Explicitly install gold on arm64

Author: tianon

1.24/bookworm/Dockerfile

@@ -225,6 +225,16 @@ RUN set -eux; \
 		make \
 		pkg-config \
 	; \
+# go depends on "gold" explicitly on arm64
+# https://github.com/docker-library/golang/issues/570 (go depends on "gold" explicitly on arm64)
+# https://github.com/golang/go/issues/22040
+# ... and as of trixie, "gold" is removed from the "binutils" package:
+# > WARNING: gold is being removed from binutils, and is deprecated upstream.
+# (and available as "binutils-gold" which is also a virtual on bookworm so we can reasonably be explicit everywhere)
+	dpkgArch="$(dpkg --print-architecture)"; \
+	if [ "$dpkgArch" = 'arm64' ]; then \
+		apt-get install -y --no-install-recommends binutils-gold; \
+	fi; \
 	rm -rf /var/lib/apt/lists/*
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