Permit mod_proxy_hcheck.c to compile on Win32 32-bit architectures.

This decoration is required for all apr_thread fn() entry points,
at least on some platforms.



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1753777 13f79535-47bb-0310-9956-ffa450edef68

modules/proxy/mod_proxy_hcheck.c

@@ -775,7 +775,7 @@ static apr_status_t hc_check_http(sctx_t *ctx, apr_pool_t *ptemp, proxy_worker *
     return backend_cleanup("HCOH", backend, ctx->s, status);
 }
 
-static void *hc_check(apr_thread_t *thread, void *b)
+static void * APR_THREAD_FUNC hc_check(apr_thread_t *thread, void *b)
 {
     baton_t *baton = (baton_t *)b;
     sctx_t *ctx = baton->ctx;