[CMake] Re: Bug with cmake's `--debug-trycompile' option?

[Clark J. Wang]

On Dec 19, 2007 12:35 PM, Bill Hoffman <bill.hoffman at kitware.com> wrote:

> Clark J. Wang wrote:
> > Anybody has any idea?
> >
> > On Dec 11, 2007 5:07 PM, Clark J. Wang <dearvoid at gmail.com
> > <mailto:dearvoid at gmail.com>> wrote:
> >
> >     I
> >     This is fine for `sys/event.h' is not available on my system. But
> >     when I run `cmake --debug-trycompile .' it outputed like this:
> >
> >
> >     This time it said that `sys/event.h' was found! Anything wrong?
> >
>
> I am not surprised.  The debug-try compile option does not clean out the
>  build tree.  It is meant as a debugging tool only.  It should not be
> expected to work.  Usually, if there is trouble with the result of a try
> compile, you set it up so that only that one try compile will happen and
> run with debug-trycompile.  Then cmake will leave the build/source files
> in the temp directory, so you can try it by hand, and examine the results.
>

Debugging options are used for debugging, that's right. But I don't agree
that CMake can give wrong results when run in debug mode. Take the
`--debug-trycompile' option for example, CMake can leave separate
build/source files with different filenames in the temp directory for each
call of TRY_COMPILE.


>
> -Bill
>
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