configure error in X build - cpp requires -undef

[Jon TURNEY]

Tom George wrote:
> I am trying to build the Cygwin/X following the instructions in the 
> Cygwin/X Contributors Guide.
> 
> When I run
> 
> ./configure --prefix=/usr
> 
> the last few lines of output are:
...
> checking if /usr/bin/cpp requires -undef... configure: error: 
> /usr/bin/cpp defines unix with or without -undef.  I don't know what to do.
> 
> Any help to get past this would be greatly appreciated.

This means that the X server source you are building didn't have it's 
./configure generated with xorg-util-macros with a patch needed for cygwin [1]

The X server source package available via cygwin setup shouldn't have this 
problem.  What source are you using?

[1] 
http://cygwin-ports.svn.sourceforge.net/viewvc/cygwin-ports/ports/trunk/xorg/xorg-util-macros/1.1-cpp-undef.patch?view=markup


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