Add freebsd-clang mkspec

clang is the default compiler on FreeBSD 10 (if not earlier).

Let's keep it unsupported for now. Can be promoted later.

Change-Id: I909953c986a3da09ce19d8f9f9ee2cc22c417abd
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

mkspecs/unsupported/freebsd-clang/qmake.conf

@@ -0,0 +1,38 @@
+#
+# qmake configuration for freebsd-clang
+#
+
+MAKEFILE_GENERATOR      = UNIX
+QMAKE_PLATFORM          = freebsd bsd
+CONFIG                 += gdb_dwarf_index
+
+QMAKE_CFLAGS_THREAD     = -pthread -D_THREAD_SAFE
+
+QMAKE_CXXFLAGS_THREAD   = $$QMAKE_CFLAGS_THREAD
+
+# Addon software goes into /usr/local on the BSDs, by default we will look there
+QMAKE_INCDIR            = /usr/local/include
+QMAKE_LIBDIR            = /usr/local/lib
+QMAKE_INCDIR_X11        = /usr/X11R6/include
+QMAKE_LIBDIR_X11        = /usr/X11R6/lib
+QMAKE_INCDIR_OPENGL     = /usr/X11R6/include
+QMAKE_LIBDIR_OPENGL     = /usr/X11R6/lib
+
+QMAKE_LFLAGS_THREAD     = -pthread
+
+QMAKE_LIBS              =
+QMAKE_LIBS_DYNLOAD      =
+QMAKE_LIBS_X11          = -lXext -lX11 -lm
+QMAKE_LIBS_OPENGL       = -lGL
+QMAKE_LIBS_THREAD       =
+
+QMAKE_AR                = ar cqs
+QMAKE_OBJCOPY           = objcopy
+QMAKE_NM                = nm -P
+QMAKE_RANLIB            =
+
+include(../../common/unix.conf)
+include(../../common/gcc-base-unix.conf)
+include(../../common/g++-unix.conf)
+include(../../common/clang.conf)
+load(qt_config)

mkspecs/unsupported/freebsd-clang/qplatformdefs.h

@@ -0,0 +1,42 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the qmake spec of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "../../freebsd-g++/qplatformdefs.h"