make install

[Andreas Hartmetz]

2007/10/5, Brad King <brad.king at kitware.com>:
> David Faure wrote:
> > On Tuesday 02 October 2007, Brad King wrote:
> >> There is alot of discussion in that bug report.
> >>
> >> The comparison of files is not for speed on installation...it's for not
> >> changing timestamps of already installed files and causing all *other*
> >> code using the installed files to rebuild, which is potentially even
> >> slower.
> >
> > Yes. The real solution is a dependency from the installed file to the file-to-install, so
> > that the file-to-install isn't installed if it isn't newer than the already-installed file.
> > And then, when that is implemented, thre is no need for comparing files in order
> > to avoid changing timestamps, since you get for free by not installing the file at all :)
>
> This has now been implemented in CMake HEAD:
>
> http://www.cmake.org/Bug/view.php?id=3349
>
> Repeat installations are now lightning fast.
>
Sweeeet!
Do you have any release plans? I'm happy already with CVS HEAD, though.
Somebody mentioned that it would also be nice if one could suppress
the "Up-to-date: <file>" lines. It's a one liner to hardcode. I don't
care much about it myself, but for now I'm running a CMake that
doesn't show the up-to-date lines.
The idea is that you can see at a glance if the file you wanted to
have reinstalled has actually been reinstalled. Not that this had ever
failed for me :)
Thank you, and please consider this suggestion. I can make a patch if
you want. Your command-line system probably is manageable for me, and
the actual suppression of output is a piece of cake.