https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=285494
Bug ID: 285494
Summary: stable/14: "ISO C99 and later do not support implicit
function declarations" build error after recent (Mon,
17 Mar 2025) sound related commits (33529d6ad44d -
4ed0ca91a309)
Product: Base System
Version: 14.2-STABLE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: discipl...@tiscali.it
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
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