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Revert "REVERT THIS: disable GCC build to speed up workflows"
This reverts commit 055005a.
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‎docker/debian/Dockerfile.gcc-12-bullseye‎

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FROM gcc:12-bullseye
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FROM buildpack-deps:bullseye
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## NOTE: EVERYTHING BELOW THIS COMMENT IS FROM
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## https://github.com/docker-library/gcc/blob/7070981b23d22d3ca790f87bff26f13f3614dd4c/12/Dockerfile
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RUN set -eux; \
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apt-get update; \
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apt-get install -y --no-install-recommends \
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# install abigail-tools so we can use abidiff later to verify that we don't break Debian packages
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abigail-tools \
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; \
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rm -rf /var/lib/apt/lists/*
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# https://gcc.gnu.org/mirrors.html
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ENV GPG_KEYS \
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# 1024D/745C015A 1999-11-09 Gerald Pfeifer <gerald@pfeifer.com>
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B215C1633BCA0477615F1B35A5B3A004745C015A \
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# 1024D/B75C61B8 2003-04-10 Mark Mitchell <mark@codesourcery.com>
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B3C42148A44E6983B3E4CC0793FA9B1AB75C61B8 \
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# 1024D/902C9419 2004-12-06 Gabriel Dos Reis <gdr@acm.org>
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90AA470469D3965A87A5DCB494D03953902C9419 \
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# 1024D/F71EDF1C 2000-02-13 Joseph Samuel Myers <jsm@polyomino.org.uk>
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80F98B2E0DAB6C8281BDF541A7C8C3B2F71EDF1C \
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# 2048R/FC26A641 2005-09-13 Richard Guenther <richard.guenther@gmail.com>
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7F74F97C103468EE5D750B583AB00996FC26A641 \
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# 1024D/C3C45C06 2004-04-21 Jakub Jelinek <jakub@redhat.com>
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33C235A34C46AA3FFB293709A328C3A2C3C45C06 \
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# 4096R/09B5FA62 2020-05-28 Jakub Jelinek <jakub@redhat.com>
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D3A93CAD751C2AF4F8C7AD516C35B99309B5FA62
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# https://gcc.gnu.org/mirrors.html
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ENV GCC_MIRRORS \
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https://ftpmirror.gnu.org/gcc \
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https://mirrors.kernel.org/gnu/gcc \
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https://bigsearcher.com/mirrors/gcc/releases \
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http://www.netgull.com/gcc/releases \
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https://ftpmirror.gnu.org/gcc \
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# "sourceware.org" is the canonical upstream release host (the host of "gcc.gnu.org")
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https://sourceware.org/pub/gcc/releases \
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# only attempt the origin FTP as a mirror of last resort
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ftp://ftp.gnu.org/gnu/gcc
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# Last Modified: 2025-07-11
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ENV GCC_VERSION 12.5.0
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# Docker EOL: 2027-01-11
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RUN set -ex; \
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\
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savedAptMark="$(apt-mark showmanual)"; \
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apt-get update; \
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apt-get install -y --no-install-recommends \
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dpkg-dev \
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flex \
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gnupg \
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; \
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rm -r /var/lib/apt/lists/*; \
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\
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_fetch() { \
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local fetch="$1"; shift; \
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local file="$1"; shift; \
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for mirror in $GCC_MIRRORS; do \
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if curl -fL "$mirror/$fetch" -o "$file"; then \
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return 0; \
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fi; \
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done; \
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echo >&2 "error: failed to download '$fetch' from several mirrors"; \
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return 1; \
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}; \
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\
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_fetch "gcc-$GCC_VERSION/gcc-$GCC_VERSION.tar.xz.sig" 'gcc.tar.xz.sig'; \
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_fetch "gcc-$GCC_VERSION/gcc-$GCC_VERSION.tar.xz" 'gcc.tar.xz'; \
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export GNUPGHOME="$(mktemp -d)"; \
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for key in $GPG_KEYS; do \
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gpg --batch --keyserver keyserver.ubuntu.com --recv-keys "$key"; \
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done; \
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gpg --batch --verify gcc.tar.xz.sig gcc.tar.xz; \
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gpgconf --kill all; \
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rm -rf "$GNUPGHOME"; \
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mkdir -p /usr/src/gcc; \
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tar -xf gcc.tar.xz -C /usr/src/gcc --strip-components=1; \
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rm gcc.tar.xz*; \
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\
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cd /usr/src/gcc; \
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\
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# "download_prerequisites" pulls down a bunch of tarballs and extracts them,
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# but then leaves the tarballs themselves lying around
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./contrib/download_prerequisites; \
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{ rm *.tar.* || true; }; \
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\
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# explicitly update autoconf config.guess and config.sub so they support more arches/libcs
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for f in config.guess config.sub; do \
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wget -O "$f" "https://git.savannah.gnu.org/cgit/config.git/plain/$f?id=7d3d27baf8107b630586c962c057e22149653deb"; \
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# find any more (shallow) copies of the file we grabbed and update them too
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find -mindepth 2 -name "$f" -exec cp -v "$f" '{}' ';'; \
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done; \
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\
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dir="$(mktemp -d)"; \
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cd "$dir"; \
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\
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extraConfigureArgs=''; \
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dpkgArch="$(dpkg --print-architecture)"; \
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case "$dpkgArch" in \
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# with-arch: https://salsa.debian.org/toolchain-team/gcc/-/blob/gcc-13-debian/debian/rules2#L533-573
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# with-float: https://salsa.debian.org/toolchain-team/gcc/-/blob/gcc-13-debian/debian/rules2#L521-523
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# with-mode: https://salsa.debian.org/toolchain-team/gcc/-/blob/gcc-13-debian/debian/rules2#L571
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armel) \
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extraConfigureArgs="$extraConfigureArgs --with-arch=armv5te --with-float=soft" \
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;; \
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armhf) \
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# https://bugs.launchpad.net/ubuntu/+source/gcc-defaults/+bug/1939379/comments/2
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extraConfigureArgs="$extraConfigureArgs --with-arch=armv7-a+fp --with-float=hard --with-mode=thumb" \
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;; \
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\
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# with-arch-32: https://salsa.debian.org/toolchain-team/gcc/-/blob/gcc-13-debian/debian/rules2#L670
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i386) \
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extraConfigureArgs="$extraConfigureArgs --with-arch-32=i686"; \
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;; \
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esac; \
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\
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gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
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/usr/src/gcc/configure \
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--build="$gnuArch" \
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--disable-multilib \
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--enable-languages=c,c++,fortran,go \
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$extraConfigureArgs \
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; \
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make -j "$(nproc)"; \
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make install-strip; \
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\
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cd ..; \
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\
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rm -rf "$dir" /usr/src/gcc; \
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\
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apt-mark auto '.*' > /dev/null; \
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[ -z "$savedAptMark" ] || apt-mark manual $savedAptMark; \
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apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false
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# gcc installs .so files in /usr/local/lib64 (and /usr/local/lib)...
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RUN set -ex; \
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# this filename needs to sort higher than all the architecture filenames ("aarch64-...", "armeabi...", etc)
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{ echo '/usr/local/lib64'; echo '/usr/local/lib'; } > /etc/ld.so.conf.d/000-local-lib.conf; \
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ldconfig -v; \
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# the libc created by gcc might be too old for a newer Debian
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# check that the Debian libstdc++ doesn't have newer requirements than the gcc one
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deb="$(readlink -ve /usr/lib/*/libstdc++.so* | head -1)"; \
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gcc="$(readlink -ve /usr/local/lib*/libstdc++.so | head -1)"; \
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# using LD_PRELOAD to make sure "abidiff" itself doesn't fail with the exact error we're trying to test for 😂😭
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LD_PRELOAD="$deb" abidiff --no-added-syms "$deb" "$gcc"
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# ensure that alternatives are pointing to the new compiler and that old one is no longer used
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RUN set -ex; \
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dpkg-divert --divert /usr/bin/gcc.orig --rename /usr/bin/gcc; \
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dpkg-divert --divert /usr/bin/g++.orig --rename /usr/bin/g++; \
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dpkg-divert --divert /usr/bin/gfortran.orig --rename /usr/bin/gfortran; \
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update-alternatives --install /usr/bin/cc cc /usr/local/bin/gcc 999

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