Can't build pkgsrc after upgrade to amd64 (x86-64)

[pimin inwa <pimininca%gmail.com@localhost>]

I recently upgraded this dual cpu system:

cpu0: "Intel(R) Xeon(R) CPU E5-2630 v3 @ 2.40GHz"
cpu0: Intel Xeon E5-4600/2600/1600 v3, Xeon E7 v3 (Haswell-E), Core i7-59xx
Extreme (686-class), 2400.00 MHz
cpu0: family 0x6 model 0x3f stepping 0x2 (id 0x306f2)

to Netbsd 10 as shown here:
:
 uname  -a
NetBSD bigbox 10.99.11 NetBSD 10.99.11 (GENERIC) #0: Tue Jul 16 15:27:40
UTC 2024  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC
amd64

:cat /usr/pkg/etc/pkgin/repositories.conf
ftp://ftp.netbsd.org/pub/pkgsrc/packages/NetBSD/x86_64/10.0_2024Q1/All

: cat /usr/pkgsrc/CVS/Tag
Tpkgsrc-2024Q1

i ran cvs update -Pd in pkgsrc then:

(cd www/nginx && make clean cleandir reinstall)

which blew up in lang/LuaJIT2  with "...was built for a platform:" so I
tried building LiaJIT2 directly whhc repeated the blow up with:

(cd lang/LuaJIT2 && make clean cleandir install)