Bug#976947: mapbox-variant: FTBFS on ppc64el (arch:all-only src pkg): g++: error: unrecognized command-line option =?UTF-8?Q?=E2=80=98-march=3Dnative=E2=80=99; ?= did you mean ‘-mcpu=native’?

[Lucas Nussbaum]

Source: mapbox-variant
Version: 1.2.0-1
Severity: serious
Justification: FTBFS on ppc64el
Tags: bullseye sid ftbfs
Usertags: ftbfs-20201209 ftbfs-bullseye ftbfs-ppc64el

Hi,

During a rebuild of all packages in sid, your package failed to build
on ppc64el. At the same time, it did not fail on amd64.

I'm marking this bug as severity:serious since your package has only
Architecture:all binary packages, and should thus, in theory, build
everywhere. Failure to build on ppc64el might indicate a serious issue
in this package or in another package.

But feel free to downgrade or close if you believe that this is only a
build-time issue. (I would personnally prefer a severity:minor bug just to
track that the package can only be built on specific architectures.)

Relevant part (hopefully):
> make[1]: Entering directory '/<<PKGBUILDDIR>>'
> mkdir -p ./out
> mkdir -p ./out
> mkdir -p ./out
> mkdir -p ./out
> g++ -o out/bench-variant test/bench_variant.cpp -I./include -isystem test/include -std=c++11 -Werror -Wall -Wextra -pedantic -Wformat=2 -Wsign-conversion -Wshadow -Wunused-parameter -O3 -DNDEBUG -march=native -DSINGLE_THREADED -fvisibility-inlines-hidden -fvisibility=hidden -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -pthread -Wl,-z,relro 
> g++ -o out/unique_ptr_test test/unique_ptr_test.cpp -I./include -isystem test/include -std=c++11 -Werror -Wall -Wextra -pedantic -Wformat=2 -Wsign-conversion -Wshadow -Wunused-parameter -O3 -DNDEBUG -march=native -DSINGLE_THREADED -fvisibility-inlines-hidden -fvisibility=hidden -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -pthread -Wl,-z,relro 
> mkdir -p ./out
> g++ -o out/recursive_wrapper_test test/recursive_wrapper_test.cpp -I./include -isystem test/include -std=c++11 -Werror -Wall -Wextra -pedantic -Wformat=2 -Wsign-conversion -Wshadow -Wunused-parameter -O3 -DNDEBUG -march=native -DSINGLE_THREADED -fvisibility-inlines-hidden -fvisibility=hidden -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -pthread -Wl,-z,relro 
> g++ -o out/binary_visitor_test test/binary_visitor_test.cpp -I./include -isystem test/include -std=c++11 -Werror -Wall -Wextra -pedantic -Wformat=2 -Wsign-conversion -Wshadow -Wunused-parameter -O3 -DNDEBUG -march=native -DSINGLE_THREADED -fvisibility-inlines-hidden -fvisibility=hidden -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -pthread -Wl,-z,relro 
> mkdir -p ./out
> g++ -o out/lambda_overload_test test/lambda_overload_test.cpp -I./include -isystem test/include -std=c++11 -Werror -Wall -Wextra -pedantic -Wformat=2 -Wsign-conversion -Wshadow -Wunused-parameter -O3 -DNDEBUG -march=native -DSINGLE_THREADED -fvisibility-inlines-hidden -fvisibility=hidden -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -pthread -Wl,-z,relro 
> g++ -o out/hashable_test test/hashable_test.cpp -I./include -isystem test/include -std=c++11 -Werror -Wall -Wextra -pedantic -Wformat=2 -Wsign-conversion -Wshadow -Wunused-parameter -O3 -DNDEBUG -march=native -DSINGLE_THREADED -fvisibility-inlines-hidden -fvisibility=hidden -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -pthread -Wl,-z,relro 
> g++: error: unrecognized command-line option ‘-march=native’; did you mean ‘-mcpu=native’?
> make[1]: *** [Makefile:78: out/binary_visitor_test] Error 1

The full build log is available from:
   http://qa-logs.debian.net/2020/12/09/mapbox-variant_1.2.0-1_unstable.log

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 marking 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 me
so that we can identify if something relevant changed in the meantime.

About the archive rebuild: The rebuild was done on a Power8 cluster part of the
Grid'5000 testbed. Hardware specs: https://www.grid5000.fr/w/Grenoble:Hardware#drac