Add Global posix thread aka pthread Support

this flag enables multithread support much like what I did in kitkat.

SaberMod/android_build-OLD@93d3763

Change-Id: Id5559ec460b2ba84ed9cfe7a47b0ac59544e1d61
Signed-off-by: Paul Beeler <pbeeler80@gmail.com>

core/binary.mk

@@ -97,6 +97,7 @@ else
   endif
 endif
 
+##########################################################################
 # Copyright (C) 2014-2015 The SaberMod Project
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -110,22 +111,21 @@ endif
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-#
-
-# Include custom gcc flags.  Seperate them so they can be easily managed.
+##########################################################################
 
-# arm thumb
-ifeq ($(strip $(ENABLE_ARM_THUMB_INTERWORK)),true)
-  ifneq ($(strip $(LOCAL_IS_HOST_MODULE)),true)
-    include $(BUILD_SYSTEM)/thumb_interwork.mk
-  endif
+# arm thumb, not used on the host compiler.
+ifneq ($(strip $(LOCAL_IS_HOST_MODULE)),true)
+  include $(BUILD_SYSTEM)/thumb_interwork.mk
 endif
 
 # O3
 ifeq ($(strip $(O3_OPTIMIZATIONS)),true)
   include $(BUILD_SYSTEM)/O3.mk
 endif
 
+# Add pthread support
+include $(BUILD_SYSTEM)/pthread.mk
+
 # Do not use graphite on host modules or the clang compiler.
 ifneq ($(strip $(LOCAL_IS_HOST_MODULE)),true)
   ifneq ($(strip $(LOCAL_CLANG)),true)
@@ -135,6 +135,7 @@ ifneq ($(strip $(LOCAL_IS_HOST_MODULE)),true)
   endif
 endif
 
+
 #end SaberMod
 
 # The following LOCAL_ variables will be modified in this file.

core/pthread.mk

@@ -0,0 +1,22 @@
+# Copyright (C) 2015 The SaberMod Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Add pthread flags globally
+ifneq (1,$(words $(filter $(LOCAL_DISABLE_PTHREAD),$(LOCAL_MODULE))))
+  ifdef LOCAL_CFLAGS
+    LOCAL_CFLAGS += -pthread
+  else
+    LOCAL_CFLAGS := -pthread
+  endif
+endif