From b36f72c6005a838a6c767dc04cedf97ded813493 Mon Sep 17 00:00:00 2001
From: Fredrik Ekre <ekrefredrik@gmail.com>
Date: Sat, 25 May 2019 11:31:35 +0200
Subject: [PATCH] Fully qualify at-everywhere, fixes #28966.

---
 stdlib/Distributed/src/macros.jl            |  2 +-
 stdlib/Distributed/test/distributed_exec.jl | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/stdlib/Distributed/src/macros.jl b/stdlib/Distributed/src/macros.jl
index 4285073ec90a30..d85e2af8f2e7de 100644
--- a/stdlib/Distributed/src/macros.jl
+++ b/stdlib/Distributed/src/macros.jl
@@ -172,7 +172,7 @@ Equivalent to calling `remotecall_eval(Main, procs, expr)`.
 """
 macro everywhere(ex)
     procs = GlobalRef(@__MODULE__, :procs)
-    return esc(:(@everywhere $procs() $ex))
+    return esc(:($(Distributed).@everywhere $procs() $ex))
 end
 
 macro everywhere(procs, ex)
diff --git a/stdlib/Distributed/test/distributed_exec.jl b/stdlib/Distributed/test/distributed_exec.jl
index 90ecb16f82230f..44ba3c2fe6a7d4 100644
--- a/stdlib/Distributed/test/distributed_exec.jl
+++ b/stdlib/Distributed/test/distributed_exec.jl
@@ -1614,6 +1614,17 @@ for T in (UInt8, Int8, UInt16, Int16, UInt32, Int32, UInt64)
     @test n == 55
 end
 
+# issue #28966
+let code = """
+    import Distributed
+    Distributed.@everywhere f() = myid()
+    for w in Distributed.workers()
+        @assert Distributed.remotecall_fetch(f, w) == w
+    end
+    """
+    @test success(`$(Base.julia_cmd()) --startup-file=no -p1 -e $code`)
+end
+
 # Run topology tests last after removing all workers, since a given
 # cluster at any time only supports a single topology.
 rmprocs(workers())