[PATCH input-synaptics 1/5] Use appropriate Autoconf statements to check for prerequisites

[Gaetan Nadon]

On Tue, 2011-06-14 at 08:19 -0700, Dan Nicholson wrote:

> How would it "fail to fail"? If xorg-server.h isn't installed anymore,
> then you won't get the extension. The macro is intended to check if an
> extension is available in the server, and it does just that. I guess
> you want it to fail harder if the xserver can't be found at all.
> 
> 

Ah, yes. I expected the m4 test to fail during configuration when the
server is not installed because the macro is missing. That was a not a
fair expectation as autoconf was done when the server was installed.

This m4 test is better as it happens earlier.

Thanks! I think I had this misconception for a while.
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