/usr/include/ubuntu/visibility.h is in libubuntu-application-api-headers 3.0.1+16.04.20160203-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | /*
* Copyright © 2013 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Thomas Voß <thomas.voss@canonical.com>
*/
#ifndef UBUNTU_VISIBILITY_H_
#define UBUNTU_VISIBILITY_H_
#if __GNUC__ >= 4
#define UBUNTU_DLL_PUBLIC __attribute__ ((visibility ("default")))
#define UBUNTU_DLL_LOCAL __attribute__ ((visibility ("hidden")))
#else
#define UBUNTU_DLL_PUBLIC
#define UBUNTU_DLL_LOCAL
#endif
#endif /* UBUNTU_VISIBILITY_H_ */
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