toolchain/58673: creation of usr/share/doc/{usd,psd}/title.* are not parallel make save

[martin%NetBSD.org@localhost]

>Number:         58673
>Category:       toolchain
>Synopsis:       creation of usr/share/doc/{usd,psd}/title.* are not parallel make save
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Sep 15 11:25:00 +0000 2024
>Originator:     Martin Husemann
>Release:        NetBSD 10.99.12
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD martins.aprisoft.de 10.99.12 NetBSD 10.99.12 (GENERIC) #244: Sat Sep 14 08:52:17 CEST 2024 martin%martins.aprisoft.de@localhost:/home/martin/current/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:

Local builds sometimes create spurious issues in the mtree tests, which
typically is an indicator of parallel build races. Example output:

Fail: incorrect exit status: 2, expected: 0
stdout:
usr/share/doc/psd/title.txt: 
	sha256 (0x3cfd1a9d9bf060a372a9c162eb31e17ed5b0cb531940db66a6cf384aa610ee86, 0xfb5ad5674beff973cd8ac6a1e24c4b50093ff7d45e536cc15f3ab960dc7abdd5)
usr/share/doc/psd/title.ps.gz: 
	size (15175, 15177)
	sha256 (0x20d236dc0442a12e0a844b2884cdd35f3d0828caa50e69dc6f4fc453fb4fc8af, 0x770fa1020ac527371a14ac1fa8a2150db34d77de3be3b558ca4e200c5f97cbb6)
usr/share/doc/usd/title.txt: 
	sha256 (0xc13905a8ed705ee0f940b9ff5967ad9a2e596bfa3dbbbcf40ea8a14bc26c8088, 0x0a08f27cec7ab7628651251b83447a58c7d7f211c257a5f941e7caeb49fdcc32)
usr/share/doc/usd/title.ps.gz: 
	size (15278, 15280)
	sha256 (0x4080fb12dd2a1407dd08bc75cec81ee3ad4cf8c2ab351de2e4399ef28721e7ce, 0x1b870c90bd857d9352e6b5cc4b20ef85e18b632d046810c1b417d92df4b6e547)

not the incomplete file sizes on the left side.

>How-To-Repeat:

build.sh -u -j and have bad luck (maybe the -u is not needed)

>Fix:

n/a