glibc can be compiled such that mki-fake-dev requires /proc to works.
This on loongarch64.

We cannot get IMAGE_OUTPATH from the build.log, and there is currently
no other mechanism. Creating a CHECK directory was a bad idea. It should
have been created only for CHECK, but it was always created when DEBUG
was not enabled. So it's better to just issue a warning.

This is required to run mkimage-profiles from mki-build with --vm-run.
mki-build creates a build directory and a symlink to it in the current
directory. The BUILDDIR variable is then set to the value of the symlink.

So much clearer and easier.
Thanks glebfm@ for the idea.

check conditions of  make  for equality of variables with an empty value
instead of check definition.
A defined but empty variable under all these conditions results errors.

Fix 'warning: egrep is obsolescent; using grep -E'

This package must always be installed in chroot in one transaction with
basesystem so that the correct package is installed.

Images building from the generated profile will have mkimage-profiles
commit information.

make-aptbox is needed to check package lists only.

All variables can be overridden.

It was broken сommit 676aac35

It was a mistake to add branding package to the initialized chroot. There
were no problems until the package had dependencies. Now, when most branding
has a dependence on alt-os-release, chroot initialization broke.
See also ALT bug 41570.
Branding needed to be added to PACKAGES_REQUIRED_INITROOT so that it is
installed with basesystem.

...otherwise:

$ make QUIET=1 REPORT=1 THE_APT_CONF=branch BRANDING=alt-starterkit ...
/bin/sh: line 5: [: too many arguments
/bin/sh: line 28: [: too many arguments

This reverts commit 366cb49d.
.gitignore is needed for packaging empty catalogs to the profile archive.

The parameter determines use of QEMU or not, if the target architecture
does not correspond to the host architecture.
By default, the parameter is on (Value 1).
For architectures that do not support QEMU (e2k), the option is turned off.

Aptbox is not initialized, so build time is reduced.

mkimage to run сlean/distclean successfully requires .work/.cache
and .work/.out directories.

This reverts commit 83e0b913.
However, it is not make clean is executed, but the make distclean.

This will allow apt to be request before/without the hasher is created.

Requires support at mkimage.

build.log does not exist when they run, because the build directory
is no longer created to run them.

The build directory is normally removed after make clean.

See-also: https://bugzilla.altlinux.org/show_bug.cgi?id=40148

make distclean should be launched after copying the log when
debugging is enabled.

Previously, you had to specify two parameters MKIMAGE_PREFIX and
GLOBAL_PREFIX with the same value - the path to mkimage. And this
behavior has not been documented. The GLOBAL_PREFIX variable is
defined in mkimage in config.mk and rules.mk.

Because of this, distclean did not work. Only the symlink was
removed.

For riscv64 available grub-efi.
Needed added support for mkimage (mki-copy-efiboot-chrooted).