From ad735d6ed2b4a80483dea3486660560fedb44a2f Mon Sep 17 00:00:00 2001
From: Shaun Jackman <sjackman@gmail.com>
Date: Mon, 20 Jul 2020 10:26:40 -0700
Subject: [PATCH] Change the default locale to C.UTF-8 on Linux

Change the default locale from en_US.UTF-8 to C.UTF-8 on Linux.
The former locale is not included by default in common Docker images,
whereas the latter locale is included by default.
The default locale remains en_US.UTF-8 on macOS.
---
 Library/Homebrew/brew.sh | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/Library/Homebrew/brew.sh b/Library/Homebrew/brew.sh
index f53ee7ddb2..f0bafb577e 100644
--- a/Library/Homebrew/brew.sh
+++ b/Library/Homebrew/brew.sh
@@ -1,7 +1,19 @@
+HOMEBREW_PROCESSOR="$(uname -m)"
+HOMEBREW_SYSTEM="$(uname -s)"
+case "$HOMEBREW_SYSTEM" in
+  Darwin) HOMEBREW_MACOS="1" ;;
+  Linux)  HOMEBREW_LINUX="1" ;;
+esac
+
 # Force UTF-8 to avoid encoding issues for users with broken locale settings.
 if [[ "$(locale charmap 2>/dev/null)" != "UTF-8" ]]
 then
-  export LC_ALL="en_US.UTF-8"
+  if [[ -n "$HOMEBREW_MACOS" ]]
+  then
+    export LC_ALL="en_US.UTF-8"
+  else
+    export LC_ALL="C.UTF-8"
+  fi
 fi
 
 # USER isn't always set so provide a fall back for `brew` and subprocesses.
@@ -87,13 +99,6 @@ then
   odie "Cowardly refusing to continue at this prefix: $HOMEBREW_PREFIX"
 fi
 
-HOMEBREW_PROCESSOR="$(uname -m)"
-HOMEBREW_SYSTEM="$(uname -s)"
-case "$HOMEBREW_SYSTEM" in
-  Darwin) HOMEBREW_MACOS="1" ;;
-  Linux)  HOMEBREW_LINUX="1" ;;
-esac
-
 if [[ -n "$HOMEBREW_FORCE_BREWED_CURL" &&
       -x "$HOMEBREW_PREFIX/opt/curl/bin/curl" ]] &&
          "$HOMEBREW_PREFIX/opt/curl/bin/curl" --version >/dev/null