https://git.ruby-lang.org/ruby.git/commit/?id=2c55ba7191

From 2c55ba7191a69dd4db34572754162308f0a9acdd Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Sun, 10 Nov 2019 10:09:26 +0900
Subject: Define NULLCMD as an empty label [Bug #16331]


diff --git a/win32/Makefile.sub b/win32/Makefile.sub
index a2521d4..88ba8b5 100644
--- a/win32/Makefile.sub
+++ b/win32/Makefile.sub
@@ -4,6 +4,7 @@ SHELL = $(COMSPEC) https://github.com/ruby/ruby/blob/trunk/win32/Makefile.sub#L4
 ECHO1 = $(V:1=@:)
 RUNCMD = $(COMSPEC) /c
 MKFILES = Makefile verconf.mk
+NULLCMD = :
 NULL = nul
 CHDIR = cd
 PATH_SEPARATOR = ;
-- 
cgit v0.10.2


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