remove libeffects from 64-bit blacklist

Everything under frameworks/av/media/libeffects compiles fine for
64-bit

Change-Id: I03519a98903b7d65936053ef7eda8926cce60ea0
Pick gnu-libstdc++ based on TARGET_GCC_VERSION

Previously we have only one set of include/lib paths for
LOCAL_NDK_STL_VARIANT:=gnustl_static regardless of GCC
version, which is wrong because each GCC version
come with its own libstdc++.

Change-Id: I2a01c2120b6948aedce00e2f8d08dfc6932126dd
Make Clang host builds hermetic on Linux.

This lays the groundwork for making builds hermetic on Darwin as well.
That will be fixed in a future patch.

bug 13435344

Change-Id: Iae82d0b9efad0598d682ff5fd4daa737aa607866
Merge "Pick gnu-libstdc++ based on TARGET_GCC_VERSION"
Merge "remove libeffects from 64-bit blacklist"
Merge "Make Clang host builds hermetic on Linux."
Merge remote-tracking branch 'aosp/master'