Build mostly static native image, loose linux glibc requirement to 2.12 #730
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This pr improves native image portability on linux and windows via:
glibcrequirement to 2.12. Now themvnddepends on manyJNIs which are built byglibctoolchains, so we cannot easily switch tomusltoolchains or a fully static image (discussed in Build static native image for linux amd64 system #727 ). Whereas a lower glibc requirement adds support for most old linux boxes.An explicit
glibcrequirement also removes a side effect of changing the build system. When update the build system from ubuntu 18.04 to 20.04, the glibc requirement may also increase to match the new os. On the other hand, glibc 2.12 is required by graalvm.