RS native tests should be built with clang.

Change-Id: I6f3bf8c138debe62be7fe8fe9d4d3339eb21a25b
diff --git a/tests/cppallocation/Android.mk b/tests/cppallocation/Android.mk
index 191c58d..ddd3ee1 100644
--- a/tests/cppallocation/Android.mk
+++ b/tests/cppallocation/Android.mk
@@ -30,6 +30,7 @@
 LOCAL_C_INCLUDES += frameworks/rs
 LOCAL_C_INCLUDES += $(intermediates)
 
+LOCAL_CLANG := true
 
 include $(BUILD_EXECUTABLE)
 
diff --git a/tests/cppbasic/Android.mk b/tests/cppbasic/Android.mk
index bf7725a..3b19db7 100644
--- a/tests/cppbasic/Android.mk
+++ b/tests/cppbasic/Android.mk
@@ -30,6 +30,7 @@
 LOCAL_C_INCLUDES += frameworks/rs
 LOCAL_C_INCLUDES += $(intermediates)
 
+LOCAL_CLANG := true
 
 include $(BUILD_EXECUTABLE)
 
diff --git a/tests/cppbasic/compute.cpp b/tests/cppbasic/compute.cpp
index 21ffe2b..d977667 100644
--- a/tests/cppbasic/compute.cpp
+++ b/tests/cppbasic/compute.cpp
@@ -6,7 +6,7 @@
 using namespace android;
 using namespace RSC;
 
-int main(int argc, char** argv)
+int main()
 {
 
     sp<RS> rs = new RS();
diff --git a/tests/cppstrided/Android.mk b/tests/cppstrided/Android.mk
index f0c5c4b..66161c4 100644
--- a/tests/cppstrided/Android.mk
+++ b/tests/cppstrided/Android.mk
@@ -30,6 +30,7 @@
 LOCAL_C_INCLUDES += frameworks/rs
 LOCAL_C_INCLUDES += $(intermediates)
 
+LOCAL_CLANG := true
 
 include $(BUILD_EXECUTABLE)
 
diff --git a/tests/latency/Android.mk b/tests/latency/Android.mk
index cdea381..83d5ad8 100644
--- a/tests/latency/Android.mk
+++ b/tests/latency/Android.mk
@@ -30,6 +30,7 @@
 LOCAL_C_INCLUDES += frameworks/rs
 LOCAL_C_INCLUDES += $(intermediates)
 
+LOCAL_CLANG := true
 
 include $(BUILD_EXECUTABLE)
 
diff --git a/tests/typecheck/Android.mk b/tests/typecheck/Android.mk
index 064ccc0..62522a4 100644
--- a/tests/typecheck/Android.mk
+++ b/tests/typecheck/Android.mk
@@ -30,6 +30,7 @@
 LOCAL_C_INCLUDES += frameworks/rs
 LOCAL_C_INCLUDES += $(intermediates)
 
+LOCAL_CLANG := true
 
 include $(BUILD_EXECUTABLE)
 
diff --git a/tests/typecheck/typecheck.cpp b/tests/typecheck/typecheck.cpp
index 17dee1f..d50cbf6 100644
--- a/tests/typecheck/typecheck.cpp
+++ b/tests/typecheck/typecheck.cpp
@@ -71,7 +71,7 @@
 TEST_ELEM_ALL(F32)
 TEST_ELEM_ALL(F64)
 
-int main(int argc, char** argv)
+int main()
 {
     bool failed = false;