From dfdd7033f7cf0cdb58003e4c4d2b6b5c6864a6da Mon Sep 17 00:00:00 2001
From: Fredrik Ekre <ekrefredrik@gmail.com>
Date: Mon, 27 May 2024 13:32:56 +0200
Subject: [PATCH] Fix Runic.main on old Julia versions.

---
 src/Runic.jl |  5 +----
 src/main.jl  | 12 ++++++++++--
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/src/Runic.jl b/src/Runic.jl
index 1cdcb6b..33b9c49 100644
--- a/src/Runic.jl
+++ b/src/Runic.jl
@@ -461,9 +461,6 @@ function format_file(inputfile::AbstractString, outputfile::AbstractString = inp
 end
 
 include("runestone.jl")
-
-if isdefined(Base, Symbol("@main"))
-    include("main.jl")
-end
+include("main.jl")
 
 end # module
diff --git a/src/main.jl b/src/main.jl
index 4517f51..10654de 100644
--- a/src/main.jl
+++ b/src/main.jl
@@ -1,6 +1,10 @@
 # SPDX-License-Identifier: MIT
 
-errno::Cint = 0
+@static if VERSION >= v"1.8"
+    errno::Cint = 0
+else
+    errno = 0
+end
 
 function panic(msg...)
     printstyled(stderr, "ERROR: "; color = :red, bold = true)
@@ -16,7 +20,7 @@ function panic(msg...)
     return errno
 end
 
-function (@main)(argv)
+function main(argv)
     # Reset errno
     global errno = 0
 
@@ -146,3 +150,7 @@ function (@main)(argv)
 
     return errno
 end
+
+@static if isdefined(Base, Symbol("@main"))
+    @main
+end