CC src/haptic/windows/SDL_syshaptic.o
In file included from src/haptic/windows/SDL_syshaptic.c:34:0:
src/haptic/windows/../../joystick/windows/SDL_dxjoystick_c.h:69:3: error: conflicting types for 'XINPUT_GAMEPAD_EX'
 } XINPUT_GAMEPAD_EX;
   ^~~~~~~~~~~~~~~~~
In file included from src/haptic/windows/../../joystick/windows/SDL_dxjoystick_c.h:42:0,
                 from src/haptic/windows/SDL_syshaptic.c:34:
C:/git-sdk-64/mingw64/x86_64-w64-mingw32/include/xinput.h:182:3: note: previous declaration of 'XINPUT_GAMEPAD_EX' was here
 } XINPUT_GAMEPAD_EX, *PXINPUT_GAMEPAD_EX;
   ^~~~~~~~~~~~~~~~~
In file included from src/haptic/windows/SDL_syshaptic.c:34:0:
src/haptic/windows/../../joystick/windows/SDL_dxjoystick_c.h:75:3: error: conflicting types for 'XINPUT_STATE_EX'
 } XINPUT_STATE_EX;
   ^~~~~~~~~~~~~~~
In file included from src/haptic/windows/../../joystick/windows/SDL_dxjoystick_c.h:42:0,
                 from src/haptic/windows/SDL_syshaptic.c:34:
C:/git-sdk-64/mingw64/x86_64-w64-mingw32/include/xinput.h:192:3: note: previous declaration of 'XINPUT_STATE_EX' was here
 } XINPUT_STATE_EX, *PXINPUT_STATE_EX;
   ^~~~~~~~~~~~~~~
make[2]: *** [Makefile:168: src/haptic/windows/SDL_syshaptic.o] Error 1
make[2]: Leaving directory '/hellcrawl/crawl-ref/source/contrib/sdl2'
make[1]: *** [Makefile:24: sdl2] Error 2
make[1]: Leaving directory '/hellcrawl/crawl-ref/source/contrib'
make: *** [Makefile:1571: .contrib-libs] Error 2