Re: FYI: make's "max_jobs" needs to be separated from -j (now?)

David Wolfskill wrote:
> I have been tracking stable/ and head (daily, with a few exceptions) for
> many years, now.  Over time, I set up a set of ([t]csh) aliases to
> simplify the exercise for me.
> 
> Until yesterday, the "make -j${max_jobs} buildworld" construct had
> worked without issue, but (yesterday), the invocation failed quite
> quickly:
> 
> | Tue Oct  1 11:54:18 UTC 2024
> | --- buildworld ---
> | make[1]: "/usr/src/Makefile.inc1" line 362: SYSTEM_COMPILER: Determined that CC=cc matches the source tree.  Not bootstrapping a cross-compiler.
> | make[1]: "/usr/src/Makefile.inc1" line 367: SYSTEM_LINKER: Determined that LD=ld matches the source tree.  Not bootstrapping a cross-linker.
> | --------------------------------------------------------------
> | >>> World build started on Tue Oct  1 11:54:18 UTC 2024
> | --------------------------------------------------------------
> | >>> Deleting stale files in build tree...
> |         0.14 real         0.23 user         0.10 sys
> | *** [_cleanworldtmp] Error code 6
> | 
> | make[1]: stopped making "buildworld" in /usr/src
> | .ERROR_TARGET='_cleanworldtmp'
> | .ERROR_META_FILE=''
> 
> On a bit of a whim, I tried adjusting the "max_jobs" values (downward),
> which didn't help, but removing the "-j14" entirely did not produce a
> failure.
> 
> On the other hand, rebuilding clang/llvm with a single core on a laptop
> (when I actually want to be able to use the laptop later in the day
> while I'm at work) didn't seem productive.
> 
> A bit more rather randomly "trying stuff" yielded the result that while
> 
> 	make -j14 buildworld
> 
> failed (as described above),
> 
> 	make -j 14 buildworld
> 
> carries on as before -- it's building lib/clang (and using multiple
> cores to do so)....  :-}

Just got the same error, but both invocations didn't work, and I noticed
that bootstrapped version of mtree failed to run because of (now)
missing libmd.so.6.  I think it's not really related to whitespace
between -j and jobs number, rather you had to (re)build the bootstrap tools.