import_export.h

/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2011 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
 * Copyright (C) 2011-2023 KiCad Developers, see change_log.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#ifndef IMPORT_EXPORT_H_
#define IMPORT_EXPORT_H_

/// Macros which export functions from a DLL/DSO.
/// See: http://gcc.gnu.org/wiki/Visibility

#if defined(_WIN32)
	#define APIEXPORT __declspec(dllexport)
	#define APIIMPORT __declspec(dllimport)
	#define APILOCAL
#elif defined(__GNUC__) && __GNUC__ >= 4
	// On ELF, we compile with hidden visibility, so unwrap that for specific symbols:
	#define APIEXPORT __attribute__ ((visibility("default")))
	#define APIIMPORT __attribute__ ((visibility("default")))
	#define APILOCAL  __attribute__ ((visibility("hidden")))
#else
	#pragma message ( "warning: a supported C++ compiler is required" )
	#define APIEXPORT
	#define APIIMPORT
	#define APILOCAL
#endif

// We use APIVISIBLE to mark extern template declarations where we cannot use APIEXPORT
// Because MSVC disallows mixing dllexport and extern templates, we can't just use APIEXPORT
// However MSVC is fine with the dllexport in the cpp file and extern in the header
// But we need the visibility declared on both instantiation and extern for GCC/Clang to make
// the symbol visible
#if defined( __GNUC__ ) || defined( __clang__ )
	#define APIVISIBLE __attribute__ ((visibility("default")))
#else
	#define APIVISIBLE
#endif

#if defined(COMPILING_DLL)
	#define KIFACE_API    APIEXPORT
#else
	#define KIFACE_API    APIIMPORT
#endif

#define KIFACE_LOCAL	APILOCAL

#endif  // IMPORT_EXPORT_H_