[R-SIG-Mac] R 4.1.2 (arm build) will output for nothing when --interactive flag is passed

[YearNorth]

Dear developer:

On R 4.1.2 (arm build) in macOS 12.0.1, if call R from shell, when —interactive flag is passed, it will output nothing.

To reproduce it:

```
echo "base::cat('Hello\\\\n')\\n" | R --no-save --interactive > test.txt

``

doesn’t yield the derised output

```
R version 4.1.2 (2021-11-01) -- "Bird Hippie”
Copyright (C) 2021 The R Foundation for Statistical Computing
Platform: aarch64-apple-darwin20 (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

  Natural language support but running in an English locale

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R

```

The desired output should have a line `> base::cat('Hello\\n')\n` in test.txt

This may be the critical problem for why `vscDebugger` (a R debugger for VSCode) does not work for arm build R.

See the discussion on github 
https://github.com/ManuelHentschel/VSCode-R-Debugger/issues/155#issuecomment-1014946738 <https://github.com/ManuelHentschel/VSCode-R-Debugger/issues/155#issuecomment-1014946738>
https://github.com/ManuelHentschel/VSCode-R-Debugger/issues/155#issuecomment-1017250405 <https://github.com/ManuelHentschel/VSCode-R-Debugger/issues/155#issuecomment-1017250405>

Thanks for your time reading and processing my email!

Best,
North
Year
	[[alternative HTML version deleted]]