[PATCH] D56976: [clang] [test] Pass -ccc-install-dir in mac compilation db test

[Ilya Biryukov via Phabricator via cfe-commits]

ilya-biryukov added a comment.

In D56976#1365087 <https://reviews.llvm.org/D56976#1365087>, @mgorny wrote:

> Actually, it works on other systems because they don't use `argv[0]`. The problem is in compilation db code using getMainExecutable() in ctor without passing the real argv to it.


But it does so in all OSes and still manages find libc++, right? What's different for *BSD?

One possible fix is to start passing proper `argv[0]` into `getMainExecutable`, but my expectation is that using `clang` there was intentional: the tooling library tries to fallback to the system clang in that case.


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