Bug#1066668: sphinxtrain: FTBFS: lexicon.c:202:19: error: implicit declaration of function ‘str2words’ [-Werror=implicit-function-declaration]

[Lucas Nussbaum]

Source: sphinxtrain
Version: 1.0.8+5prealpha+1-5
Severity: serious
Justification: FTBFS
Tags: trixie sid ftbfs
User: lucas at debian.org
Usertags: ftbfs-20240313 ftbfs-trixie ftbfs-impfuncdef

Hi,

During a rebuild of all packages in sid, your package failed to build
on amd64.

This is most likely caused by a change in dpkg 1.22.6, that enabled
-Werror=implicit-function-declaration. For more information, see
https://wiki.debian.org/qa.debian.org/FTBFS#A2024-03-13_-Werror.3Dimplicit-function-declaration

Relevant part (hopefully):
> /bin/bash ../../../libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I../../../include   -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/x86_64-linux-gnu -I/usr/include/x86_64-linux-gnu/sphinxbase  -I../../../include -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fPIC -DPIC -c -o lexicon.lo lexicon.c
> libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../../../include -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/x86_64-linux-gnu -I/usr/include/x86_64-linux-gnu/sphinxbase -I../../../include -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fPIC -DPIC -c ck_seg.c  -fPIC -DPIC -o .libs/ck_seg.o
> libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../../../include -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/x86_64-linux-gnu -I/usr/include/x86_64-linux-gnu/sphinxbase -I../../../include -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fPIC -DPIC -c best_q.c  -fPIC -DPIC -o .libs/best_q.o
> libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../../../include -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/x86_64-linux-gnu -I/usr/include/x86_64-linux-gnu/sphinxbase -I../../../include -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fPIC -DPIC -c acmod_set.c  -fPIC -DPIC -o .libs/acmod_set.o
> libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../../../include -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/x86_64-linux-gnu -I/usr/include/x86_64-linux-gnu/sphinxbase -I../../../include -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fPIC -DPIC -c cvt2triphone.c  -fPIC -DPIC -o .libs/cvt2triphone.o
> libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../../../include -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/x86_64-linux-gnu -I/usr/include/x86_64-linux-gnu/sphinxbase -I../../../include -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fPIC -DPIC -c dtree.c  -fPIC -DPIC -o .libs/dtree.o
> libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../../../include -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/x86_64-linux-gnu -I/usr/include/x86_64-linux-gnu/sphinxbase -I../../../include -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fPIC -DPIC -c heap.c  -fPIC -DPIC -o .libs/heap.o
> libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../../../include -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/x86_64-linux-gnu -I/usr/include/x86_64-linux-gnu/sphinxbase -I../../../include -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fPIC -DPIC -c lexicon.c  -fPIC -DPIC -o .libs/lexicon.o
> libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../../../include -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/x86_64-linux-gnu -I/usr/include/x86_64-linux-gnu/sphinxbase -I../../../include -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fPIC -DPIC -c itree.c  -fPIC -DPIC -o .libs/itree.o
> lexicon.c: In function ‘lexicon_read’:
> lexicon.c:202:19: error: implicit declaration of function ‘str2words’ [-Werror=implicit-function-declaration]
>   202 |         n_phone = str2words(line->buf, NULL, 0) - 1;
>       |                   ^~~~~~~~~
> libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../../../include -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/x86_64-linux-gnu -I/usr/include/x86_64-linux-gnu/sphinxbase -I../../../include -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fPIC -DPIC -c ck_seg.c -o ck_seg.o >/dev/null 2>&1
> cc1: some warnings being treated as errors
> make[4]: *** [Makefile:442: lexicon.lo] Error 1


The full build log is available from:
http://qa-logs.debian.net/2024/03/13/sphinxtrain_1.0.8+5prealpha+1-5_unstable.log

All bugs filed during this archive rebuild are listed at:
https://bugs.debian.org/cgi-bin/pkgreport.cgi?tag=ftbfs-20240313;users=lucas@debian.org
or:
https://udd.debian.org/bugs/?release=na&merged=ign&fnewerval=7&flastmodval=7&fusertag=only&fusertagtag=ftbfs-20240313&fusertaguser=lucas@debian.org&allbugs=1&cseverity=1&ctags=1&caffected=1#results

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

If you reassign this bug to another package, please mark it as 'affects'-ing
this package. See https://www.debian.org/Bugs/server-control#affects

If you fail to reproduce this, please provide a build log and diff it with mine
so that we can identify if something relevant changed in the meantime.