JDK-8275128 introduced new Makefile for hsdis to integrate it to normal build system, however it does not work on WSL 1 Ubuntu 20.04 and MinGW from Ubuntu.

Hsdis.gmk has two problems:

1. MinGW version is fixed to "9.2.0"
2. Assumes sysroot for MinGW is located at /usr/$MINGW_BASE/sys-root