lib/60418: -current rump/wg(4) build failure

>Number:         60418
>Category:       lib
>Synopsis:       -current wg(4) build failure
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jul 06 04:40:00 +0000 2026
>Originator:     bch
>Release:        NetBSD 11.99.6
>Organization:
	method logic digital
>Environment:
System: NetBSD katy 11.99.6 NetBSD 11.99.6 (GENERIC) #528: Sat Jun 27 21:17:15 PPT 2026 root@katy:/usr/obj/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
	Build failure trace:


        dependall ===> lib/../sys/rump/net/lib/libtun
        dependall ===> lib/../sys/rump/net/lib/libvlan
        dependall ===> lib/../sys/rump/net/lib/libvether
        dependall ===> lib/../sys/rump/net/lib/libwg
            compile  libwg/if_wg.o
            compile  libwg/if_wg.pico
            compile  libwg/if_wg.po
            compile  libwg/wg_component.pico
            compile  libwg/wg_user.pico
              build  libwg/librumpnet_wg.a
            compile  libwg/if_wg.go
            compile  libwg/wg_user.go
        /usr/src/sys/rump/net/lib/libwg/wg_user.c:45:10: fatal error: assert.h: No such file or directory
           45 | #include <assert.h>
              |          ^~~~~~~~~~
        compilation terminated.

        *** Failed target:  wg_user.go
        *** Failed command: /usr/src/obj/tooldir.NetBSD-11.99.6-amd64/bin/x86_64--netbsd-gcc -O2 -fno-delete-null-pointer-checks -ffreestanding -fno-strict-aliasing -mno-red-zone -mno-mmx -mno-sse -mno-avx -msoft-float -std=gnu11 -Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wno-sign-compare -Wsystem-headers -Wno-traditional -Wa,--fatal-warnings -Wreturn-type -Wswitch -Wshadow -Wcast-qual -Wwrite-strings -Wextra -Wno-unused-parameter -Wno-sign-compare -Werror -Wno-address-of-packed-member -Wno-format-zero-length -Wno-pointer-sign -fPIE -fstack-protector -Wstack-protector --param ssp-buffer-size=1 --sysroot=/usr/src/obj/destdir.amd64 -DCOMPAT_50 -DCOMPAT_60 -DCOMPAT_70 -DCOMPAT_80 -DCOMPAT_90 -DCOMPAT_100 -DCOMPAT_110 -nostdinc -I/usr/src/sys/rump/net/lib/libwg -I. -I/usr/
 src/sys/rump/net/lib/libwg/../../../../../common/include -I/usr/src/sys/rump/net/lib/libwg/../../../include -I/usr/src/sys/rump/net/lib/libwg/../../../include/opt -I/usr/src/sys/rump/net/lib/libwg/.
 ./../../../arch -I/usr/src/sys/rump/net/lib/libwg/../../../.. -DDIAGNOSTIC -DDEBUG -DKTRACE -imacros /usr/src/sys/rump/net/lib/libwg/../../../include/opt/opt_rumpkernel.h -D_FORTIFY_SOURCE=2 -c -DDEBUG -g /usr/src/sys/rump/net/lib/libwg/wg_user.c -o wg_user.go
        *** Error code 1

        Stop.
        nbmake[7]: stopped making "realall" in /usr/src/sys/rump/net/lib/libwg

        *** Failed target:  dependall
        *** Failed command: cd "/usr/src/sys/rump/net/lib/libwg"; /usr/src/obj/tooldir.NetBSD-11.99.6-amd64/bin/nbmake realall
        *** Error code 1

        Stop.
        nbmake[6]: stopped making "dependall" in /usr/src/sys/rump/net/lib/libwg

        *** Failed target:  dependall-libwg
        *** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; shift; case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) this="lib/../sys/rump/net/lib/"; real="/usr/src/sys/rump/net/lib" ;; *) this="lib/../sys/rump/net/lib/${dir}/"; real="/usr/src/sys/rump/net/lib/${dir}" ;; esac; show=${this:-.}; echo "${target} ===> ${show%/}${1:+ (with: $@)}"; cd "${real}" && /usr/src/obj/tooldir.NetBSD-11.99.6-amd64/bin/nbmake _THISDIR_="${this}" "$@" ${target}; }; _makedirtarget libwg dependall
        *** Error code 1

        Stop.
        nbmake[5]: stopped making "dependall" in /usr/src/sys/rump/net/lib

        *** Failed target:  dependall-../sys/rump/net/lib
        *** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; shift; case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) this="lib/"; real="/usr/src/lib" ;; *) this="lib/${dir}/"; real="/usr/src/lib/${dir}" ;; esac; show=${this:-.}; echo "${target} ===> ${show%/}${1:+ (with: $@)}"; cd "${real}" && /usr/src/obj/tooldir.NetBSD-11.99.6-amd64/bin/nbmake _THISDIR_="${this}" "$@" ${target}; }; _makedirtarget ../sys/rump/net/lib dependall
        *** Error code 1

        Stop.
        nbmake[4]: stopped making "dependall-libp2k dependall-../sys/rump/dev/lib dependall-../sys/rump/fs/lib dependall-../sys/rump/kern/lib dependall-../sys/rump/net/lib dependall-lua dependall-../external/gpl3/gcc/lib/libquadmath dependall-../external/bsd/pam-u2f/lib" in /usr/src/lib


>How-To-Repeat:
        ./build.sh -u -x distribution
>Fix: