From dca872a74ca363fd9a0425886f3babcd38389464 Mon Sep 17 00:00:00 2001
From: Nikita Vasilyev <me@elv1s.ru>
Date: Wed, 2 Feb 2011 22:49:13 +0300
Subject: [PATCH] Simplify installation. Add OS-specific dependencies to the
 gemspec.
 http://stackoverflow.com/questions/4596606/rubygems-how-do-i-add-platform-specific-dependency

I suggest you to not use Jeweler.
http://yehudakatz.com/2010/04/02/using-gemspecs-as-intended/
---
 README.md              |  4 ++--
 em-dir-watcher.gemspec | 10 +++++++---
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index f82a513..b8977a5 100644
--- a/README.md
+++ b/README.md
@@ -35,11 +35,11 @@ Mac:
 
 Linux:
 
-    sudo gem install rb-inotify em-dir-watcher
+    sudo gem install em-dir-watcher
 
 Windows:
 
-    gem install win32-changenotify win32-event em-dir-watcher
+    gem install em-dir-watcher
 
 
 Usage
diff --git a/em-dir-watcher.gemspec b/em-dir-watcher.gemspec
index 5e9d1a2..e457677 100644
--- a/em-dir-watcher.gemspec
+++ b/em-dir-watcher.gemspec
@@ -1,6 +1,3 @@
-# Generated by jeweler
-# DO NOT EDIT THIS FILE DIRECTLY
-# Instead, edit Jeweler::Tasks in Rakefile, and run the gemspec command
 # -*- encoding: utf-8 -*-
 
 Gem::Specification.new do |s|
@@ -52,6 +49,13 @@ Gem::Specification.new do |s|
      "examples/monitor.rb"
   ]
 
+  if RUBY_PLATFORM[/linux/]
+    s.add_dependency('rb-inotify', '>= 0.8.0')
+  elsif RUBY_PLATFORM[/ming/]
+    s.add_dependency('win32-event', '>= 0.5.0')
+    s.add_dependency('win32-changenotify', '>= 0.5.0')
+  end
+
   if s.respond_to? :specification_version then
     current_version = Gem::Specification::CURRENT_SPECIFICATION_VERSION
     s.specification_version = 3