From 0452b339973abf1ba580a203217011340bbf1009 Mon Sep 17 00:00:00 2001
From: Daniel Jewell <23286051+danieldjewell@users.noreply.github.com>
Date: Wed, 4 Aug 2021 18:08:50 -0700
Subject: [PATCH] Fix an ImportError w/Blosc on Android

Android does not have a functioning semaphore system (actually it's
    bionic-C that doesn't...). When trying to import numcodecs.blosc on
Android, an ImportError exception was thrown - which was unhandled.
---
 numcodecs/blosc.pyx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/numcodecs/blosc.pyx b/numcodecs/blosc.pyx
index 3bfdc00c..340be8a4 100644
--- a/numcodecs/blosc.pyx
+++ b/numcodecs/blosc.pyx
@@ -79,6 +79,8 @@ try:
     mutex = multiprocessing.Lock()
 except OSError:
     mutex = None
+except ImportError:
+    mutex = None
 
 # store ID of process that first loads the module, so we can detect a fork later
 _importer_pid = os.getpid()