Build

doc: document default installation paths and how to override them #4226

Job	Run time
musl libc minimal static build on Debian	59s
make static	1m 18s
cross (armhf)	1m 42s
muon minimal static	54s
musl libc build on Alpine	1m 59s
windows-msys2-ucrt64	1m 56s
libnvme (debian, gcc, release)	1m 1s
musl libc build on Debian	2m 5s
build libnvme and nvme-cli separately	2m 13s
nvme-cli (fedora, gcc, debug)	1m 16s
nvme-cli (debian, clang, debug)	1m 29s
cross (ppc64le)	1m 30s
cross (s390x)	59s
nvme-cli (debian, gcc, release)	2m 32s
nvme-cli (fedora, clang, debug)	2m 31s
nvme-cli (tumbleweed, gcc, release)	1m 52s
nvme-cli (fedora, gcc, release)	1m 14s
nvme-cli (tumbleweed, clang, debug)	1m 31s
nvme-cli (tumbleweed, gcc, debug)	2m 26s
nvme-cli (fedora, clang, release)	53s
nvme-cli (tumbleweed, clang, release)	1m 50s
nvme-cli (debian, gcc, debug)	1m 39s
nvme-cli (debian, clang, release)	2m 5s
fallback shared libraries	-1s
	37m 53s

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