Matthew Pickering authored Sep 15, 2020 and Marge Bot committed Oct 05, 2023

This reverts commit 1c18d3b4.

`-optP` should pass options to the preprocessor, that might be a very
different program to the C compiler, so passing the options to the C
compiler is likely to result in `-optP` being useless.

Fixes #17185 and #21291