From 7898f2a78520184dee88fc02c2867db8cf796408 Mon Sep 17 00:00:00 2001
From: alaviss <alaviss@users.noreply.github.com>
Date: Fri, 17 Aug 2018 16:09:33 +0700
Subject: [PATCH] scriptconfig: register passes once (#8590)

fixes #8235
---
 compiler/scriptconfig.nim | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/compiler/scriptconfig.nim b/compiler/scriptconfig.nim
index f3d6ccfdd8..659206a40c 100644
--- a/compiler/scriptconfig.nim
+++ b/compiler/scriptconfig.nim
@@ -159,8 +159,11 @@ proc runNimScript*(cache: IdentCache; scriptName: string;
 
   defineSymbol(conf.symbols, "nimscript")
   defineSymbol(conf.symbols, "nimconfig")
-  registerPass(graph, semPass)
-  registerPass(graph, evalPass)
+  var registeredPasses {.global.} = false
+  if not registeredPasses:
+    registerPass(graph, semPass)
+    registerPass(graph, evalPass)
+    registeredPasses = true
 
   conf.searchPaths.add(conf.libpath)