From bbf0b5c0e635029f46240b4ee8d39a712c12cbab Mon Sep 17 00:00:00 2001
From: Syo Ikeda <suicaicoca@gmail.com>
Date: Wed, 14 Aug 2013 16:02:06 +0900
Subject: [PATCH] Use 'default_subspec' and separate the WebP support to its
 sub-spec

This removes unnecessary dependency to 'libwebp' for users who don't need WebP support.
---
 SDWebImage.podspec | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/SDWebImage.podspec b/SDWebImage.podspec
index 64632c48..32be0002 100644
--- a/SDWebImage.podspec
+++ b/SDWebImage.podspec
@@ -17,14 +17,23 @@ Pod::Spec.new do |s|
                   'and performances!'
 
   s.requires_arc = true
-  s.source_files = 'SDWebImage/{NS,SD,UI}*.{h,m}'
   s.framework = 'ImageIO'
+  
+  s.default_subspec = 'Core'
 
-  s.dependency 'libwebp'
+  s.subspec 'Core' do |core|
+    core.source_files = 'SDWebImage/{NS,SD,UI}*.{h,m}'
+    core.exclude_files = 'SDWebImage/UIImage+WebP.{h,m}'
+  end
 
-  # TODO currently CocoaPods always tries to install the subspec even if the dependency is on just 'SDWebImage'
   s.subspec 'MapKit' do |mk|
     mk.source_files = 'SDWebImage/MKAnnotationView+WebCache.*'
     mk.framework = 'MapKit'
   end
+
+  s.subspec 'WebP' do |webp|
+    webp.source_files = 'SDWebImage/UIImage+WebP.{h,m}'
+    webp.xcconfig = { 'GCC_PREPROCESSOR_DEFINITIONS' => '$(inherited) SD_WEBP=1' }
+    webp.dependency 'libwebp'
+  end
 end