Bug#1066303: polylib: FTBFS: ./applications/testCompressParms.c:58:9: error: implicit declaration of function =?UTF-8?Q?=E2=80=98test=5FConstraints=5FRemove=5Fparm=5Feqs=E2=80=99; ?= did you mean ‘Constraints_Remove_parm_eqs’? [-Werror=implicit-function-declaration]

[Lucas Nussbaum]

Source: polylib
Version: 5.22.5-4+dfsg
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):
> gcc -DHAVE_CONFIG_H -I.  -DPOLYLIB_BITS=64 -I./include -Iinclude -Wdate-time -D_FORTIFY_SOURCE=2 -Wdate-time -D_FORTIFY_SOURCE=2  -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -c -o testCompressParms64-testCompressParms.o `test -f './applications/testCompressParms.c' || echo './'`./applications/testCompressParms.c
> ./applications/testCompressParms.c: In function ‘main’:
> ./applications/testCompressParms.c:58:9: error: implicit declaration of function ‘test_Constraints_Remove_parm_eqs’; did you mean ‘Constraints_Remove_parm_eqs’? [-Werror=implicit-function-declaration]
>    58 |   TEST( test_Constraints_Remove_parm_eqs(A, B) )
>       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ./applications/testCompressParms.c:36:28: note: in definition of macro ‘TEST’
>    36 | #define TEST(a) if (isOk = a) { \
>       |                            ^
> ./applications/testCompressParms.c:59:9: error: implicit declaration of function ‘test_Polyhedron_Remove_parm_eqs’; did you mean ‘Polyhedron_Remove_parm_eqs’? [-Werror=implicit-function-declaration]
>    59 |   TEST( test_Polyhedron_Remove_parm_eqs(A, B) )
>       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ./applications/testCompressParms.c:36:28: note: in definition of macro ‘TEST’
>    36 | #define TEST(a) if (isOk = a) { \
>       |                            ^
> ./applications/testCompressParms.c:60:9: error: implicit declaration of function ‘test_Constraints_fullDimensionize’; did you mean ‘Constraints_fullDimensionize’? [-Werror=implicit-function-declaration]
>    60 |   TEST( test_Constraints_fullDimensionize(A, B, 4) )
>       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ./applications/testCompressParms.c:36:28: note: in definition of macro ‘TEST’
>    36 | #define TEST(a) if (isOk = a) { \
>       |                            ^
> cc1: some warnings being treated as errors
> make[3]: *** [Makefile:2340: testCompressParms64-testCompressParms.o] Error 1


The full build log is available from:
http://qa-logs.debian.net/2024/03/13/polylib_5.22.5-4+dfsg_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.