Hello,

I am brand new to make and build system in general and NetBSD in
specific. But I need to build the NetBSD source tree, I only need the
userland binaries and filesystem only, using the toolchains already
existed. How do I do that? I read through the NetBSD build.sh and some
document, like BUILDING, or bsd.README, my impression is it is a
complicated build/make infrastructure. It clearly says it will build
the tools itself and use that tools to build the source tree, but that
I don't need, so how do I skip that step and let it know to use my
toolchain? I try setting EXTERNAL_TOOLCHAIN in build.sh but it does
not seem to work. And as this issue becomes more urgernt, please
somebody give me a tutorial about the over all structure and how the
build work in NetBSD, can someone help? or any reference on the web?I
tried search around but there are not much luck so far.

Thank you very much,

-Luong