• export.h
  • /* libFLAC - Free Lossless Audio Codec library
     * Copyright (C) 2000-2009  Josh Coalson
     * Copyright (C) 2011-2025  Xiph.Org Foundation
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     *
     * - Redistributions of source code must retain the above copyright
     * notice, this list of conditions and the following disclaimer.
     *
     * - Redistributions in binary form must reproduce the above copyright
     * notice, this list of conditions and the following disclaimer in the
     * documentation and/or other materials provided with the distribution.
     *
     * - Neither the name of the Xiph.org Foundation nor the names of its
     * contributors may be used to endorse or promote products derived from
     * this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
     * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    #ifndef FLAC__EXPORT_H
    #define FLAC__EXPORT_H
    
    /** \file include/FLAC/export.h
     *
     *  \brief
     *  This module contains \#defines and symbols for exporting function
     *  calls, and providing version information and compiled-in features.
     *
     *  See the \link flac_export export \endlink module.
     */
    
    /** \defgroup flac_export FLAC/export.h: export symbols
     *  \ingroup flac
     *
     *  \brief
     *  This module contains \#defines and symbols for exporting function
     *  calls, and providing version information and compiled-in features.
     *
     *  If you are compiling for Windows (with Visual Studio or MinGW for
     *  example) and will link to the static library (libFLAC++.lib) you
     *  should define FLAC__NO_DLL in your project to make sure the symbols
     *  are exported properly.
     *
     * \{
     */
    
    /** This \#define is used internally in libFLAC and its headers to make
     * sure the correct symbols are exported when working with shared
     * libraries. On Windows, this \#define is set to __declspec(dllexport)
     * when compiling libFLAC into a library and to __declspec(dllimport)
     * when the headers are used to link to that DLL. On non-Windows systems
     * it is used to set symbol visibility.
     *
     * Because of this, the define FLAC__NO_DLL must be defined when linking
     * to libFLAC statically or linking will fail.
     */
    /* This has grown quite complicated. FLAC__NO_DLL is used by MSVC sln
     * files and CMake, which build either static or shared. autotools can
     * build static, shared or **both**. Therefore, DLL_EXPORT, which is set
     * by libtool, must override FLAC__NO_DLL on building shared components
     */
    #if defined(_WIN32)
    
    #if defined(FLAC__NO_DLL) && !(defined(DLL_EXPORT))
    #define FLAC_API
    #else
    #ifdef FLAC_API_EXPORTS
    #define	FLAC_API __declspec(dllexport)
    #else
    #define FLAC_API __declspec(dllimport)
    #endif
    #endif
    
    #elif defined(FLAC__USE_VISIBILITY_ATTR)
    #define FLAC_API __attribute__ ((visibility ("default")))
    
    #else
    #define FLAC_API
    
    #endif
    
    /** These \#defines will mirror the libtool-based library version number, see
     * http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning
     */
    #define FLAC_API_VERSION_CURRENT 14
    #define FLAC_API_VERSION_REVISION 0 /**< see above */
    #define FLAC_API_VERSION_AGE 0 /**< see above */
    
    #ifdef __cplusplus
    extern "C" {
    #endif
    
    /** \c 1 if the library has been compiled with support for Ogg FLAC, else \c 0. */
    extern FLAC_API int FLAC_API_SUPPORTS_OGG_FLAC;
    
    #ifdef __cplusplus
    }
    #endif
    
    /* \} */
    
    #endif