--- /dev/null
+http://lists.gnupg.org/pipermail/gnupg-devel/2008-April/024344.html
+
+Index: keyserver/gpgkeys_curl.c
+===================================================================
+--- keyserver/gpgkeys_curl.c (revision 4741)
++++ keyserver/gpgkeys_curl.c (working copy)
+@@ -286,7 +286,7 @@
+
+ if(follow_redirects)
+ {
+- curl_easy_setopt(curl,CURLOPT_FOLLOWLOCATION,1);
++ curl_easy_setopt(curl,CURLOPT_FOLLOWLOCATION,1L);
+ if(follow_redirects>0)
+ curl_easy_setopt(curl,CURLOPT_MAXREDIRS,follow_redirects);
+ }
+@@ -298,10 +298,10 @@
+ {
+ fprintf(console,"gpgkeys: curl version = %s\n",curl_version());
+ curl_easy_setopt(curl,CURLOPT_STDERR,console);
+- curl_easy_setopt(curl,CURLOPT_VERBOSE,1);
++ curl_easy_setopt(curl,CURLOPT_VERBOSE,1L);
+ }
+
+- curl_easy_setopt(curl,CURLOPT_SSL_VERIFYPEER,opt->flags.check_cert);
++ curl_easy_setopt(curl,CURLOPT_SSL_VERIFYPEER,(long)opt->flags.check_cert);
+ curl_easy_setopt(curl,CURLOPT_CAINFO,opt->ca_cert_file);
+
+ if(proxy)
+Index: keyserver/gpgkeys_hkp.c
+===================================================================
+--- keyserver/gpgkeys_hkp.c (revision 4741)
++++ keyserver/gpgkeys_hkp.c (working copy)
+@@ -202,9 +202,9 @@
+ fprintf(console,"gpgkeys: HTTP URL is `%s'\n",request);
+
+ curl_easy_setopt(curl,CURLOPT_URL,request);
+- curl_easy_setopt(curl,CURLOPT_POST,1);
++ curl_easy_setopt(curl,CURLOPT_POST,1L);
+ curl_easy_setopt(curl,CURLOPT_POSTFIELDS,key);
+- curl_easy_setopt(curl,CURLOPT_FAILONERROR,1);
++ curl_easy_setopt(curl,CURLOPT_FAILONERROR,1L);
+
+ res=curl_easy_perform(curl);
+ if(res!=0)
+@@ -661,7 +661,7 @@
+ {
+ fprintf(console,"gpgkeys: curl version = %s\n",curl_version());
+ curl_easy_setopt(curl,CURLOPT_STDERR,console);
+- curl_easy_setopt(curl,CURLOPT_VERBOSE,1);
++ curl_easy_setopt(curl,CURLOPT_VERBOSE,1L);
+ }
+
+ if(proxy)