Switch libvpx detection to config check

Chromium depends on svc_context.h that isn't normally shipped by
libvpx-dev packages.

Change-Id: I39790add79097a4eb614873df85e32749b591fd2
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>

2 files changed, 46 insertions, 0 deletions

diff --git a/tools/qmake/config.tests/libvpx/libvpx.cpp b/tools/qmake/config.tests/libvpx/libvpx.cpp
new file mode 100644
index 000000000..640341e8b
--- /dev/null
+++ b/tools/qmake/config.tests/libvpx/libvpx.cpp
@@ -0,0 +1,43 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtWebEngine module 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 The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/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 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <vpx/svc_context.h>
+#include <vpx/vpx_frame_buffer.h>
+
+int main(int, char **)
+{
+    return 0;
+}
diff --git a/tools/qmake/config.tests/libvpx/libvpx.pro b/tools/qmake/config.tests/libvpx/libvpx.pro
new file mode 100644
index 000000000..aff6d1857
--- /dev/null
+++ b/tools/qmake/config.tests/libvpx/libvpx.pro
@@ -0,0 +1,3 @@
+SOURCES += libvpx.cpp
+PKGCONFIG += libvpx
+CONFIG -= qt