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SubjectRe: [PATCH 0/5] RFC: strip 15,000 lines from a typical autoconf.h
On Wed, 11 Apr 2012 18:19:58 -0700 Linus Torvalds <> wrote:

> #define IS_DEFINED(x) (__stringify(CONFIG_##x)[0]=='1')
> That really is a piece of art. I'm expecting that the Guggenheim will
> contact me any moment now about it.

Several weeks ago I asked the assemblage if anyone could think of a way
of doing this. It seems that I failed to Cc sufficiently perverted

> Of course, the above does *not* work for a pre-processor, but hey, you
> can't have everything. It literally is *only* valid in C code. You
> can't have everything.

So we shouldn't call it IS_DEFINED() - that would cause confusion with
the old version.

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