mgorny added inline comments.
================
Comment at: clang/lib/Driver/Driver.cpp:1073
+ if (const char *NoConfigEnv = ::getenv("CLANG_NO_DEFAULT_CONFIG")) {
+ if (*NoConfigEnv)
+ return false;
----------------
MaskRay wrote:
> Looking at LLDB_LAUNCH_FLAG_DISABLE_ASLR/LIBCLANG_DISABLE_PCH_VALIDATION,
> they don't check whether the value is non-empty.
Well, my personal experience tells me that it's sometimes non-trivial to unset
var while setting it to empty value is easier, e.g.:
```
# undo global
CLANG_NO_DEFAULT_CONFIG= clang ...
# vs. env -u (not in POSIX)
env -u CLANG_NO_DEFAULT_CONFIG ...
```
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D134905/new/
https://reviews.llvm.org/D134905
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