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Subject: Re: [boost] "I want everything" should build "out of the box" (on Windows)
From: Doug Gregor (doug.gregor_at_[hidden])
Date: 2009-07-29 11:13:28


On Wed, Jul 29, 2009 at 5:14 AM, Vladimir Prus<vladimir_at_[hidden]> wrote:
> I personally find that putting configuration details into a file is superior
> approach compared to zillion of options or environment variables. Say, if you
> build a project with automake with zillion of configure options, those options
> are put directly in Makefile, in your build dir, so if you remove your build tree,
> you have to re-figure those options next time you build.
>
> In fact, this is a flaw shared by CMake -- if you configure some project as:
>
>   cmake -Dfoo=blah -DBOOST_ROOT=whatever ../src
>
> it helpfully puts those options into the cache file. Unfortunately, when the
> configure magic confuses itself (which does happen), your only solution is to
> remove the cache, and then you need to recall and pass the same options again.

FWIW, CMake has an option to provide an initial cache file (using -C
cache-filename). So, you can place those configuration details into
your own initial cache file, and ask CMake to start with that
configuration (configuring whatever else it needs) if you need to
re-configure your tree.

  - Doug


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