From b56b461e4918992bfe122e7596f8620dcc3dd6de Mon Sep 17 00:00:00 2001
From: Andrew Harp <andrewharp@users.noreply.github.com>
Date: Mon, 4 Apr 2016 15:13:30 -0400
Subject: Do not link in pthread library for Android builds.

This is required to allow Tensorflow to build on Android without hacks. Currently we create a dummy pthread library just to satisfy this dependency for a library that does not exist on Android. See https://github.com/google/protobuf/issues/1373 for more context.
---
 BUILD | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

(limited to 'BUILD')

diff --git a/BUILD b/BUILD
index e35a2e8e..03582503 100644
--- a/BUILD
+++ b/BUILD
@@ -15,8 +15,18 @@ COPTS = [
     "-Wno-error=unused-function",
 ]
 
-# Bazel should provide portable link_opts for pthread.
-LINK_OPTS = ["-lpthread"]
+config_setting(
+    name = "android",
+    values = {
+        "crosstool_top": "//external:android/crosstool",
+    },
+)
+
+# Android builds do not need to link in a separate pthread library.
+LINK_OPTS = select({
+    "//tensorflow:android": [],
+    "//conditions:default": ["-lpthread"],
+})
 
 load(
     "protobuf",
-- 
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