After successfully building world+kernel at git 6207ca7b76b0, I updated the source tree to 64610df59348, but the build is now failing with the following error: cc -target x86_64-unknown-freebsd14.2 --sysroot=/usr/obj/usr/src/amd64.amd64/tmp -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin -O2 -pipe -fno-common -I/usr/src/sys -fPIE -g -gz=zlib -MD -MF.depend.pcm_read_write.pcm_read_write.o -MTpcm_read_write.o -std=gnu99 -Wno-format-zero-length -fstack-protector-strong -Wsystem-headers -Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wunused-parameter -Wcast-align -Wchar-subscripts -Wnested-externs -Wold-style-definition -Wno-pointer-sign -Wdate-time -Wmissing-variable-declarations -Wthread-safety -Wno-empty-body -Wno-string-plus-int -Wno-unused-const-variable -Wno-error=unused-but-set-parameter -Wno-error=cast-function-type-mismatch -Qunused-arguments -Wno-cast-align -c /usr/src/tests/sys/sound/pcm_read_write.c -o pcm_read_write.o In file included from /usr/src/tests/sys/sound/pcm_read_write.c:24: /usr/src/sys/dev/sound/pcm/pcm.h:196:3: error: call to undeclared function '__assert_unreachable'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] 196 | __assert_unreachable(); | ^ /usr/src/sys/dev/sound/pcm/pcm.h:324:3: error: call to undeclared function '__assert_unreachable'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] 324 | __assert_unreachable(); | ^ /usr/src/sys/dev/sound/pcm/pcm.h:371:3: error: call to undeclared function '__assert_unreachable'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] 371 | __assert_unreachable(); | ^ /usr/src/sys/dev/sound/pcm/pcm.h:373:1: error: non-void function does not return a value in all control paths [-Werror,-Wreturn-type] 373 | } | ^ 4 errors generated. *** Error code 1 Stop. make: stopped in /usr/src/tests/sys/sound
It seems that the commit 235fe911df59 on stable/14 "include: add a userland version of __assert_unreachable" fixed the build. I think that the PR could be closed.