Upgrade Android Studio's CMake to 3.7

[Trevor Harmon]

I'm working on a C++ library built with the Android NDK through an "externalNativeBuild" declaration in my Android Studio gradle file. The version of CMake bundled with Android Studio 2.2 is 3.6, but my library requires some features in CMake 3.7. Is there any way to modify Android Studio to use CMake 3.7? I can't find a way to set a custom path to cmake. I also tried manually upgrading the bundled cmake, but it didn't work; I get strange errors when it runs. Any suggestions? Thank you.