#1153055 arb: FTBFS on non-x86: gcc: error: unrecognized command-line option '-msse3'

Package:
src:arb
Source:
src:arb
Submitter:
Sebastian Ramacher
Date:
2026-11-04 20:55:03 UTC
Severity:
normal
Tags:
#1153055#5
Date:
2026-11-04 20:54:08 UTC
From:
To:
Source: arb
Version: 7.0+ds-1
Severity: serious
Tags: ftbfs
Justification: fails to build from source (but built successfully in the past)
X-Debbugs-Cc: sramacher@debian.org

Dear maintainer,

arb FTBFS on !amd64 !i386:

(DIR=builddir.AVX.PTHREADS; \
rm -rf $DIR &&\
mkdir $DIR &&\
tar -C $DIR --strip-components=1 -xzf sativa-RAxML-8.2.3.tar.gz &&\
arb_sed -i 's/-march=native//' $DIR/Makefile* &&\
arb_sed -i 's/^CFLAGS = /CFLAGS = -std=gnu17 -fcommon -Wno-error=implicit-int -Wno-error=implicit-function-declaration /' $DIR/Makefile*)
touch unpack.AVX.PTHREADS.stamp -r sativa-RAxML-8.2.3.tar.gz
( MAKEFLAGS= make -C builddir.SSE3.PTHREADS -f Makefile.SSE3.PTHREADS.gcc ) 2>&1 | grep -vi ' warning: '
make[8]: Entering directory '/build/reproducible-path/arb-7.0+ds/GDE/SATIVA/builddir.SSE3.PTHREADS'
gcc  -std=gnu17 -fcommon -Wno-error=implicit-int -Wno-error=implicit-function-declaration -D_USE_PTHREADS -D__SIM_SSE3 -O2 -D_GNU_SOURCE -msse3 -fomit-frame-pointer -funroll-loops   -Wdate-time -D_FORTIFY_SOURCE=2  -c -o axml.o axml.c
gcc: error: unrecognized command-line option '-msse3'
make[8]: *** [<builtin>: axml.o] Error 1
make[8]: Leaving directory '/build/reproducible-path/arb-7.0+ds/GDE/SATIVA/builddir.SSE3.PTHREADS'
cp builddir.SSE3.PTHREADS/raxmlHPC-* /build/reproducible-path/arb-7.0+ds/bin/raxmlHPC8-sativa-SSE3.PTHREADS
cp: cannot stat 'builddir.SSE3.PTHREADS/raxmlHPC-*': No such file or directory
make[7]: *** [Makefile:60: /build/reproducible-path/arb-7.0+ds/bin/raxmlHPC8-sativa-SSE3.PTHREADS] Error 1
make[7]: Leaving directory '/build/reproducible-path/arb-7.0+ds/GDE/SATIVA'
make[6]: *** [Makefile:106: SATIVA/SATIVA.dummy] Error 1
make[6]: *** Waiting for unfinished jobs....

See
https://buildd.debian.org/status/fetch.php?pkg=arb&arch=arm64&ver=7.0%2Bds-1&stamp=1792766011&raw=0
for the full build log.

Cheers