From 5160ac7e61e3c9f3c566243657207151155bb7e9 Mon Sep 17 00:00:00 2001
From: casjay <git-admin@casjaysdev.pro>
Date: Sun, 31 May 2026 18:31:58 -0400
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20Fix=20arm64=20build:=20serialise?=
 =?UTF-8?q?=20Go=20compilation=20to=20prevent=20QEMU=20segfault=20?=
 =?UTF-8?q?=F0=9F=90=9B?=
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The arm64 build was failing with:
github.com/caarlos0/go-version: .../linux_arm64/compile: signal: segmentation fault
Under QEMU emulation, parallel Go package compilation creates memory
pressure that causes the compiler to crash. Setting GOFLAGS=-p=1 on
aarch64 serialises compilation, eliminating the segfault. amd64 builds
are unaffected (no flag set on x86_64).
- rootfs/root/docker/setup/05-custom.sh: detect aarch64 via uname -m
and export GOFLAGS=-p=1 before all go install calls

rootfs/root/docker/setup/05-custom.sh
---
 rootfs/root/docker/setup/05-custom.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/rootfs/root/docker/setup/05-custom.sh b/rootfs/root/docker/setup/05-custom.sh
index f9c6bb8..197300c 100755
--- a/rootfs/root/docker/setup/05-custom.sh
+++ b/rootfs/root/docker/setup/05-custom.sh
@@ -73,6 +73,10 @@ export GOCACHE="${GOCACHE_BUILD}"
 export CGO_ENABLED="0"
 export GOTOOLCHAIN="auto"
 
+# Under QEMU arm64 emulation the Go compiler can segfault when many packages
+# compile in parallel due to memory pressure. Serialise compilation on arm64.
+[ "$(uname -m)" = "aarch64" ] && export GOFLAGS="${GOFLAGS:+$GOFLAGS }-p=1"
+
 # Ensure the GOPATH directory tree exists
 mkdir -p "${GOPATH_DIR}/pkg/mod" "${GOPATH_DIR}/cache" "${GOPATH_DIR}/bin"