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>

Author: MarcelBochtler

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

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