diff --git a/lib/libwebsockets.h b/lib/libwebsockets.h
index ee2002c7..2a9fc6c1 100644
--- a/lib/libwebsockets.h
+++ b/lib/libwebsockets.h
@@ -4341,7 +4341,7 @@ lws_cgi_kill(struct lws *wsi);
 
 struct lws_plat_file_ops;
 
-#if defined(WIN32) || defined(_WIN32)
+#if (defined(WIN32) || defined(_WIN32)) && !defined(__MINGW32__)
 /* ... */
 #if !defined(ssize_t)
 typedef SSIZE_T ssize_t;
diff --git a/lib/lws-plat-win.c b/lib/lws-plat-win.c
index 67c98f4b..b8dd4f02 100644
--- a/lib/lws-plat-win.c
+++ b/lib/lws-plat-win.c
@@ -526,7 +526,7 @@ lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
 }
 
 LWS_VISIBLE lws_fop_fd_t
-_lws_plat_file_open(struct lws_plat_file_ops *fops, const char *filename,
+_lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
 		    const char *vpath, lws_fop_flags_t *flags)
 {
 	HANDLE ret;
diff --git a/lib/ssl.c b/lib/ssl.c
index 3b6c4a03..84e79830 100644
--- a/lib/ssl.c
+++ b/lib/ssl.c
@@ -21,6 +21,10 @@
 
 #include "private-libwebsockets.h"
 
+/* workaround for mingw */
+#if !defined(ECONNABORTED)
+#define ECONNABORTED 103
+#endif
 
 int openssl_websocket_private_data_index,
     openssl_SSL_CTX_private_data_index;