From 53a7c00d77e488d35dbcdbae6db6760375508633 Mon Sep 17 00:00:00 2001
From: Hendrik Ranocha <ranocha@users.noreply.github.com>
Date: Wed, 31 Aug 2022 14:12:01 +0200
Subject: [PATCH] Improve inferrability of `open(f, cmd, ...)`  (#46551)

This fixes invalidations from loading Static.jl

(cherry picked from commit 7537cb3990355d3c08f2f15b82e4bf54ecac3e0f)
---
 base/process.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/base/process.jl b/base/process.jl
index 016c495a76a8b..719d1d5436ada 100644
--- a/base/process.jl
+++ b/base/process.jl
@@ -430,7 +430,7 @@ function open(f::Function, cmds::AbstractCmd, args...; kwargs...)
         rethrow()
     end
     close(P.in)
-    if !eof(P.out)
+    if !(eof(P.out)::Bool)
         waitkill(P)
         throw(_UVError("open(do)", UV_EPIPE))
     end