proposed project structure

build.log

user@local giza-sdk# bin/sdk build

scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Building targets ...

Building SDK compiler...

[cc] host  compiler1.c
[cc] host  compiler2.c
[cc] host  compiler3.c

Building SDK linker...

[cc] host  linker1.c
[cc] host  linker2.c
[cc] host  linker3.c

Building Base System...

Building Kernel
[cc] base  startup.c
[cc] base  syscall.c
[cc] base  kernel.c

Building C Runtime
[cc] base  syscall.c
[cc] base  string.c
[cc] base  handle.c
[cc] base  directory.c
[cc] base  file.c

Building Shell
[cc] base  shell.c
[cc] base  startup.c
[cc] base  shellmain.c

scons: done building targets.

configure.log

user@local giza-sdk# bin/sdk configure

SDK Build Configuration Manager (BCM)-

Checking System CPU......... AMD FX(tm)-8350 Eight-Core Processor, Stepping 0
Checking Target............. MS-DOS
Checking System Compiler.... gcc
Verifying System Compiler... OK

Writing SDK configuration... Done

hierarchy.txt

giza-sdk-src/
	build/
		(built files)
	
	sdk/						(uses system compiler)
		targets/
			(SDK target files)

		compiler/
			(compiler source)

		linker/
			(compiler source)

		assembler/
			(compiler source)

	base/						(uses SDK compiler)
		subproj1/
			
		subproj2/
		
		...