tree 2e10a20dc8b0de478950d84dad3e0bcb873e2b2e
parent ee8ccc68b93c0a6db7c9107baee6ec440a6f3449
author Raphael Isemann <teemperor@gmail.com> 1602597900 +0200
committer Copybara-Service <copybara-worker@google.com> 1604019968 -0700

Fix all the CMake code that can only handle -stdlib= but not --stdlib=

There are several places in LLVM's CMake setup that try to remove the
`stdlib=...` flag from the CMake flags. All this code however only considered
the `-stdlib=` variant of the flag but not the alternative spelling with a
double dash. This causes that when one adds `--stdlib=...` to the user-provided
CMake flags that this gets transformed into just `-` which ends up causing the
build system to think it should read the source from stdin (which then lead to
very confusing build errors).

This just adds the alternative spelling before the`-stdlib=` variant in all
these places

Reviewed By: ldionne

Differential Revision: https://reviews.llvm.org/D87133

GitOrigin-RevId: 6b7a49bb43d58c2c08fddb9f6c538ee52806de0a