Fix nim-lang#13633

Clyybber · Mar 12, 2020 · d84c4bb · d84c4bb
1 parent bbc231f
commit d84c4bb
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/compiler/extccomp.nim b/compiler/extccomp.nim
@@ -998,10 +998,11 @@ proc writeJsonBuildInstructions*(conf: ConfigRef) =
       f.write escapeJson(x)
 
   proc cfiles(conf: ConfigRef; f: File; buf: var string; clist: CfileList, isExternal: bool) =
+    var comma = false
     for i, it in clist:
       if CfileFlag.Cached in it.flags: continue
       let compileCmd = getCompileCFileCmd(conf, it)
-      if i > 0: lit ",\L"
+      if comma: lit ",\L"; comma = false
       lit "["
       str it.cname.string
       lit ", "