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-rw-r--r--src/compat/compat.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/compat/compat.h b/src/compat/compat.h
index 51ed03eef4..75f47bc700 100644
--- a/src/compat/compat.h
+++ b/src/compat/compat.h
@@ -10,14 +10,17 @@
#include <config/bitcoin-config.h>
#endif
+// Windows defines FD_SETSIZE to 64 (see _fd_types.h in mingw-w64),
+// which is too small for our usage, but allows us to redefine it safely.
+// We redefine it to be 1024, to match glibc, see typesizes.h.
#ifdef WIN32
#ifdef FD_SETSIZE
-#undef FD_SETSIZE // prevent redefinition compiler warning
+#undef FD_SETSIZE
#endif
-#define FD_SETSIZE 1024 // max number of fds in fd_set
+#define FD_SETSIZE 1024
#include <winsock2.h>
#include <ws2tcpip.h>
-#include <stdint.h>
+#include <cstdint>
#else
#include <fcntl.h>
#include <sys/mman.h>