Examples of errors detected by the V1040 diagnostic
V1040. Possible typo in the spelling of a pre-defined macro name.
libuv
V1040 Possible typo in the spelling of a pre-defined macro name. The '__MINGW32_' macro is similar to '__MINGW32__'. winapi.h 4112
/* from winternl.h */
#if !defined(__UNICODE_STRING_DEFINED) && defined(__MINGW32_)
#define __UNICODE_STRING_DEFINED
#endif
SimpleIni
V1040 Possible typo in the spelling of a pre-defined macro name. The '_linux' macro is similar to '__linux'. SimpleIni.h 2923
#if defined(SI_NO_MBSTOWCS_NULL) || (!defined(_MSC_VER) && !defined(_linux))