The old version does not compile anymore

This script copies an executable to a destination /bin directory,
checks for the libraries it depends on, and copies such libraries
in the destination /lib directory.

For ARM boards, '-S AMA' could be useful

This was a leftover from previous implementations

The previous version did not cross-compile correctly
(for aarch64, at least)

Fix a build failure with modern toolchains

Just unset the locale at the beginning of the script

And fix a typo in the meanwhile... :)

Hopefully, this is unused.
If it is not, it can still be recovered from git history.

Split utils

See merge request !1

Now, it should be sufficient to set "PREFIX"

When the "$ARCH" environment variable is not set, we ended up with
"make ARCH=", setting a non-existent arch...

Fix the issue by exporting the environment variable instead...

Still TODO: fix the "ARCH vs MARCH vs CROSS" mess!

It was working by chance

Only lightly tested with ARM

For some reason, "--sysroot=" is not enough, while "-L" seems to work well

Still to be fully tested...

This will help cross-compiling ("ldd" wants to execute the program)

sudo was broken by commit f5fd2e2d
which caused only libnss_files-2.*.so to be installed, while sudo
searches for libnss_files.so.2

In some architectures (mainly 32bit ones), the directory can be empty,
so nothing has to be copied

In some cases, the same library can be present more times in /lib
(one of the two files can be a symbolic name to the other one).
So, only fetch one of the files.

This should allow to generate guest images from fedora and other distros

This is needed in distributions where /lib and/or /lib64 are
symlinks to something else