Jack Andersen 9d37d0ea34 [Support] Expand <CFGDIR> as the base directory in configuration files. ...

Extends response file expansion to recognize `<CFGDIR>` and expand to the
current file's directory. This makes it much easier to author clang config
files rooted in portable, potentially not-installed SDK directories.

A typical use case may be something like the following:

```
# sample_sdk.cfg
--target=sample
-isystem <CFGDIR>/include
-L <CFGDIR>/lib
-T <CFGDIR>/ldscripts/link.ld
```

Reviewed By: sepavloff

Differential Revision: https://reviews.llvm.org/D115604

2021-12-30 13:43:47 -05:00

92 KiB

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