Back to bookworm. (#1040)

scripts/set_compiler_env.sh

@@ -0,0 +1,84 @@
+#!/bin/sh
+
+# Script to configure environment variables for Go compiler
+# to allow cross compilation
+
+: ${TARGETPLATFORM=}
+: ${TARGETOS=}
+: ${TARGETARCH=}
+: ${TARGETVARIANT=}
+
+CGO_ENABLED="$(go env CGO_ENABLED)"
+GOARCH="$(go env GOARCH)"
+GOOS="$(go env GOOS)"
+GOARM="$(go env GOARM)"
+GOBIN="$(go env GOBIN)"
+
+set -eu
+
+if [ ! -z "$TARGETPLATFORM" ]; then
+  TARGETOS="$(echo $TARGETPLATFORM | cut -d"/" -f1)"
+  TARGETARCH="$(echo $TARGETPLATFORM | cut -d"/" -f2)"
+  TARGETVARIANT="$(echo $TARGETPLATFORM | cut -d"/" -f3)"
+fi
+
+if [ ! -z "$TARGETOS" ]; then
+  export GOOS="$TARGETOS"
+fi
+
+if [ ! -z "$TARGETARCH" ]; then
+  export GOARCH="$TARGETARCH"
+fi
+
+if [ "$TARGETARCH" = "arm" ]; then
+  if [ ! -z "$TARGETVARIANT" ]; then
+    case "$TARGETVARIANT" in
+    "v5")
+      export GOARM="5"
+      ;;
+    "v6")
+      export GOARM="6"
+      ;;
+    *)
+      export GOARM="7"
+      ;;
+    esac
+  else
+    export GOARM="7"
+  fi
+fi
+
+if [ "$CGO_ENABLED" = "1" ]; then
+  case "$GOARCH" in
+  "amd64")
+    export COMPILER_ARCH="x86_64-linux-gnu"
+    ;;
+  "ppc64le")
+    export COMPILER_ARCH="powerpc64le-linux-gnu"
+    ;;
+  "s390x")
+    export COMPILER_ARCH="s390x-linux-gnu"
+    ;;
+  "arm64")
+    export COMPILER_ARCH="aarch64-linux-gnu"
+    ;;
+  "arm")
+    case "$GOARM" in
+    "5")
+      export COMPILER_ARCH="arm-linux-gnueabi"
+      ;;
+    *)
+      export COMPILER_ARCH="arm-linux-gnueabihf"
+      ;;
+    esac
+    ;;
+  esac
+fi
+
+export CC="${COMPILER_ARCH}-gcc"
+export CXX="${COMPILER_ARCH}-g++"
+export PKG_CONFIG_PATH="/usr/lib/${COMPILER_ARCH}/pkgconfig/"
+
+if [ -z "$GOBIN" ] && [ -n "$GOPATH" ] && [ -n "$GOARCH" ] && [ -n "$GOOS" ]; then
+  export PATH=${GOPATH}/bin/${GOOS}_${GOARCH}:${PATH}
+fi