[CMake] --enable-* with cmake

[Andreas Pakulat]

On 08.08.07 12:46:56, Philip Lowman wrote:
> Brandon Van Every wrote:
> > On 8/8/07, Philip Lowman <philip at yhbt.com> wrote:
> >> I love CMake, but there have been times when I wished that
> >>
> >> --enable-foo would simply be a shortcut to set a boolean variable
> >> ENABLE_FOO to true.
> > 
> > Some would say that's not nice because you don't get exactly what's on
> > the command line.    By the logic of exactitude, --enable-foo should
> > define enable-foo to true.  And if I wanted ENABLE_FOO, then I'd put
> > --ENABLE_FOO on the command line.  Or I could put -DENABLE_FOO,
> > couldn't I?  ;p  My point is that --enable-foo is an Autoconf
> > convention, nothing more.  It's mainly about making an Autoconf
> > migration crowd happy.
> 
> Actually, it's more like this:
> 
> cmake -D USE_FOO=BOOL:ON .
> or
> cmake -D USE_FOO=BOOL:OFF .

Not quite, the BOOL: is not needed.

> The fact that people don't even know the proper way to define variables
> at the command line (myself included) should be proof positive that
> CMake could use some improvement when operating in command line mode.

Or that people should start reading documentations ;)

Andreas

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