Bug#1066261: lintian: FTBFS: hello.c:9:5: error: implicit declaration of function 'strcpy' [-Werror=implicit-function-declaration]
Source: lintian
Version: 2.117.0
Severity: serious
Justification: FTBFS
Tags: trixie sid ftbfs
User: lucas@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):
> cc -o strong \
> -Wdate-time -D_FORTIFY_SOURCE=2 \
> -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>/debian/test-out/packages/checks/binaries/hardening/binaries-hardening/binaries-hardening-1.0=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection \
> -Wl,-z,relro -Wl,-z,now \
> hello.c
> hello.c: In function 'report':
> hello.c:9:5: error: implicit declaration of function 'strcpy' [-Werror=implicit-function-declaration]
> 9 | strcpy(buf, string);
> | ^~~~~~
> hello.c:2:1: note: include '<string.h>' or provide a declaration of 'strcpy'
> 1 | #include <stdio.h>
> +++ |+#include <string.h>
> 2 |
> hello.c:9:5: warning: incompatible implicit declaration of built-in function 'strcpy' [-Wbuiltin-declaration-mismatch]
> 9 | strcpy(buf, string);
> | ^~~~~~
> hello.c:9:5: note: include '<string.h>' or provide a declaration of 'strcpy'
> cc1: some warnings being treated as errors
> make[2]: *** [Makefile:11: all] Error 1
The full build log is available from:
http://qa-logs.debian.net/2024/03/13/lintian_2.117.0_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.
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