[Insight-developers] Preventing In-Source Builds

[Luis Ibanez]

Bill,

In the modified version that I just emailed to Kent
and the list, there are more specific instructions
on how to remove the offending files, by using
"git clean -d -f "

I'm a bit concerned that we just give up on an entire
feature (in-source building) based on the case that
some users may misuse it.


...but...
anyways, at this point we have bigger
problems in our plates.


     Luis


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On Sat, Oct 16, 2010 at 12:06 PM, Bill Lorensen <bill.lorensen at gmail.com>wrote:

> The error tells you explicitly what to do.
> # ITK should not be configured & built in the ITK source directory
> # You must run cmake in a build directory.
> # For example:
> # mkdir ITK-Sandbox ; cd ITK-sandbox
> # git clone git://itk.org/ITK.git # or download & unpack the source
> tarball
> # mkdir ITK-build ; cd ITK-build ; ccmake ../ITK
> # NOTE: CMake will have created several files & directories
> #       in your source tree. run 'git status' to find them and
> #       remove them.
>
>
> On Sat, Oct 16, 2010 at 11:28 AM, David Doria <daviddoria at gmail.com>
> wrote:
> > On Sat, Oct 16, 2010 at 11:17 AM, Bill Lorensen <bill.lorensen at gmail.com>
> wrote:
> >> Folks,
> >>
> >> Kent Williams has created ITK cmake modifications to block in-source
> >> builds. As you know, doing cmake in the source tree pollutes the
> >> source tree with cmake, build and configured .h files. The only way to
> >> recover is to blow away the source tree and recreate it.
> >>
> >> New users often do this and have trouble recovering.
> >>
> >> I tried Kent's solution and it works great.
> >>
> >> Is there any reason why one would want to have an in source build?
> >>
> >> I propose that we push Kent's changes to save our users headaches in the
> future.
> >>
> >> Bill
> >
> > What is the error produced when a user runs
> >
> > cmake .
> >
> > from the source directory?
> >
> > What happens if the user runs ccmake . from the source directory? Is
> > the error presented when you press 'c' for configure? Is there a way
> > to stop them before that? (If you spend a few minutes setting up
> > options and then realize you can't do this, that may be annoying.)
> >
> > The error should definitely detail how you SHOULD do it, not just say
> > something like "error: in source builds not allowed". This is not as
> > useful to a new user as something more along the lines of "Error: you
> > have tried to build ITK in the same directory as the source code. This
> > is called an "in source build" and is strongly not recommended. Please
> > create a 'bin' directory outside of the ITK source directory and
> > re-run cmake from that directory with 'cmake .../yourITKsource"
> >
> > Thoughts?
> >
> > David
> >
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