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Date: Sat, 28 Jul 2012 22:26:59 +0400
From: Boris Samorodov <bsam@passap.ru>
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Subject: x11-servers/xorg-server, clang as system compiler
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Hi All,

I use clang as default system compiler (WITH_CLANG_IS_CC="YES"
at /etc/make.conf). The system is i386-current as of yesterday,
fresh ports as of yesterday.

I get this configure error while building x11-servers/xorg-server:
-----
[...]
checking for cpp... /usr/bin/cpp
checking if /usr/bin/cpp requires -undef... yes
checking if /usr/bin/cpp requires -traditional... configure: error: 
/usr/bin/cpp does not preserve whitespace with or without -traditional. 
  I don't know what to do.
===>  Script "configure" failed unexpectedly.
-----

What should I do? Thanks!
-- 
WBR, Boris Samorodov (bsam)
FreeBSD Committer, http://www.FreeBSD.org The Power To Serve