[Pkg-nagios-devel] Bug#1066576: nagios-plugins-contrib: FTBFS: check_memcached.l:339:37: error: implicit declaration of function ‘asprintf’; did you mean ‘vsprintf’? [-Werror=implicit-function-declaration]

[Lucas Nussbaum]

Source: nagios-plugins-contrib
Version: 45.20231212
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):
> cc -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>/check_memcached=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -c -o check_memcached.o check_memcached.c
> check_memcached.l:155:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
>   155 | yywrap() {
>       | ^~~~~~
> check_memcached.l: In function ‘check_memcached’:
> check_memcached.l:339:37: error: implicit declaration of function ‘asprintf’; did you mean ‘vsprintf’? [-Werror=implicit-function-declaration]
>   339 |                         str_bytes = asprintf(&nagios_service_output,"Could not store updated stats object - %s; ",
>       |                                     ^~~~~~~~
>       |                                     vsprintf
> check_memcached.l: In function ‘usage’:
> check_memcached.l:603:16: warning: format ‘%llu’ expects argument of type ‘long long unsigned int’, but argument 2 has type ‘uint64_t’ {aka ‘long unsigned int’} [-Wformat=]
>   603 |         printf("\t-E  ... Generate warning if number of evictions exceeds this threshold. 0=disable. (default: %llu)\n",max_evictions);
>       |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~
>       |                                                                                                                         |
>       |                                                                                                                         uint64_t {aka long unsigned int}
> cc1: some warnings being treated as errors
> make[3]: *** [<builtin>: check_memcached.o] Error 1


The full build log is available from:
http://qa-logs.debian.net/2024/03/13/nagios-plugins-contrib_45.20231212_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.