• Add SRC_FORCE_CHECKOUT configuration option to force svn to checkout the src/ tree into a directory that contains files/directories, such as a case where a custom kernel configuration file is specified.

• Allow specification of multiple KERNCONFs to pass to 'make release'.

• Move evaluation of NODOCS/NOPORTS earlier, and set based on how the release process expects these options to be evaluated.

• Wrap KERNCONF specification in double quotes, and use 'eval' so multiple kernel configurations do not cause the build to fail in strange ways.

• Set WITHOUT_X11 for the port build flags for the documentation toolchain build. Also run 'clean distclean' targets during port build.

PR: 180192
Submitted by: Anes Mukhametov
MFC after: 3 days
Approved by: kib (mentor, implicit)