Add mkspec for clang using libc++ on Linux.

libc++ is an alternative stdlib implementation for clang.
See http://libcxx.llvm.org/ for further details.
The library is enabled by adding -stdlib=libc++ to the command line.

Change-Id: I07d09cbb69b59b579d3754c99d717d2ac6d44d67
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

2 files changed, 52 insertions, 0 deletions

diff --git a/mkspecs/linux-clang-libc++/qmake.conf b/mkspecs/linux-clang-libc++/qmake.conf
new file mode 100644
index 0000000000..c5b0b57b78
--- /dev/null
+++ b/mkspecs/linux-clang-libc++/qmake.conf
@@ -0,0 +1,10 @@
+#
+# qmake configuration for linux-clang and libc++
+#
+
+include(../linux-clang/qmake.conf)
+
+QMAKE_CXXFLAGS    += -stdlib=libc++
+QMAKE_LFLAGS      += -stdlib=libc++
+
+load(qt_config)
diff --git a/mkspecs/linux-clang-libc++/qplatformdefs.h b/mkspecs/linux-clang-libc++/qplatformdefs.h
new file mode 100644
index 0000000000..471c98a6e4
--- /dev/null
+++ b/mkspecs/linux-clang-libc++/qplatformdefs.h
@@ -0,0 +1,42 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 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 "../linux-clang/qplatformdefs.h"