module OS
  def self.mac?
    /darwin/i === RUBY_PLATFORM
  end

  def self.linux?
    /linux/i === RUBY_PLATFORM || /linux/i === RbConfig::CONFIG["host_os"]
  end

  require "os/mac"
  if OS.mac?
    GITHUB_REPOSITORY = "homebrew"
    ISSUES_URL = "https://git.io/brew-troubleshooting"
    PATH_OPEN = "/usr/bin/open"
    PATH_PATCH = "/usr/bin/patch"
    # compatibility
    ::MACOS_FULL_VERSION = OS::Mac.full_version.to_s
    ::MACOS_VERSION = OS::Mac.version.to_s
    ::OS_VERSION = "OS X #{MACOS_FULL_VERSION}"
  elsif OS.linux?
    GITHUB_REPOSITORY = "linuxbrew"
    ISSUES_URL = "https://github.com/Homebrew/#{GITHUB_REPOSITORY}/blob/master/share/doc/homebrew/Troubleshooting.md#troubleshooting"
    PATH_OPEN = "xdg-open"
    PATH_PATCH = "patch"
    # compatibility
    ::MACOS_FULL_VERSION = OS::Mac.full_version.to_s
    ::MACOS_VERSION = OS::Mac.version.to_s
    ::OS_VERSION = RUBY_PLATFORM
  else
    raise "Unknown operating system"
  end
end

module OS
  def self.mac?
    /darwin/i === RUBY_PLATFORM
  end

  def self.linux?
    /linux/i === RUBY_PLATFORM
  end

  require "os/mac"
  if OS.mac?
    GITHUB_REPOSITORY = "homebrew"
    ISSUES_URL = "https://git.io/brew-troubleshooting"
    PATH_OPEN = "/usr/bin/open"
    PATH_PATCH = "/usr/bin/patch"
    # compatibility
    ::MACOS_FULL_VERSION = OS::Mac.full_version.to_s
    ::MACOS_VERSION = OS::Mac.version.to_s
    ::OS_VERSION = "OS X #{MACOS_FULL_VERSION}"
  elsif OS.linux?
    GITHUB_REPOSITORY = "linuxbrew"
    ISSUES_URL = "https://github.com/Homebrew/#{GITHUB_REPOSITORY}/blob/master/share/doc/homebrew/Troubleshooting.md#troubleshooting"
    PATH_OPEN = "xdg-open"
    PATH_PATCH = "patch"
    # compatibility
    ::MACOS_FULL_VERSION = OS::Mac.full_version.to_s
    ::MACOS_VERSION = OS::Mac.version.to_s
    ::OS_VERSION = RUBY_PLATFORM
  else
    raise "Unknown operating system"
  end
end

--- 
+++ 
@@ -4,7 +4,7 @@
   end
 
   def self.linux?
-    /linux/i === RUBY_PLATFORM
+    /linux/i === RUBY_PLATFORM || /linux/i === RbConfig::CONFIG["host_os"]
   end
 
   require "os/mac"
Fix OS detection for JRuby on Linuxbrew

Included an extra check for whether the OS was Linux or not. RUBY_PLATFORM
returns "java" on Linux if using JRuby, which is Fedora's default, for
example.

Closes Homebrew/linuxbrew#653.

Signed-off-by: Shaun Jackman <b580dab3251a9622aba3803114310c23fdb42900@gmail.com>
