wasi.h

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#ifndef __CWIST_SYS_WASI_H__
#define __CWIST_SYS_WASI_H__
 
#if defined(__wasi__)
/* Both preview1 and wasip2 ship a <sys/socket.h> file, but only wasip2's
 * declares anything (wasi:sockets); preview1's is an empty placeholder.
 * wasi-libc pairs the real socket surface with <netdb.h>, which preview1
 * does not ship at all - use it as the discriminator. */
#if defined(__has_include)
#if __has_include(<netdb.h>)
#define CWIST_WASI_SOCKETS 1
#else
#define CWIST_WASI_NO_SOCKETS 1
#endif
#else
#define CWIST_WASI_NO_SOCKETS 1
#endif
#endif
 
#endif /* __CWIST_SYS_WASI_H__ */