Win32: MSVC 2015 compatibility.

Resolved warnings about declarations that hide previous local declarations.
Warnings about WSASocketA() being deprecated resolved by explicit use of
WSASocketW() instead of WSASocket().  When compiling without IPv6 support,
WinSock deprecated warnings are disabled to allow use of gethostbyname().

2 files changed, 5 insertions, 6 deletions

diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
index f3f78e804..668719fe5 100644
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -1770,7 +1770,6 @@ ngx_http_fastcgi_process_header(ngx_http_request_t *r)
 #if (NGX_HTTP_CACHE)
 
         if (f->large_stderr && r->cache) {
-            u_char                     *start;
             ssize_t                     len;
             ngx_http_fastcgi_header_t  *fh;
 
diff --git a/src/http/modules/ngx_http_map_module.c b/src/http/modules/ngx_http_map_module.c
index 3245e0413..2b80d0f10 100644
--- a/src/http/modules/ngx_http_map_module.c
+++ b/src/http/modules/ngx_http_map_module.c
@@ -375,7 +375,7 @@ ngx_http_map_cmp_dns_wildcards(const void *one, const void *two)
 static char *
 ngx_http_map(ngx_conf_t *cf, ngx_command_t *dummy, void *conf)
 {
-    ngx_int_t                   rc, index;
+    ngx_int_t                   rv, index;
     ngx_str_t                  *value, name;
     ngx_uint_t                  i, key;
     ngx_http_map_conf_ctx_t    *ctx;
@@ -546,19 +546,19 @@ found:
         value[0].data++;
     }
 
-    rc = ngx_hash_add_key(&ctx->keys, &value[0], var,
+    rv = ngx_hash_add_key(&ctx->keys, &value[0], var,
                           (ctx->hostnames) ? NGX_HASH_WILDCARD_KEY : 0);
 
-    if (rc == NGX_OK) {
+    if (rv == NGX_OK) {
         return NGX_CONF_OK;
     }
 
-    if (rc == NGX_DECLINED) {
+    if (rv == NGX_DECLINED) {
         ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
                            "invalid hostname or wildcard \"%V\"", &value[0]);
     }
 
-    if (rc == NGX_BUSY) {
+    if (rv == NGX_BUSY) {
         ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
                            "conflicting parameter \"%V\"", &value[0]);
     }