From cc664066b063e85a9c9c5b56d5d2611101e77b02 Mon Sep 17 00:00:00 2001
From: Kenta Sato <bicycle1885@gmail.com>
Date: Mon, 2 Aug 2021 17:30:24 +0900
Subject: [PATCH] guard `isempty (close #41656) (#41752)

(cherry picked from commit 4c3829d413a12c2b4a87952e0f6d1ecbbff63239)
---
 contrib/generate_precompile.jl | 2 +-
 test/misc.jl                   | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/contrib/generate_precompile.jl b/contrib/generate_precompile.jl
index 06166a9726930..28be1a992efda 100644
--- a/contrib/generate_precompile.jl
+++ b/contrib/generate_precompile.jl
@@ -1,6 +1,6 @@
 # This file is a part of Julia. License is MIT: https://julialang.org/license
 
-if isempty(Base.ARGS) || Base.ARGS[1] !== "0"
+if Base.isempty(Base.ARGS) || Base.ARGS[1] !== "0"
 Sys.__init_build()
 # Prevent this from being put into the Main namespace
 @eval Module() begin
diff --git a/test/misc.jl b/test/misc.jl
index e069267ae3bed..30369830cf04b 100644
--- a/test/misc.jl
+++ b/test/misc.jl
@@ -912,3 +912,6 @@ end
 @testset "issue #28188" begin
     @test `$(@__FILE__)` == let file = @__FILE__; `$file` end
 end
+
+# issue #41656
+@test success(`$(Base.julia_cmd()) -e 'isempty(x) = true'`)