Ensure at least glibc 2.28

clang/Dockerfile

@@ -7,15 +7,12 @@ COPY test/test.cpp ./
 
 RUN touch /etc/dockerinit
 
-ARG LIBCXX
-ARG BUILD_LIBCXX
 RUN apt-get update -qq && \
     apt-get install -y --no-install-recommends \
     binutils-dev \
     ca-certificates \
     gdb \
     git \
-    ${LIBCXX} \
     libcurl4-openssl-dev \
     libdw-dev \
     libiberty-dev \
@@ -28,6 +25,15 @@ RUN apt-get update -qq && \
     xz-utils \
     zlib1g-dev \
     wget
+
+COPY common/install-glibc.sh .
+RUN stat ./install-glibc.sh
+RUN ./install-glibc.sh
+RUN rm install-glibc.sh
+
+ARG LIBCXX
+RUN [ -z "${LIBCXX}" ] || apt-get install -y --no-install-recommends ${LIBCXX}
+
 RUN apt-get install -y --no-install-recommends gpg gpg-agent || true
 
 COPY clang/install-clang.sh ./

clang/install-libcxx.sh

@@ -62,7 +62,6 @@ if [[ $VERSION == "3."* ]]; then
     cp -r llvm-build/lib/* /usr/lib/x86_64-linux-gnu
     cp -r ${SOURCE}/projects/libcxx/include/* /usr/lib/llvm-$1/include/c++/v1
 else
-    ln -s /usr/include/locale.h /usr/include/xlocale.h
     cmake -DCMAKE_C_COMPILER=clang-$1 -DCMAKE_CXX_COMPILER=clang++-$1 \
           -DCMAKE_INSTALL_PREFIX=/usr \
           -DCMAKE_BUILD_WITH_INSTALL_RPATH=1 \

common/install-glibc.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+set -eou pipefail
+
+export CURRENT_VERSION="$(ldd --version | head -n 1 | sed 's/^.* \([0-9].*\)$/\1/')"
+MIN_VERSION=2.28
+
+function greater_version() {
+  echo -e "$1\n$2" | sort -Vr | head -n 1
+}
+if [ "$(greater_version $MIN_VERSION $CURRENT_VERSION)" == "${CURRENT_VERSION}" ]
+then
+  exit 0
+fi
+apt install -y --no-install-recommends gawk bison texinfo gcc
+git clone -b glibc-${MIN_VERSION} --depth=1 git://sourceware.org/git/glibc
+mkdir glibc/build
+pushd glibc/build
+../configure --disable-sanity-checks
+make
+make install
+popd
+rm /usr/include/xlocale.h
+ln -s /usr/include/locale.h /usr/include/xlocale.h
+apt remove -y gawk bison texinfo gcc
+apt autoremove -y
+rm -rf glibc

gcc/Dockerfile

@@ -7,25 +7,31 @@ COPY test/test.cpp ./
 
 RUN touch /etc/dockerinit
 
-ARG GCC_VERSION
 RUN apt-get update -qq && \
     apt-get install -y --no-install-recommends \
     binutils-dev \
     ca-certificates \
-    g++-${GCC_VERSION} \
     gdb \
     git \
     libcurl4-openssl-dev \
     libdw-dev \
     libiberty-dev \
     libssl-dev \
+    make \
     ninja-build \
     parallel \
     python3 \
     valgrind \
     xz-utils \
     zlib1g-dev \
     wget
+
+COPY common/install-glibc.sh .
+RUN ./install-glibc.sh; rm install-glibc.sh
+
+ARG GCC_VERSION
+RUN apt-get install -y --no-install-recommends   g++-${GCC_VERSION}
+
 RUN apt-get install -y --no-install-recommends gpg gpg-agent || true
 
 ARG GCC_VERSION