From 40cd44a45f13733c8acc09f050c53c04e940c19c Mon Sep 17 00:00:00 2001
From: Maxim Belkin <maxim.belkin@gmail.com>
Date: Mon, 14 Dec 2020 16:49:52 -0600
Subject: [PATCH] cmd/vendor-install.sh: fail for old Glibc

---
 Library/Homebrew/cmd/vendor-install.sh | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/Library/Homebrew/cmd/vendor-install.sh b/Library/Homebrew/cmd/vendor-install.sh
index 42e1b69d29..df2783810e 100644
--- a/Library/Homebrew/cmd/vendor-install.sh
+++ b/Library/Homebrew/cmd/vendor-install.sh
@@ -32,6 +32,24 @@ then
   esac
 fi
 
+if [[ -n "$HOMEBREW_LINUX" ]]
+then
+  LDD_VERSION_OUTPUT=$(/usr/bin/ldd --version)
+  if [[ $LDD_VERSION_OUTPUT =~ \ [0-9]\.[0-9]+ ]]
+  then
+    LDD_VERSION=${BASH_REMATCH[0]}
+    LDD_VERSION_MAJOR=${LDD_VERSION%.*}
+    LDD_VERSION_MINOR=${LDD_VERSION#*.}
+    if (( LDD_VERSION_MAJOR < 2 || LDD_VERSION_MINOR < 13 ))
+    then
+      odie "Vendored tools require system Glibc 2.13 or later"
+    fi
+  else
+    odie "Failed to detect system Glibc version"
+  fi
+  unset LDD_VERSION_OUTPUT LDD_VERSION LDD_VERSION_MAJOR LDD_VERSION_MINOR
+fi
+
 # Execute the specified command, and suppress stderr unless HOMEBREW_STDERR is set.
 quiet_stderr() {
   if [[ -z "$HOMEBREW_STDERR" ]]; then