First scons build failed

[GToad]

On ubuntu 18.04, I enter ./build and use "scons", the error info :
System-Product-Name:~/NUL/build$ scons
scons: Reading SConscript files ...
Checking whether the C++ compiler works... yes
Checking whether the C compiler works... yes
Check if we can link a program...no
Your compiler cannot build 32-bit host utilities. m(
No target_arch option given. Defaulting to core2.
Check if compiler supports "-std=gnu++0x"... yes
Check if compiler supports "-std=gnu99"... yes
Check if compiler supports "-mpreferred-stack-boundary=4 -mincoming-stack-boundary=4"... yes
Check if compiler supports "-fno-threadsafe-statics"... yes

scons: warning: doxygen executable (doxygen) not found - documentation won't be built
File "/home/chenjh/NUL/michal/doc/SConscript", line 43, in
AttributeError: 'filter' object has no attribute 'name':
File "/home/chenjh/NUL/build/SConstruct", line 20:
SConscript('SConscript')
File "/usr/lib/scons/SCons/Script/SConscript.py", line 660:
return method(*args, **kw)
File "/usr/lib/scons/SCons/Script/SConscript.py", line 597:
return _SConscript(self.fs, files, **subst_kw)
File "/usr/lib/scons/SCons/Script/SConscript.py", line 286:
exec(compile(scriptdata, scriptname, 'exec'), call_stack[-1].globals)
File "/home/chenjh/NUL/base/SConscript", line 205:
SConscript(Glob('/SConscript'))
File "/usr/lib/scons/SCons/Script/SConscript.py", line 660:
return method(*args, **kw)
File "/usr/lib/scons/SCons/Script/SConscript.py", line 597:
return _SConscript(self.fs, *files, **subst_kw)
File "/usr/lib/scons/SCons/Script/SConscript.py", line 286:
exec(compile(scriptdata, scriptname, 'exec'), call_stack[-1].globals)
File "/home/chenjh/NUL/base/host/SConscript", line 6:
nul.Lib(target_env, 'host',
File "/home/chenjh/NUL/base/tools/nul.py", line 53:
return env.StaticLibrary(output + "/lib/%s" % name,
File "/usr/lib/scons/SCons/Environment.py", line 255:
return MethodWrapper.call(self, target, source, *args, **kw)
File "/usr/lib/scons/SCons/Environment.py", line 219:
return self.method(*nargs, **kwargs)
File "/usr/lib/scons/SCons/Builder.py", line 651:
return self._execute(env, target, source, OverrideWarner(kw), ekw)
File "/usr/lib/scons/SCons/Builder.py", line 548:
source = self.src_builder_sources(env, source, overwarn)
File "/usr/lib/scons/SCons/Builder.py", line 757:
match_suffix = match_src_suffix(s.name)

Can U help? There's python2.7 on ubuntu and I've install the software in prerequisites.

[blitz]

Unfortunately, this project hasn't been actively developed in many years, so you are a bit on your own here.

[blitz]

@GToad You might want to look into https://genode.org/ for an actively maintained open source project in this broad category.