From 6a0154643c08009451c8de4bdce5b9907e1700fb Mon Sep 17 00:00:00 2001
From: Marcel Bochtler <git@bochtler.io>
Date: Sat, 9 Jul 2022 18:21:19 +0200
Subject: [PATCH] Only relaunch scancode when not in emulation mode #2835

Running `uname -m` on Apple silicon machines always results in `arm64`,
regardless if Bash is running in Rosetta 2 emulation or natively.
Check if scancode and configure is running in emulation mode (see [1]),
before relaunching it, to avoid an infinite loop.

[1]: https://developer.apple.com/documentation/apple-silicon/about-the-rosetta-translation-environment

Signed-off-by: Marcel Bochtler <git@bochtler.io>
---
 configure | 2 +-
 scancode  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index fb24a432ab5..4535740352f 100755
--- a/configure
+++ b/configure
@@ -119,7 +119,7 @@ CFG_ROOT_DIR="$( cd "$( dirname "${CFG_BIN}" )" && pwd )"
 CFG_BIN_DIR=$CFG_ROOT_DIR/$VIRTUALENV_DIR/bin
 
 # force relaunching under X86-64 architecture on macOS M1/ARM 
-if [[ $OSTYPE == 'darwin'* && $(uname -m) == 'arm64' ]]; then
+if [[ $OSTYPE == 'darwin'* && $(uname -m) == 'arm64' && $(sysctl -in sysctl.proc_translated) == 0 ]]; then
     arch -x86_64 /bin/bash -c "$CFG_ROOT_DIR/configure $@"
     exit $?
 fi
diff --git a/scancode b/scancode
index 3547d0fadd0..9053027a0bb 100755
--- a/scancode
+++ b/scancode
@@ -121,7 +121,7 @@ SCANCODE_BIN="$( realpath "${BASH_SOURCE[0]}" )"
 SCANCODE_ROOT_DIR="$( cd "$( dirname "${SCANCODE_BIN}" )" && pwd )"
 
 # force relaunching under X86-64 architecture on macOS M1/ARM 
-if [[ $OSTYPE == 'darwin'* && $(uname -m) == 'arm64' ]]; then
+if [[ $OSTYPE == 'darwin'* && $(uname -m) == 'arm64' && $(sysctl -in sysctl.proc_translated) == 0 ]]; then
     arch -x86_64 /bin/bash -c "$SCANCODE_ROOT_DIR/$COMMAND_TO_RUN $@"
     exit $?
 fi