From 574f61315d015033dbf20e4840a645057b0c2060 Mon Sep 17 00:00:00 2001
From: Timothee Cour <timothee.cour2@gmail.com>
Date: Wed, 5 Feb 2020 07:44:19 -0800
Subject: [PATCH] nim secret: support linenoise when available (#13328)

---
 compiler/llstream.nim | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/compiler/llstream.nim b/compiler/llstream.nim
index fffc8db48eef2..b550716d6290c 100644
--- a/compiler/llstream.nim
+++ b/compiler/llstream.nim
@@ -12,9 +12,9 @@
 import
   pathutils
 
-# support '-d:useGnuReadline' for backwards compatibility:
-when not defined(windows) and (defined(useGnuReadline) or defined(useLinenoise)):
-  import rdstdin
+template imp(x) = import x
+const hasRstdin = compiles(imp(rdstdin))
+when hasRstdin: import rdstdin
 
 type
   TLLRepl* = proc (s: PLLStream, buf: pointer, bufLen: int): int
@@ -67,7 +67,7 @@ proc llStreamClose*(s: PLLStream) =
   of llsFile:
     close(s.f)
 
-when not declared(readLineFromStdin):
+when not hasRstdin:
   # fallback implementation:
   proc readLineFromStdin(prompt: string, line: var string): bool =
     stderr.write(prompt)