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#560 Newer clang enforces c++17 and results in errors
Seems newer clang (16) enforces c++17 and thus compile of DOSBox fails as Genju reported on irc:
./render_templates_sai.h:46:3: error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
register int r = 0;
^~~~~~~~~
./render_templates_sai.h:130:4: error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
register int r = 0;
^~~~~~~~~
./render_templates_sai.h:188:4: error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
register int r = 0;
^~~~~~~~~
In file included from render_scalers.cpp:145:
In file included from ./render_templates.h:464:
./render_templates_sai.h:46:3: error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
register int r = 0;
^~~~~~~~~
./render_templates_sai.h:130:4: error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
register int r = 0;
^~~~~~~~~
./render_templates_sai.h:188:4: error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
register int r = 0;
^~~~~~~~~
In file included from render_scalers.cpp:160:
In file included from ./render_templates.h:464:
./render_templates_sai.h:46:3: error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
register int r = 0;
^~~~~~~~~
./render_templates_sai.h:130:4: error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
register int r = 0;
^~~~~~~~~
./render_templates_sai.h:188:4: error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
register int r = 0;
^~~~~~~~~
9 errors generated.
adding
#if __cplusplus > 199711L
#define register // Deprecated in C++11.
#endif // #if __cplusplus > 199711L
should fix it, or changing "register int" to just "int" a couple of times
as reported by Genju