vendor/bliss: Autodetect SDCLANG in prebuilts/snapdragon-llvm

 * Will be used by the build servers

Change-Id: I5d31a7c41adc283cb9336314e9d54412cc740e9e
Signed-off-by: Jackeagle <jackeagle102@gmail.com>
diff --git a/build/envsetup.sh b/build/envsetup.sh
index 945674c..86b3771 100644
--- a/build/envsetup.sh
+++ b/build/envsetup.sh
@@ -310,3 +310,10 @@
     adb push $OUT/$* /$*
     adb reboot
 }
+
+# Enable SD-LLVM if available
+if [ -d $(gettop)/prebuilts/snapdragon-llvm/toolchains ]; then
+    export SDCLANG=true
+    export SDCLANG_PATH=$(gettop)/prebuilts/snapdragon-llvm/toolchains/llvm-Snapdragon_LLVM_for_Android_3.8/prebuilt/linux-x86_64/bin
+    export SDCLANG_LTO_DEFS=$(gettop)/device/qcom/common/sdllvm-lto-defs.mk
+fi