Symlink ld.so [Linux]

Library/Homebrew/extend/os/install.rb

@@ -0,0 +1 @@
+require "extend/os/linux/install" if OS.linux?

Library/Homebrew/extend/os/linux/install.rb

@@ -0,0 +1,34 @@
+module Homebrew
+  module Install
+    module_function
+
+    DYNAMIC_LINKERS = [
+      "/lib64/ld-linux-x86-64.so.2",
+      "/lib/ld-linux.so.3",
+      "/lib/ld-linux.so.2",
+      "/lib/ld-linux-aarch64.so.1",
+      "/lib/ld-linux-armhf.so.3",
+      "/system/bin/linker64",
+      "/system/bin/linker",
+    ].freeze
+
+    def symlink_ld_so
+      brew_ld_so = HOMEBREW_PREFIX/"lib/ld.so"
+      return if brew_ld_so.readable?
+
+      ld_so = HOMEBREW_PREFIX/"opt/glibc/lib/ld-linux-x86-64.so.2"
+      unless ld_so.readable?
+        ld_so = DYNAMIC_LINKERS.find { |s| File.executable? s }
+        raise "Unable to locate the system's dynamic linker" unless ld_so
+      end
+
+      FileUtils.mkdir_p HOMEBREW_PREFIX/"lib"
+      FileUtils.ln_sf ld_so, brew_ld_so
+    end
+
+    def perform_preinstall_checks
+      generic_perform_preinstall_checks
+      symlink_ld_so
+    end
+  end
+end

Library/Homebrew/install.rb

@@ -36,6 +36,8 @@ module Homebrew
       attempt_directory_creation
       fatal_checks(:fatal_install_checks)
     end
+    alias generic_perform_preinstall_checks perform_preinstall_checks
+    module_function :generic_perform_preinstall_checks
 
     def fatal_checks(type)
       @checks ||= Diagnostic::Checks.new
@@ -51,3 +53,5 @@ module Homebrew
     end
   end
 end
+
+require "extend/os/install"