From f9807e9f13f720006eed2a2daa1a2a2422ebfb86 Mon Sep 17 00:00:00 2001
From: Myk Melez <myk@mykzilla.org>
Date: Fri, 27 Jul 2018 10:32:27 -0700
Subject: [PATCH] __acrt_iob_func() -> __iob_func() on Appveyor

Works around https://github.com/rust-lang/rust/issues/47048 via workaround described in https://github.com/nabijaczleweli/cargo-update/issues/74.
---
 .appveyor.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/.appveyor.yml b/.appveyor.yml
index cad91355..54a20076 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -12,6 +12,11 @@ install:
   - rust-nightly-%TARGET%.exe /VERYSILENT /NORESTART /DIR="C:\Program Files (x86)\Rust"
   - set PATH=%PATH%;C:\Program Files (x86)\Rust\bin
   - if defined MSYS_BITS set PATH=%PATH%;C:\msys64\mingw%MSYS_BITS%\bin
+  -
+  # Fix undefined references to __acrt_iob_func() per
+  # https://github.com/nabijaczleweli/cargo-update/issues/74#issuecomment-376581009
+  - sed -rie "s/#define std([[:alpha:]]+)[[:space:]]+\(__acrt_iob_func\(([[:digit:]]+)\)\)/#define std\1 (\&__iob_func()[\2])/" "C:\msys64\mingw64\x86_64-w64-mingw32\include\stdio.h"
+  -
   - rustc -V
   - cargo -V