This makes the WinVersion and MacVersion enums accessible in platform
indepedent code to avoid the need to use #ifdef Q_OS_* chains in
user code, leading to fewer platform-dependent code paths and better
maintainability.
To indicate "this is not a Windows based OS" a enum value
QSysInfo::WV_None (with value 0x0000) in QSysInfo::WinVersion
is introduced. This keeps the WV_*_based masks usable.
To indicate "this is not a Darwin based OS" a enum values
QSysInfo::MV_None (with value 0xffff) in QSysInfo::MacVersion
is introduced. 0x0000 might have been preferable for (not so
important "consitency" with QSysInfo::WV_None), but is already
taken by QSysInfo::MV_Unknown with a different meaning.
Change-Id: Ib395e0efba58558f31f4e0806f7333165aa90aa5
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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