find_package(Foo REQUIRED)

[Alexander Neundorf]

On Tuesday 16 June 2009, Allen Winter wrote:
> Howdy,
>
> Maybe this should be a feature of cmake itself.. but I wish for
> find_package(Foo REQUIRED) to print a nicer message
> if Foo is not found.
>
> We have the macro_log_feature() stuff for the optional packages
> which creates the nice summary at the end of the cmake run,
> but when required FOO is not found all we get is a terse error and quit.
>
> I wonder.. can we overload find_package() with a COMMENT option?
> i.e.
> find_package(Foo REQUIRED COMMENT "Foo is a critical library and this
> software cannot be build without it. Please install Foo
> <http://www.foo.org> version 2.9 or higher")
>
> and have the COMMENT printed on termination?
>
> Or maybe there is already something like this and I'm not seeing it?

The second argument to find_package_handle_standard_args() can be 
either "DEFAULT_MSG", then the default message is printed, or it can be a 
custom message. I think this should be good enough ?
But until now nobody inserted custom messages there.

Alex