Provide install documentation for Deno for environments using older releases of glibc

[nellh]

A user reported Deno doesn't run on glibc 2.18 (released in 2013). We should point at instructions for a workaround (possibly Conda?).

[yarikoptic]

FTR, even oldoldstable debian buster has 2.28 https://packages.debian.org/buster/libc6 ...

I do not think it is neither feasible nor productive to strive to support arbitrarily old systems, unless there is either a way to get a static build of executable, or provide some "standalone" collection of binaries like we do for git-annex-standalone:

$> dpkg -L git-annex-standalone | grep libc
/usr/lib/git-annex.linux/lib/x86_64-linux-gnu/glibc-hwcaps
/usr/lib/git-annex.linux/lib/x86_64-linux-gnu/libc.so.6
/usr/lib/git-annex.linux/lib/x86_64-linux-gnu/libc_malloc_debug.so.0
/usr/lib/git-annex.linux/lib/x86_64-linux-gnu/libcom_err.so.2
/usr/lib/git-annex.linux/lib/x86_64-linux-gnu/libcrypto.so.3
/usr/lib/git-annex.linux/lib/x86_64-linux-gnu/libcurl-gnutls.so.4
/usr/lib/git-annex.linux/lib/x86_64-linux-gnu/glibc-hwcaps/x86-64-v2
/usr/lib/git-annex.linux/lib/x86_64-linux-gnu/glibc-hwcaps/x86-64-v3
/usr/lib/git-annex.linux/lib/x86_64-linux-gnu/glibc-hwcaps/x86-64-v4

FTR, ATM

yoh@typhon:~$ ldd bids-validator 
	linux-vdso.so.1 (0x00007ffdf9ff6000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f0837c64000)
	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f0837c44000)
	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f0837c3f000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f0837c3a000)
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f0837b5b000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f083261f000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f0837c8c000)

and potentially relevant discussion I googled up:

• Release centos7 compatible binaries denoland/deno#1658

Having said that, worth testing if base system version matters while compiling binaries (#148 ) and thus choosing some "the oldest most reasonable" base. For that reason e.g. we still somewhat favor older OSX for git-annex builds in https://github.com/datalad/git-annex/blob/master/.github/workflows/build-macos.yaml#L27 .