fix issue #426: fix pipe function in MinGW
@ -13,6 +13,10 @@
#include <unistd.h>
#endif
#include "util.h"
#ifdef __MINGW32__
#include <fcntl.h>
#define pipe(fds) _pipe(fds, 1024, _O_BINARY)
static int encode_null_callback(const char *buffer, size_t size, void *data)
{