1491157 - Firefox nightly does not compile with clang on Archlinux

Status: RESOLVED INVALID

(Firefox Build System :: General, defect)

Description

[TestMode]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:64.0) Gecko/20100101 Firefox/61.0
Build ID: 20180825150157

Steps to reproduce:

Despite the recent news that Firefox works now with clang it does not compile with clang on Archlinux. After long compilation getting errors like


undefined reference to `std::string
undefined reference to `std::ctype
undefined reference to `std::ios_base::ios_base
undefined reference to `__cxa_pure_virtual'

Adding --stdlib=libstdc++ to CPPFLAGS makes no difference. mozconfig below


export CC=clang
export CXX=clang++

mk_add_options MOZ_MAKE_FLAGS="-j3"

ac_add_options --enable-optimize
ac_add_options --enable-application=browser

ac_add_options --prefix=/usr
ac_add_options --enable-release
ac_add_options --disable-nodejs
ac_add_options --disable-elf-hack
ac_add_options --disable-jemalloc
ac_add_options --disable-sandbox

ac_add_options --disable-dbus
ac_add_options --enable-rust-simd
ac_add_options  --disable-synth-speechd

# Branding
ac_add_options --enable-official-branding
ac_add_options --enable-update-channel=release
ac_add_options --with-distribution-id=org.archlinux
export MOZILLA_OFFICIAL=1
export MOZ_TELEMETRY_REPORTING=0
export MOZ_ADDON_SIGNING=1
export MOZ_REQUIRE_SIGNING=1
export MOZ_TELEMETRY_ON_BY_DEFAULT=0

# System libraries
ac_add_options --with-system-zlib
ac_add_options --with-system-bz2
ac_add_options --without-system-icu
ac_add_options --with-system-jpeg
ac_add_options --with-system-libvpx
ac_add_options --with-system-libevent

ac_add_options --disable-system-nspr
ac_add_options --disable-system-nss
ac_add_options --enable-system-sqlite
ac_add_options --enable-system-ffi

ac_add_options --with-system-png

ac_add_options --disable-accessibility
ac_add_options --disable-gamepad
ac_add_options --disable-tests
ac_add_options --disable-necko-wifi
ac_add_options --disable-gconf
ac_add_options --disable-webrtc
ac_add_options --disable-eme
# Features
ac_add_options --enable-alsa
ac_add_options --disable-jack
ac_add_options --disable-pulseaudio
ac_add_options --disable-startup-notification
ac_add_options --disable-crashreporter
ac_add_options --disable-updater
ac_add_options --enable-default-toolkit=cairo-gtk3-wayland

Comment 1

[Sylvestre Ledru [:Sylvestre]]

Having the command line which generates the error would help
./mach build -v 
will give you that info.

Comment 2

[Mike Hommey [:glandium]]

Unrelated to the error, but:

(In reply to TestMode from comment #0)
> ac_add_options --disable-elf-hack
> ac_add_options --disable-jemalloc
> ac_add_options --disable-sandbox

Don't do this.

Comment 3

[TestMode]

>>Having the command line which generates the error would help

I've compiled with gcc already, but on clang it was failing with /usr/bin/ld on libopenh264, libclearkey, elfhack, jemalloc, sandbox, firefox, anything with standalone c++ library or executable

Comment 4

[Sylvestre Ledru [:Sylvestre]]

We need more information to be able to help you debug.

Comment 5

[TestMode]

According to https://bugzilla.mozilla.org/show_bug.cgi?id=1489096 clang 7 is needed to build firefox so compilation should abort on earlier versions.

Comment 6

[Sylvestre Ledru [:Sylvestre]]

No, this is what we use but previous version of clang should still work.

Comment 7

[TestMode]

It works now with clang 7, though there is little difference in performance. Issue can be closed