version up : webp 0.3.0 and specify so version.

component/imagemagick/buildout.cfg

@@ -36,6 +36,7 @@ md5sum = ee01558201041a9978dd14b1db946ce8
 depends =
   ${libtiff:version}
   ${libpng:so_version}
+  ${webp:so_version}
 configure-options =
   --disable-static
   --without-x

component/leptonica/buildout.cfg

@@ -15,6 +15,7 @@ url = http://leptonica.googlecode.com/files/leptonica-1.68.tar.gz
 md5sum = 5cd7092f9ff2ca7e3f3e73bfcd556403
 depends =
   ${libpng:so_version}
+  ${webp:so_version}
 configure-command =
   ./autogen.sh
   ./configure --prefix=${buildout:parts-directory}/${:_buildout_section_name_} --disable-static

component/webp/buildout.cfg

@@ -10,10 +10,11 @@ extends =
 
 [webp]
 recipe = slapos.recipe.cmmi
-url = https://webp.googlecode.com/files/libwebp-0.1.3.tar.gz
-md5sum = 254d4670e14e9ed881f0536b006ab336
+url = https://webp.googlecode.com/files/libwebp-0.3.0.tar.gz
+md5sum = 4183f4f51ada98976f14e7bd51f30938
 depends =
   ${libpng:so_version}
+so_version = 4
 configure-options =
   --disable-static
   --with-jpegincludedir=${libjpeg:location}/include