid use of global counter hacks for configuration display
b7d689a Rewrite test framework
94deadf Automatically add options and move add_flags() to options context
f4259ee Reduce system include path noise
927b608 Automatically display configuration header
c44b8f3 Set line justification from a constant in the wscript
a48e26f Automatically detect if wscript has a test hook
ef66724 Save runtime variables in the environment
63bcbcd Clean up TestContext
b1d9505 Add ExecutionContext for setting runtime environment
387c1df Add show_diff() and test_file_equals() utilities
29d4d29 Fix in-tree library paths
9fde01f Add custom configuration context
6d3612f Add lib_path_name constant

git-subtree-dir: waflib
git-subtree-split: e7a29b6b9b2f842314244c23c14d8f8f560904e1

1 files changed, 13 insertions, 5 deletions

diff --git a/Utils.py b/Utils.py
index b4665c4..4b808a8 100644
--- a/Utils.py
+++ b/Utils.py
@@ -49,10 +49,16 @@ try:
 	from hashlib import md5
 except ImportError:
 	try:
-		from md5 import md5
+		from hashlib import sha1 as md5
 	except ImportError:
-		# never fail to enable fixes from another module
+		# never fail to enable potential fixes from another module
 		pass
+else:
+	try:
+		md5().digest()
+	except ValueError:
+		# Fips? #2213
+		from hashlib import sha1 as md5
 
 try:
 	import threading
@@ -202,7 +208,7 @@ class lazy_generator(object):
 
 	next = __next__
 
-is_win32 = os.sep == '\\' or sys.platform == 'win32' # msys2
+is_win32 = os.sep == '\\' or sys.platform == 'win32' or os.name == 'nt' # msys2
 """
 Whether this system is a Windows series
 """
@@ -484,7 +490,9 @@ def split_path_msys(path):
 if sys.platform == 'cygwin':
 	split_path = split_path_cygwin
 elif is_win32:
-	if os.environ.get('MSYSTEM'):
+	# Consider this an MSYSTEM environment if $MSYSTEM is set and python
+	# reports is executable from a unix like path on a windows host.
+	if os.environ.get('MSYSTEM') and sys.executable.startswith('/'):
 		split_path = split_path_msys
 	else:
 		split_path = split_path_win32
@@ -730,7 +738,7 @@ def unversioned_sys_platform():
 	if s == 'cli' and os.name == 'nt':
 		# ironpython is only on windows as far as we know
 		return 'win32'
-	return re.split('\d+$', s)[0]
+	return re.split(r'\d+$', s)[0]
 
 def nada(*k, **kw):
 	"""