diff -up ./Curl.xs.orig ./Curl.xs
--- ./Curl.xs.orig	2019-10-18 07:45:38.380881448 +0200
+++ ./Curl.xs	2019-10-18 07:46:20.712032844 +0200
@@ -47,7 +47,7 @@ typedef enum {
 
 typedef struct {
     /* The main curl handle */
-    struct CURL *curl;
+    CURL *curl;
     I32 *y;
     /* Lists that can be set via curl_easy_setopt() */
     struct curl_slist *slist[SLIST_LAST];
@@ -73,7 +73,7 @@ typedef struct {
 #ifdef __CURL_MULTI_H
     struct CURLM *curlm;
 #else
-    struct void *curlm;
+    void *curlm;
 #endif
 } perl_curl_multi;