qt-everywhere-src-5.14.1/qtbase/src/corelib/global/qversiontagging.cpp

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#include "qglobal.h"

#define SYM QT_MANGLE_NAMESPACE(qt_version_tag)
//#define SSYM QT_STRINGIFY(SYM)

#if defined(Q_CC_GNU) && defined(Q_OF_ELF) && !defined(Q_OS_ANDROID)
#  define make_versioned_symbol2(sym, m, n, separator)     \
    Q_CORE_EXPORT extern const char sym ## _ ## m ## _ ## n = 0; \
    asm(".symver " QT_STRINGIFY(sym) "_" QT_STRINGIFY(m) "_" QT_STRINGIFY(n) ", " \
        QT_STRINGIFY(sym) separator "Qt_" QT_STRINGIFY(m) "." QT_STRINGIFY(n))
#else
#  define make_versioned_symbol2(sym, m, n, separator)
#endif
#define make_versioned_symbol(sym, m, n, separator)    make_versioned_symbol2(sym, m, n, separator)

extern "C" {
#if QT_VERSION_MINOR > 0
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 0, "@");
#endif
#if QT_VERSION_MINOR > 1
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 1, "@");
#endif
#if QT_VERSION_MINOR > 2
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 2, "@");
#endif
#if QT_VERSION_MINOR > 3
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 3, "@");
#endif
#if QT_VERSION_MINOR > 4
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 4, "@");
#endif
#if QT_VERSION_MINOR > 5
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 5, "@");
#endif
#if QT_VERSION_MINOR > 6
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 6, "@");
#endif
#if QT_VERSION_MINOR > 7
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 7, "@");
#endif
#if QT_VERSION_MINOR > 8
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 8, "@");
#endif
#if QT_VERSION_MINOR > 9
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 9, "@");
#endif
#if QT_VERSION_MINOR > 10
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 10, "@");
#endif
#if QT_VERSION_MINOR > 11
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 11, "@");
#endif
#if QT_VERSION_MINOR > 12
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 12, "@");
#endif
#if QT_VERSION_MINOR > 13
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 13, "@");
#endif
#if QT_VERSION_MINOR > 14
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 14, "@");
#endif
#if QT_VERSION_MINOR > 15
make_versioned_symbol(SYM, QT_VERSION_MAJOR, 15, "@");
#endif
#if QT_VERSION_MINOR > 16
// We don't expect there will be a Qt 5.17
#  error "Please update this file with more Qt versions."
#endif

// the default version:
make_versioned_symbol(SYM, QT_VERSION_MAJOR, QT_VERSION_MINOR, "@@");
}