Preface: I am not producing an Android app. I work for a software component business, creating shared libraries, compiled from C and C++ code, for use in third-party customers' apps. I test my libraries in a command-line test harness, which I run in the ADB shell.
I've found that I can get my Android command-line test harness, built with NDK 21b, to run on ARM Linux. If people are interested in the details, I can post them.
However, I need to build my Android code on x86 (I'm using the Linux version of the NDK), because there isn't a version of the NDK for ARM Linux. Is there any prospect of it appearing? If so, it would be convenient for me if the NDK ran on glibc 2.26 or earlier, since that's my standard for ARM Linux.
Compliments of the season,