https://bugs.gentoo.org/875701
--- a/fcgi_request.c
+++ b/fcgi_request.c
@@ -10,6 +10,7 @@
 
 #include "fcgi_header.h"
 #include "fcgi_request.h"
+#include "fcgi_server.h"
 
 #include "mod_fastcgi_handler.h"
 
--- a/fcgi_server.c
+++ b/fcgi_server.c
@@ -7,6 +7,7 @@
 #include <httpd.h>
 #include <http_config.h>
 #include <http_log.h>
+#include <http_request.h>
 #include <util_filter.h>
 #include <util_script.h>
 
@@ -424,6 +425,8 @@ int fcgi_server_parse_headers(fcgi_request_t *fr, uint16_t request_id,
 		 */
 		return HTTP_MOVED_TEMPORARILY;
 	}
+
+	return ret;
 }
 
 int fcgi_server_recv_stdout_stderr_record(fcgi_request_t *fr,