Enforce ld.gold is installed and show its version (#53)

This does not actually add `ld.gold` to our docker images (since `binutils` is a required dependency and contains gold in all the distros we currently support), however it does make it explicit and shows its version. Might be also useful for the future, if `ld.gold` is no longer installed by default (e.g. Debian Trixie).

Author: Bronek

docker/debian/Dockerfile

@@ -38,6 +38,7 @@ EOF
 RUN <<EOF
 pkgs=()
 pkgs+=(ca-certificates) # Enable TLS verification for HTTPS connections by providing trusted root certificates.
+pkgs+=(binutils-gold)   # Required build tool.
 pkgs+=(curl)            # Dependency for tools requiring downloading data.
 pkgs+=(dpkg-dev)        # Required packaging tool.
 pkgs+=(debhelper)       # Required packaging tool.
@@ -59,6 +60,8 @@ apt-get clean
 rm -rf /var/lib/apt/lists/*
 EOF
 
+RUN ld.gold --version
+
 # Install Python-based tools and cmake.
 ARG CONAN_VERSION
 ARG GCOVR_VERSION

docker/rhel/Dockerfile

@@ -12,6 +12,7 @@ ENTRYPOINT ["/bin/bash"]
 RUN <<EOF
 pkgs=()
 pkgs+=(ca-certificates)   # Enable TLS verification for HTTPS connections by providing trusted root certificates.
+pkgs+=(binutils-gold)     # Required build tool.
 pkgs+=(file)              # Required packaging tool.
 pkgs+=(git)               # Required build tool.
 pkgs+=(gpg)               # Dependency for tools requiring signing or encrypting/decrypting.
@@ -52,6 +53,8 @@ mkdir -p /usr/local/lib
 ln -sf /usr/lib/python3.12 /usr/local/lib/python3.12
 EOF
 
+RUN ld.gold --version
+
 # Install Python-based tools and cmake.
 ARG CONAN_VERSION
 ARG GCOVR_VERSION

docker/ubuntu/Dockerfile

@@ -26,6 +26,7 @@ EOF
 RUN <<EOF
 pkgs=()
 pkgs+=(ca-certificates) # Enable TLS verification for HTTPS connections by providing trusted root certificates.
+pkgs+=(binutils-gold)   # Required build tool.
 pkgs+=(curl)            # Dependency for tools requiring downloading data.
 pkgs+=(dpkg-dev)        # Required packaging tool.
 pkgs+=(file)            # Required packaging tool.
@@ -46,6 +47,8 @@ apt-get clean
 rm -rf /var/lib/apt/lists/*
 EOF
 
+RUN ld.gold --version
+
 # Install Python-based tools and cmake.
 ARG CONAN_VERSION
 ARG GCOVR_VERSION