[llvm-commits] [PATCH] Teach CMake to only touch tablegen-generated files if anything actually changed.

[Frits van Bommel]

On Fri, Oct 22, 2010 at 7:06 PM, Frits van Bommel <fvbommel at gmail.com> wrote:
> Note that I wasn't sure what COMMENT lines to use for the two
> different targets, but "Building ${ofn}.tmp..." and "Updating ${ofn}
> if necessary" seems reasonable. (Similar phrasing is used when
> regenerating library dependencies, I think)

It appears that if you use COMMENT "" the entire line disappears, so
we can hide this implementation detail from the user interface.
Updated patch attached.
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