From 4ddb8feb939f57ea8df1ae9e05f47e26cd031209 Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Thu, 19 Nov 2020 13:42:16 +0100
Subject: [PATCH] fixes #15942 [backport:1.2] [backport:1.4] (#16051)

(cherry picked from commit 1efd11e2666403fecf1b9b3b933c1adca13d8069)
---
 compiler/cgen.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/cgen.nim b/compiler/cgen.nim
index 9a50b718c7..77fdde3132 100644
--- a/compiler/cgen.nim
+++ b/compiler/cgen.nim
@@ -244,7 +244,7 @@ proc safeLineNm(info: TLineInfo): int =
 
 proc genCLineDir(r: var Rope, filename: string, line: int; conf: ConfigRef) =
   assert line >= 0
-  if optLineDir in conf.options:
+  if optLineDir in conf.options and line > 0:
     r.addf("$N#line $2 $1$N",
         [rope(makeSingleLineCString(filename)), rope(line)])