[cairo] Fwd: Qt Vs Cairo performance comparison

[Bogdan Nicula]

> > Please don't introduce compiled tests that run at configure time, as 
>this
> > makes cross-compiling painful.
>
>My goal is to get things to work as reliably as possible which means
>making checks like this as automated as possible. If we use
>configure-time compile-and-run tests and use the autoconf cache
>support then:
>
>1. We have automation for native compilation
>
>2. We have automation for cross compilation when using scratchbox with
>    CPU transparency[*], (either through an emulator or through remote
>    execution on the target)

This is very cool indeed. On the other hand, a very common situation is to 
cross-compile on Linux targeting Windows.

>3. We can still provide means for users to manually select the options
>    to avoid any attempt to run configure-time checks. This could be
>    with --enable options or just be having the user prime the autoconf
>    cache. The cache priming is the way GTK+ recommends people doing
>    cross-compilation build that library for example:
>
>	http://developer.gnome.org/doc/API/2.0/glib/glib-cross-compiling.html

Indeed I'm using this for glib for long time. Please make sure it is 
documented in INSTALL.

Bogdan

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