From 66b6f3742d78e3f0b88cb6e997074c47ca28622a Mon Sep 17 00:00:00 2001
From: Paul Berg <paul@plutojl.org>
Date: Tue, 1 Feb 2022 15:56:18 +0100
Subject: [PATCH] fix is_stdlib() for nightly and enable nightly tests (#1874)

---
 src/packages/PkgCompat.jl | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/packages/PkgCompat.jl b/src/packages/PkgCompat.jl
index 9d5d812385..ff79a30176 100644
--- a/src/packages/PkgCompat.jl
+++ b/src/packages/PkgCompat.jl
@@ -215,7 +215,15 @@ end
 
 # (⚠️ Internal API with fallback)
 _stdlibs() = try
-	values(Pkg.Types.stdlibs())
+	stdlibs = values(Pkg.Types.stdlibs())
+	T = eltype(stdlibs)
+	if T == String
+		stdlibs
+	elseif T <: Tuple{String,Any}
+		first.(stdlibs)
+	else
+		error()
+	end
 catch e
 	@warn "Pkg compat: failed to load standard libraries." exception=(e,catch_backtrace())