Update revisions on libpng dependents

62 files changed, 131 insertions, 68 deletions

diff --git a/Library/Formula/analog.rb b/Library/Formula/analog.rb
index 797c7ab00..922f9ce02 100644
--- a/Library/Formula/analog.rb
+++ b/Library/Formula/analog.rb
@@ -4,10 +4,11 @@ class Analog < Formula
   homepage 'http://analog.cx'
   url 'http://analog.cx/analog-6.0.tar.gz'
   sha1 '17ad601f84e73c940883fb9b9e805879aac37493'
+  revision 1
 
   depends_on 'gd'
   depends_on 'jpeg'
-  depends_on :libpng
+  depends_on 'libpng'
 
   def install
     system "make", "CC=#{ENV.cc}",
diff --git a/Library/Formula/dcmtk.rb b/Library/Formula/dcmtk.rb
index 2ff5192a6..7ba624076 100644
--- a/Library/Formula/dcmtk.rb
+++ b/Library/Formula/dcmtk.rb
@@ -4,6 +4,7 @@ class Dcmtk < Formula
   homepage 'http://dicom.offis.de/dcmtk.php.en'
   url 'ftp://dicom.offis.de/pub/dicom/offis/software/dcmtk/dcmtk360/dcmtk-3.6.0.tar.gz'
   sha1 '469e017cffc56f36e834aa19c8612111f964f757'
+  revision 1
 
   option 'with-docs', 'Install development libraries/headers and HTML docs'
 
diff --git a/Library/Formula/devil.rb b/Library/Formula/devil.rb
index 105a58156..74f090a90 100644
--- a/Library/Formula/devil.rb
+++ b/Library/Formula/devil.rb
@@ -4,8 +4,9 @@ class Devil < Formula
   homepage 'http://sourceforge.net/projects/openil/'
   url 'https://downloads.sourceforge.net/project/openil/DevIL/1.7.8/DevIL-1.7.8.tar.gz'
   sha1 'bc27e3e830ba666a3af03548789700d10561fcb1'
+  revision 1
 
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'jpeg'
 
   option :universal
diff --git a/Library/Formula/dvdauthor.rb b/Library/Formula/dvdauthor.rb
index 0e830b3c8..3df482314 100644
--- a/Library/Formula/dvdauthor.rb
+++ b/Library/Formula/dvdauthor.rb
@@ -4,14 +4,15 @@ class Dvdauthor < Formula
   homepage 'http://dvdauthor.sourceforge.net/'
   url 'https://downloads.sourceforge.net/project/dvdauthor/dvdauthor/0.7.1/dvdauthor-0.7.1.tar.gz'
   sha1 'a9636d165bf546e3e2b25b7397c33dbfa2895e6a'
+  revision 1
 
   # Dvdauthor will optionally detect ImageMagick or GraphicsMagick, too.
   # But we don't add either as deps because they are big.
 
   depends_on 'pkg-config' => :build
   depends_on 'libdvdread'
-  depends_on :freetype
-  depends_on :libpng
+  depends_on 'freetype'
+  depends_on 'libpng'
 
   def install
     system "./configure", "--disable-dependency-tracking",
diff --git a/Library/Formula/ffmpegthumbnailer.rb b/Library/Formula/ffmpegthumbnailer.rb
index 45be0d27b..f4822b2c2 100644
--- a/Library/Formula/ffmpegthumbnailer.rb
+++ b/Library/Formula/ffmpegthumbnailer.rb
@@ -4,10 +4,11 @@ class Ffmpegthumbnailer < Formula
   homepage 'http://code.google.com/p/ffmpegthumbnailer/'
   url 'https://ffmpegthumbnailer.googlecode.com/files/ffmpegthumbnailer-2.0.8.tar.gz'
   sha1 '2c54ca16efd953f46547e22799cfc40bd9c24533'
+  revision 1
 
   depends_on 'pkg-config' => :build
   depends_on 'jpeg'
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'ffmpeg'
 
   def install
diff --git a/Library/Formula/fltk.rb b/Library/Formula/fltk.rb
index e11e0953e..45a4bfc7a 100644
--- a/Library/Formula/fltk.rb
+++ b/Library/Formula/fltk.rb
@@ -4,10 +4,11 @@ class Fltk < Formula
   homepage 'http://www.fltk.org/'
   url 'http://fossies.org/linux/misc/fltk-1.3.2-source.tar.gz'
   sha1 '25071d6bb81cc136a449825bfd574094b48f07fb'
+  revision 1
 
   option :universal
 
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'jpeg'
 
   fails_with :clang do
diff --git a/Library/Formula/fontforge.rb b/Library/Formula/fontforge.rb
index 1356b2df2..1b40a1849 100644
--- a/Library/Formula/fontforge.rb
+++ b/Library/Formula/fontforge.rb
@@ -2,6 +2,7 @@ require 'formula'
 
 class Fontforge < Formula
   homepage 'http://fontforge.org/'
+  revision 1
 
   stable do
     url 'https://downloads.sourceforge.net/project/fontforge/fontforge-source/fontforge_full-20120731-b.tar.bz2'
@@ -36,7 +37,7 @@ class Fontforge < Formula
   depends_on 'gettext'
   depends_on :python => :recommended
 
-  depends_on :libpng    => :recommended
+  depends_on 'libpng'   => :recommended
   depends_on 'jpeg'     => :recommended
   depends_on 'libtiff'  => :recommended
   depends_on :x11 if build.with? 'x'
diff --git a/Library/Formula/gdal.rb b/Library/Formula/gdal.rb
index 59a19e988..1170b1ecc 100644
--- a/Library/Formula/gdal.rb
+++ b/Library/Formula/gdal.rb
@@ -4,6 +4,7 @@ class Gdal < Formula
   homepage 'http://www.gdal.org/'
   url 'http://download.osgeo.org/gdal/1.10.1/gdal-1.10.1.tar.gz'
   sha1 'b4df76e2c0854625d2bedce70cc1eaf4205594ae'
+  revision 1
 
   head do
     url 'https://svn.osgeo.org/gdal/trunk/gdal'
@@ -17,7 +18,7 @@ class Gdal < Formula
   option 'enable-mdb', 'Build with Access MDB driver (requires Java 1.6+ JDK/JRE, from Apple or Oracle).'
 
   depends_on :python => :recommended
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'jpeg'
   depends_on 'giflib'
   depends_on 'libtiff'
diff --git a/Library/Formula/gl2ps.rb b/Library/Formula/gl2ps.rb
index d5bfbb64d..e0113962a 100644
--- a/Library/Formula/gl2ps.rb
+++ b/Library/Formula/gl2ps.rb
@@ -4,9 +4,10 @@ class Gl2ps < Formula
   homepage "http://www.geuz.org/gl2ps/"
   url "http://geuz.org/gl2ps/src/gl2ps-1.3.8.tgz"
   sha1 "792e11db0fe7a30a4dc4491af5098b047ec378b1"
+  revision 1
 
   depends_on "cmake" => :build
-  depends_on :libpng
+  depends_on "libpng"
 
   def install
     system "cmake", ".", *std_cmake_args
diff --git a/Library/Formula/graphicsmagick.rb b/Library/Formula/graphicsmagick.rb
index c3de8c4fe..29b26c3c8 100644
--- a/Library/Formula/graphicsmagick.rb
+++ b/Library/Formula/graphicsmagick.rb
@@ -5,6 +5,7 @@ class Graphicsmagick < Formula
   url 'https://downloads.sourceforge.net/project/graphicsmagick/graphicsmagick/1.3.19/GraphicsMagick-1.3.19.tar.bz2'
   sha256 'b57cdeb1ab9492b667776bbbc265149eda5601d2c572d65f43b44273e892fff1'
   head 'hg://http://graphicsmagick.hg.sourceforge.net:8000/hgroot/graphicsmagick/graphicsmagick'
+  revision 1
 
   option 'with-quantum-depth-8', 'Compile with a quantum depth of 8 bit'
   option 'with-quantum-depth-16', 'Compile with a quantum depth of 16 bit'
@@ -18,8 +19,8 @@ class Graphicsmagick < Formula
   depends_on 'pkg-config' => :build
 
   depends_on 'jpeg' => :recommended
-  depends_on :libpng => :recommended
-  depends_on :freetype => :recommended
+  depends_on 'libpng' => :recommended
+  depends_on 'freetype' => :recommended
 
   depends_on :x11 => :optional
   depends_on 'libtiff' => :optional
diff --git a/Library/Formula/hatari.rb b/Library/Formula/hatari.rb
index a61e2b121..d343983b5 100644
--- a/Library/Formula/hatari.rb
+++ b/Library/Formula/hatari.rb
@@ -4,11 +4,12 @@ class Hatari < Formula
   homepage 'http://hatari.tuxfamily.org'
   url 'http://download.tuxfamily.org/hatari/1.7.0/hatari-1.7.0.tar.bz2'
   sha1 '9961171c6d5f3742f93c903606c4956ce2e15ea0'
+  revision 1
 
   head 'http://hg.tuxfamily.org/mercurialroot/hatari/hatari', :using => :hg, :branch => 'default'
 
   depends_on 'cmake' => :build
-  depends_on 'libpng' if MacOS.version <= :leopard
+  depends_on 'libpng'
   depends_on 'sdl'
 
   def install
diff --git a/Library/Formula/htmldoc.rb b/Library/Formula/htmldoc.rb
index 40ffbdc09..39b71be7e 100644
--- a/Library/Formula/htmldoc.rb
+++ b/Library/Formula/htmldoc.rb
@@ -4,6 +4,7 @@ class Htmldoc < Formula
   homepage "http://www.msweet.org/projects.php?Z1"
   url "http://www.msweet.org/files/project1/htmldoc-1.8.28-source.tar.bz2"
   sha1 "44ac8b5f116383e9ae44bb1fd7d8caf6e3edf9c2"
+  revision 1
 
   depends_on "libpng"
   depends_on "jpeg"
diff --git a/Library/Formula/icoutils.rb b/Library/Formula/icoutils.rb
index 48e554157..fa5ce547b 100644
--- a/Library/Formula/icoutils.rb
+++ b/Library/Formula/icoutils.rb
@@ -4,8 +4,9 @@ class Icoutils < Formula
   homepage 'http://www.nongnu.org/icoutils/'
   url 'http://savannah.nongnu.org/download/icoutils/icoutils-0.31.0.tar.bz2'
   sha1 '2712acd33c611588793562310077efd2ff35dca5'
+  revision 1
 
-  depends_on :libpng
+  depends_on 'libpng'
 
   def install
     system "./configure", "--disable-dependency-tracking",
diff --git a/Library/Formula/imageworsener.rb b/Library/Formula/imageworsener.rb
index 213a42819..ae51ae2c6 100644
--- a/Library/Formula/imageworsener.rb
+++ b/Library/Formula/imageworsener.rb
@@ -4,8 +4,9 @@ class Imageworsener < Formula
   homepage 'http://entropymine.com/imageworsener/'
   url 'http://entropymine.com/imageworsener/imageworsener-1.1.0.tar.gz'
   sha1 'ce552890396efc03f0e7860b74cd635e5185858d'
+  revision 1
 
-  depends_on :libpng => :recommended
+  depends_on 'libpng' => :recommended
 
   def install
     system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}"
diff --git a/Library/Formula/imlib2.rb b/Library/Formula/imlib2.rb
index 17df37c5c..c244f9638 100644
--- a/Library/Formula/imlib2.rb
+++ b/Library/Formula/imlib2.rb
@@ -4,11 +4,12 @@ class Imlib2 < Formula
   homepage 'http://sourceforge.net/projects/enlightenment/files/'
   url 'https://downloads.sourceforge.net/project/enlightenment/imlib2-src/1.4.6/imlib2-1.4.6.tar.bz2'
   sha1 '20e111d822074593e8d657ecf8aafe504e9e2967'
+  revision 1
 
   option "without-x", "Build without X support"
 
-  depends_on :freetype
-  depends_on :libpng => :recommended
+  depends_on 'freetype'
+  depends_on 'libpng' => :recommended
   depends_on :x11 if MacOS::X11.installed? or build.with? "x"
   depends_on 'pkg-config' => :build
   depends_on 'jpeg' => :recommended
diff --git a/Library/Formula/iulib.rb b/Library/Formula/iulib.rb
index 437fb95a9..65b8488cd 100644
--- a/Library/Formula/iulib.rb
+++ b/Library/Formula/iulib.rb
@@ -4,11 +4,12 @@ class Iulib < Formula
   homepage 'http://code.google.com/p/iulib/'
   url 'https://iulib.googlecode.com/files/iulib-0.4.tgz'
   sha1 '96a006f806a650886fdd59b1239f6e56d1a864c1'
+  revision 1
 
   depends_on :autoconf
   depends_on :automake
   depends_on :libtool
-  depends_on :libpng
+  depends_on "libpng"
   depends_on "jpeg"
   depends_on "libtiff"
 
diff --git a/Library/Formula/lensfun.rb b/Library/Formula/lensfun.rb
index 7cf0db8cd..8279ae5d7 100644
--- a/Library/Formula/lensfun.rb
+++ b/Library/Formula/lensfun.rb
@@ -5,10 +5,11 @@ class Lensfun < Formula
   head 'svn://svn.berlios.de/lensfun/trunk'
   url 'https://downloads.sourceforge.net/project/lensfun.berlios/lensfun-0.2.8.tar.bz2'
   sha1 '0e85eb7692620668d27e2303687492ad68c90eb4'
+  revision 1
 
   depends_on 'doxygen' => :optional
   depends_on 'glib'
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'pkg-config' => :build
 
   def install
diff --git a/Library/Formula/leptonica.rb b/Library/Formula/leptonica.rb
index ec4149339..a046dd833 100644
--- a/Library/Formula/leptonica.rb
+++ b/Library/Formula/leptonica.rb
@@ -4,8 +4,9 @@ class Leptonica < Formula
   homepage 'http://www.leptonica.org/'
   url 'http://www.leptonica.org/source/leptonica-1.69.tar.gz'
   sha1 '91199f99d2e78b15b76ffa6fc4e86ee458a330e8'
+  revision 1
 
-  depends_on :libpng => :recommended
+  depends_on 'libpng' => :recommended
   depends_on 'jpeg' => :recommended
   depends_on 'libtiff' => :optional
 
diff --git a/Library/Formula/libgaiagraphics.rb b/Library/Formula/libgaiagraphics.rb
index 6f36081b3..2fddf73a8 100644
--- a/Library/Formula/libgaiagraphics.rb
+++ b/Library/Formula/libgaiagraphics.rb
@@ -2,9 +2,9 @@ require 'formula'
 
 class Libgaiagraphics < Formula
   homepage 'https://www.gaia-gis.it/fossil/libgaiagraphics/index'
-
   url 'http://www.gaia-gis.it/gaia-sins/gaiagraphics-sources/libgaiagraphics-0.4b.tar.gz'
   sha1 'd045ad6d22db9e67ba410a62b9398c337786fe53'
+  revision 1
 
   devel do
     url 'http://www.gaia-gis.it/gaia-sins/gaiagraphics-sources/libgaiagraphics-0.5.tar.gz'
@@ -15,7 +15,7 @@ class Libgaiagraphics < Formula
   depends_on 'libgeotiff'
   depends_on 'jpeg'
   depends_on 'cairo'
-  depends_on :libpng
+  depends_on 'libpng'
 
   def install
     system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}"
diff --git a/Library/Formula/libharu.rb b/Library/Formula/libharu.rb
index 11beaacc9..e96335fb3 100644
--- a/Library/Formula/libharu.rb
+++ b/Library/Formula/libharu.rb
@@ -4,8 +4,9 @@ class Libharu < Formula
   homepage 'http://www.libharu.org'
   url 'http://libharu.org/files/libharu-2.2.1.tar.bz2'
   sha1 'bfea7d9df3fb6a112340d0d54731f62f53b26d2f'
+  revision 1
 
-  depends_on :libpng
+  depends_on 'libpng'
 
   # Fixes compilation against LibPNG 1.5. Can be removed on next release.
   # Based on a commit in the LibHaru repository which does not apply cleanly
diff --git a/Library/Formula/libicns.rb b/Library/Formula/libicns.rb
index 2436b8784..8b09d3f8e 100644
--- a/Library/Formula/libicns.rb
+++ b/Library/Formula/libicns.rb
@@ -4,11 +4,12 @@ class Libicns < Formula
   homepage 'http://icns.sourceforge.net/'
   url 'https://downloads.sourceforge.net/project/icns/libicns-0.8.1.tar.gz'
   sha256 '335f10782fc79855cf02beac4926c4bf9f800a742445afbbf7729dab384555c2'
+  revision 1
 
   option :universal
 
   depends_on 'jasper'
-  depends_on :libpng
+  depends_on 'libpng'
 
   def install
     # Fix for libpng 1.5
diff --git a/Library/Formula/libkate.rb b/Library/Formula/libkate.rb
index 1ac75c234..11be1c1ce 100644
--- a/Library/Formula/libkate.rb
+++ b/Library/Formula/libkate.rb
@@ -4,8 +4,9 @@ class Libkate < Formula
   homepage 'http://code.google.com/p/libkate/'
   url 'https://libkate.googlecode.com/files/libkate-0.4.1.tar.gz'
   sha1 '87fd8baaddb7120fb4d20b0a0437e44ea8b6c9d8'
+  revision 1
 
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'libogg' => :recommended
 
   fails_with :gcc do
diff --git a/Library/Formula/libming.rb b/Library/Formula/libming.rb
index 87ab10775..aeb7335ac 100644
--- a/Library/Formula/libming.rb
+++ b/Library/Formula/libming.rb
@@ -4,12 +4,13 @@ class Libming < Formula
   homepage 'http://www.libming.org'
   url 'https://downloads.sourceforge.net/project/ming/Releases/ming-0.4.4.tar.bz2'
   sha1 'e803b3b94a00a361e3415105f26112cf6f7bac81'
+  revision 1
 
   option 'perl', 'Build the perl extension'
   option 'php', 'Build the php extension'
 
-  depends_on :libpng
-  depends_on :freetype
+  depends_on 'libpng'
+  depends_on 'freetype'
   depends_on :python => :optional
   depends_on 'giflib' => :optional
 
diff --git a/Library/Formula/libpano.rb b/Library/Formula/libpano.rb
index ce4041386..be60f5926 100644
--- a/Library/Formula/libpano.rb
+++ b/Library/Formula/libpano.rb
@@ -5,8 +5,9 @@ class Libpano < Formula
   url 'https://downloads.sourceforge.net/project/panotools/libpano13/libpano13-2.9.18/libpano13-2.9.18.tar.gz'
   version '13-2.9.18'
   sha1 '23849bdbdfc9176a2b53d157e58bd24aa0e7276e'
+  revision 1
 
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'jpeg'
   depends_on 'libtiff'
 
diff --git a/Library/Formula/librasterlite.rb b/Library/Formula/librasterlite.rb
index d69772076..aa2fdda4d 100644
--- a/Library/Formula/librasterlite.rb
+++ b/Library/Formula/librasterlite.rb
@@ -4,9 +4,10 @@ class Librasterlite < Formula
   homepage 'https://www.gaia-gis.it/fossil/librasterlite/index'
   url 'http://www.gaia-gis.it/gaia-sins/librasterlite-sources/librasterlite-1.1g.tar.gz'
   sha1 '87f0abab90600db64a7d468343163e760769f0c7'
+  revision 1
 
   depends_on "pkg-config" => :build
-  depends_on :libpng
+  depends_on "libpng"
   depends_on "libgeotiff"
   depends_on "libspatialite"
 
diff --git a/Library/Formula/libsvg-cairo.rb b/Library/Formula/libsvg-cairo.rb
index 70b213693..cc995aa76 100644
--- a/Library/Formula/libsvg-cairo.rb
+++ b/Library/Formula/libsvg-cairo.rb
@@ -4,10 +4,11 @@ class LibsvgCairo < Formula
   homepage 'http://cairographics.org/'
   url 'http://cairographics.org/snapshots/libsvg-cairo-0.1.6.tar.gz'
   sha1 'c7bf131b59e8c00a80ce07c6f2f90f25a7c61f81'
+  revision 1
 
   depends_on 'pkg-config' => :build
   depends_on 'libsvg'
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'cairo'
 
   def install
diff --git a/Library/Formula/libsvg.rb b/Library/Formula/libsvg.rb
index 5ca871cd2..24b443ade 100644
--- a/Library/Formula/libsvg.rb
+++ b/Library/Formula/libsvg.rb
@@ -4,8 +4,9 @@ class Libsvg < Formula
   homepage 'http://cairographics.org/'
   url 'http://cairographics.org/snapshots/libsvg-0.1.4.tar.gz'
   sha1 '2198e65833eed905d93be70f3db4f0d32a2eaf57'
+  revision 1
 
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'pkg-config' => :build
   depends_on 'jpeg'
 
diff --git a/Library/Formula/libwmf.rb b/Library/Formula/libwmf.rb
index f4139be21..e457c4e18 100644
--- a/Library/Formula/libwmf.rb
+++ b/Library/Formula/libwmf.rb
@@ -4,11 +4,12 @@ class Libwmf < Formula
   homepage 'http://wvware.sourceforge.net/libwmf.html'
   url 'https://downloads.sourceforge.net/project/wvware/libwmf/0.2.8.4/libwmf-0.2.8.4.tar.gz'
   sha1 '822ab3bd0f5e8f39ad732f2774a8e9f18fc91e89'
+  revision 1
 
   depends_on 'pkg-config' => :build
   depends_on 'gd'
-  depends_on :freetype
-  depends_on :libpng
+  depends_on 'freetype'
+  depends_on 'libpng'
 
   def install
     system "./configure", "--disable-debug", "--disable-dependency-tracking",
diff --git a/Library/Formula/logstalgia.rb b/Library/Formula/logstalgia.rb
index c66ce55a5..602f9e37c 100644
--- a/Library/Formula/logstalgia.rb
+++ b/Library/Formula/logstalgia.rb
@@ -4,6 +4,7 @@ class Logstalgia < Formula
   homepage 'http://code.google.com/p/logstalgia/'
   url 'https://logstalgia.googlecode.com/files/logstalgia-1.0.3.tar.gz'
   sha1 '9d5db0f3598291b3a7a10b8f4bff9f6164eccadc'
+  revision 1
 
   head do
     url 'https://github.com/acaudwell/Logstalgia.git'
@@ -14,10 +15,10 @@ class Logstalgia < Formula
   end
 
   depends_on 'sdl'
-  depends_on :freetype
+  depends_on 'freetype'
   depends_on 'pkg-config' => :build
   depends_on 'ftgl'
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'jpeg'
   depends_on 'sdl_image'
   depends_on 'pcre'
diff --git a/Library/Formula/mapnik.rb b/Library/Formula/mapnik.rb
index 9ea511b78..1b80d73eb 100644
--- a/Library/Formula/mapnik.rb
+++ b/Library/Formula/mapnik.rb
@@ -4,6 +4,7 @@ class Mapnik < Formula
   homepage 'http://www.mapnik.org/'
   url 'http://mapnik.s3.amazonaws.com/dist/v2.2.0/mapnik-v2.2.0.tar.bz2'
   sha1 'e493ad87ca83471374a3b080f760df4b25f7060d'
+  revision 1
 
   # can be removed at Mapnik > 2.2.0
   # https://github.com/mapnik/mapnik/issues/1973
diff --git a/Library/Formula/mapserver.rb b/Library/Formula/mapserver.rb
index 0f3ea0a8d..12017d3f9 100644
--- a/Library/Formula/mapserver.rb
+++ b/Library/Formula/mapserver.rb
@@ -4,6 +4,7 @@ class Mapserver < Formula
   homepage 'http://mapserver.org/'
   url 'http://download.osgeo.org/mapserver/mapserver-6.2.1.tar.gz'
   sha1 'bbe4234a4dcc179812c6598f68fe59a3dae63e44'
+  revision 1
 
   option "with-fastcgi", "Build with fastcgi support"
   option "with-geos", "Build support for GEOS spatial operations"
@@ -12,8 +13,8 @@ class Mapserver < Formula
 
   env :userpaths
 
-  depends_on :freetype
-  depends_on :libpng
+  depends_on 'freetype'
+  depends_on 'libpng'
   depends_on 'swig' => :build
   depends_on 'giflib'
   depends_on 'gd' => %w{with-freetype}
diff --git a/Library/Formula/mldonkey.rb b/Library/Formula/mldonkey.rb
index 5ba782281..57f91c1be 100644
--- a/Library/Formula/mldonkey.rb
+++ b/Library/Formula/mldonkey.rb
@@ -4,13 +4,14 @@ class Mldonkey < Formula
   homepage 'http://mldonkey.sourceforge.net/Main_Page'
   url 'https://downloads.sourceforge.net/project/mldonkey/mldonkey/3.1.3/mldonkey-3.1.3.tar.bz2'
   sha1 '424386f277e84df55a2cbab213fae60787e42c8b'
+  revision 1
 
   option "with-x", "Build mldonkey with X11 support"
 
   depends_on 'pkg-config' => :build
   depends_on 'objective-caml'
   depends_on 'gd'
-  depends_on :libpng
+  depends_on 'libpng'
 
   if build.with? "x"
     depends_on 'librsvg'
diff --git a/Library/Formula/mupdf.rb b/Library/Formula/mupdf.rb
index 9834367f4..ba5c823f7 100644
--- a/Library/Formula/mupdf.rb
+++ b/Library/Formula/mupdf.rb
@@ -4,13 +4,16 @@ class Mupdf < Formula
   homepage 'http://mupdf.com'
   url 'https://mupdf.googlecode.com/files/mupdf-1.3-source.tar.gz'
   sha1 '082325aceb5565b07b82c2b6cc52a97533e03cf9'
+  revision 1
 
   depends_on :macos => :snow_leopard
 
   depends_on 'jpeg'
   depends_on 'openjpeg'
   depends_on 'jbig2dec'
-  depends_on :x11 # libpng, freetype and the X11 libs
+  depends_on 'libpng'
+  depends_on 'freetype'
+  depends_on :x11
 
   def install
     openjpeg = Formula["openjpeg"]
diff --git a/Library/Formula/nagios.rb b/Library/Formula/nagios.rb
index 34f12d573..11bf779fd 100644
--- a/Library/Formula/nagios.rb
+++ b/Library/Formula/nagios.rb
@@ -4,10 +4,11 @@ class Nagios < Formula
   homepage 'http://www.nagios.org/'
   url 'https://downloads.sourceforge.net/project/nagios/nagios-3.x/nagios-3.5.1/nagios-3.5.1.tar.gz'
   sha1 '486fd6c75db47000b96d6eebb1654c30d5e9bc72'
+  revision 1
 
   depends_on 'gd'
   depends_on 'nagios-plugins'
-  depends_on :libpng
+  depends_on 'libpng'
 
   def nagios_sbin;  prefix+'cgi-bin';       end
   def nagios_etc;   etc+'nagios';           end
diff --git a/Library/Formula/netpbm.rb b/Library/Formula/netpbm.rb
index 033ba8ec6..0c9e0f62d 100644
--- a/Library/Formula/netpbm.rb
+++ b/Library/Formula/netpbm.rb
@@ -2,16 +2,17 @@ require 'formula'
 
 class Netpbm < Formula
   homepage 'http://netpbm.sourceforge.net'
-  url 'svn+http://svn.code.sf.net/p/netpbm/code/advanced/', :revision => 1809
-  version '10.60.05'
   # Maintainers: Look at http://netpbm.svn.sourceforge.net/viewvc/netpbm/
   # for versions and matching revisions
+  url 'svn+http://svn.code.sf.net/p/netpbm/code/advanced/', :revision => 1809
+  version '10.60.05'
+  revision 1
 
   head 'http://svn.code.sf.net/p/netpbm/code/trunk'
 
   depends_on "libtiff"
   depends_on "jasper"
-  depends_on :libpng
+  depends_on "libpng"
 
   def install
     system "cp", "config.mk.in", "config.mk"
diff --git a/Library/Formula/openjpeg.rb b/Library/Formula/openjpeg.rb
index ac4772559..cbd6bbb55 100644
--- a/Library/Formula/openjpeg.rb
+++ b/Library/Formula/openjpeg.rb
@@ -4,12 +4,13 @@ class Openjpeg < Formula
   homepage 'http://www.openjpeg.org/'
   url 'https://openjpeg.googlecode.com/files/openjpeg-1.5.1.tar.gz'
   sha1 '1b0b74d1af4c297fd82806a9325bb544caf9bb8b'
+  revision 1
 
   head 'http://openjpeg.googlecode.com/svn/trunk/'
 
   depends_on 'little-cms2'
   depends_on 'libtiff'
-  depends_on :libpng
+  depends_on 'libpng'
 
   def install
     system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}"
diff --git a/Library/Formula/openslide.rb b/Library/Formula/openslide.rb
index 0d07066f5..ac047fbf5 100644
--- a/Library/Formula/openslide.rb
+++ b/Library/Formula/openslide.rb
@@ -4,9 +4,10 @@ class Openslide < Formula
   homepage 'http://openslide.org/'
   url 'http://download.openslide.org/releases/openslide/openslide-3.3.3.tar.gz'
   sha1 '2315f0daa5d963e6ba9f1e67517cee44f9deabe5'
+  revision 1
 
   depends_on 'pkg-config' => :build
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'jpeg'
   depends_on 'libxml2'
   depends_on 'libtiff'
diff --git a/Library/Formula/pixie.rb b/Library/Formula/pixie.rb
index 959f249af..94d63b7e9 100644
--- a/Library/Formula/pixie.rb
+++ b/Library/Formula/pixie.rb
@@ -4,11 +4,12 @@ class Pixie < Formula
   homepage 'http://www.renderpixie.com/'
   url 'https://downloads.sourceforge.net/project/pixie/pixie/Pixie%202.2.6/Pixie-src-2.2.6.tgz'
   sha1 '651d3a76460f19cbbedb7d3d26ee9160182964d3'
+  revision 1
 
   depends_on 'libtiff'
   depends_on 'fltk'
   depends_on 'openexr'
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on :x11
 
   def install
diff --git a/Library/Formula/plotutils.rb b/Library/Formula/plotutils.rb
index 5b6d42e39..216282f2f 100644
--- a/Library/Formula/plotutils.rb
+++ b/Library/Formula/plotutils.rb
@@ -5,8 +5,9 @@ class Plotutils < Formula
   url 'http://ftpmirror.gnu.org/plotutils/plotutils-2.6.tar.gz'
   mirror 'http://ftp.gnu.org/gnu/plotutils/plotutils-2.6.tar.gz'
   sha1 '7921301d9dfe8991e3df2829bd733df6b2a70838'
+  revision 1
 
-  depends_on :libpng
+  depends_on 'libpng'
 
   def install
     # Fix usage of libpng to be 1.5 compatible
diff --git a/Library/Formula/png++.rb b/Library/Formula/png++.rb
index ff95f09b4..61fdaee6d 100644
--- a/Library/Formula/png++.rb
+++ b/Library/Formula/png++.rb
@@ -4,8 +4,9 @@ class Pngxx < Formula
   homepage 'http://www.nongnu.org/pngpp/'
   url 'http://download.savannah.nongnu.org/releases/pngpp/png++-0.2.5.tar.gz'
   sha1 'bfe39c414a8c5c18dbaaf96fea22ce12a6887576'
+  revision 1
 
-  depends_on :libpng
+  depends_on 'libpng'
 
   def install
     system "make", "PREFIX=#{prefix}", "install"
diff --git a/Library/Formula/png2ico.rb b/Library/Formula/png2ico.rb
index b20503e77..2f8d66dcf 100644
--- a/Library/Formula/png2ico.rb
+++ b/Library/Formula/png2ico.rb
@@ -4,8 +4,9 @@ class Png2ico < Formula
   homepage 'http://www.winterdrache.de/freeware/png2ico/'
   url 'http://www.winterdrache.de/freeware/png2ico/data/png2ico-src-2002-12-08.tar.gz'
   sha1 '955004bee9a20f12b225aa01895762cbbafaeb28'
+  revision 1
 
-  depends_on :libpng
+  depends_on 'libpng'
 
   # Fix build with recent clang
   patch :DATA
diff --git a/Library/Formula/pngnq.rb b/Library/Formula/pngnq.rb
index d0be96660..60a6bbd07 100644
--- a/Library/Formula/pngnq.rb
+++ b/Library/Formula/pngnq.rb
@@ -4,9 +4,10 @@ class Pngnq < Formula
   homepage 'http://pngnq.sourceforge.net/'
   url 'https://downloads.sourceforge.net/project/pngnq/pngnq/1.1/pngnq-1.1.tar.gz'
   sha1 '6a43dc046171eee56ac2d91cebb93aecde24d26a'
+  revision 1
 
   depends_on 'pkg-config' => :build
-  depends_on :libpng
+  depends_on 'libpng'
 
   # Fixes compilation on OSX Lion
   # png.h on Lion does not, in fact, include zlib.h
diff --git a/Library/Formula/pngquant.rb b/Library/Formula/pngquant.rb
index 813fa3c3a..c14fd0ec0 100644
--- a/Library/Formula/pngquant.rb
+++ b/Library/Formula/pngquant.rb
@@ -4,10 +4,11 @@ class Pngquant < Formula
   homepage 'http://pngquant.org/'
   url 'https://github.com/pornel/pngquant/archive/2.0.2.tar.gz'
   sha1 'b7d3971d73a628ca5743331cf09bbe2e5574be73'
+  revision 1
 
   head 'https://github.com/pornel/pngquant.git'
 
-  depends_on :libpng
+  depends_on 'libpng'
 
   def install
     ENV.append_to_cflags "-DNDEBUG" # Turn off debug
diff --git a/Library/Formula/podofo.rb b/Library/Formula/podofo.rb
index 9de1e8b0e..b66746a3c 100644
--- a/Library/Formula/podofo.rb
+++ b/Library/Formula/podofo.rb
@@ -4,11 +4,12 @@ class Podofo < Formula
   homepage 'http://podofo.sourceforge.net'
   url 'https://downloads.sourceforge.net/podofo/podofo-0.9.2.tar.gz'
   sha1 '8a6e27e17e0ed9f12e1a999cff66eae8eb97a4bc'
+  revision 1
 
   depends_on 'cmake' => :build
-  depends_on :libpng
-  depends_on :freetype
-  depends_on :fontconfig
+  depends_on 'libpng'
+  depends_on 'freetype'
+  depends_on 'fontconfig'
   depends_on 'jpeg'
   depends_on 'libtiff'
 
diff --git a/Library/Formula/poppler.rb b/Library/Formula/poppler.rb
index e2a3152f1..898427a8a 100644
--- a/Library/Formula/poppler.rb
+++ b/Library/Formula/poppler.rb
@@ -12,6 +12,7 @@ class Poppler < Formula
 
   depends_on 'pkg-config' => :build
 
+  depends_on 'libpng'
   depends_on 'fontconfig'
   depends_on 'openjpeg'
 
diff --git a/Library/Formula/povray.rb b/Library/Formula/povray.rb
index 80b07efb8..a39588a5e 100644
--- a/Library/Formula/povray.rb
+++ b/Library/Formula/povray.rb
@@ -4,11 +4,12 @@ class Povray < Formula
   homepage 'http://www.povray.org/'
   url 'https://github.com/POV-Ray/povray/archive/v3.7.0.0.tar.gz'
   sha1 '1d160d45e69d096e4c22f3b034dcc9ee94d22208'
+  revision 1
 
   depends_on :macos => :lion
   depends_on :autoconf
   depends_on :automake
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'boost'
   depends_on 'jpeg'
   depends_on 'libtiff'
diff --git a/Library/Formula/pyxplot.rb b/Library/Formula/pyxplot.rb
index ceadd9bb3..bb01b1eaa 100644
--- a/Library/Formula/pyxplot.rb
+++ b/Library/Formula/pyxplot.rb
@@ -4,6 +4,7 @@ class Pyxplot < Formula
   homepage 'http://pyxplot.org.uk/'
   url 'http://pyxplot.org.uk/src/pyxplot_0.9.2.tar.gz'
   sha1 '5f09399bd00a4ae94a07ac186cf0e8e7761de625'
+  revision 1
 
   depends_on :x11
   depends_on :tex
diff --git a/Library/Formula/qrencode.rb b/Library/Formula/qrencode.rb
index 97f96c3cf..007e673c8 100644
--- a/Library/Formula/qrencode.rb
+++ b/Library/Formula/qrencode.rb
@@ -4,9 +4,10 @@ class Qrencode < Formula
   homepage 'http://fukuchi.org/works/qrencode/index.html.en'
   url 'http://fukuchi.org/works/qrencode/qrencode-3.4.3.tar.bz2'
   sha1 'a5056cf2fdc699ecf1d3c0cbea7b50993b0bf54e'
+  revision 1
 
   depends_on 'pkg-config' => :build
-  depends_on :libpng
+  depends_on 'libpng'
 
   def install
     system "./configure", "--disable-dependency-tracking",
diff --git a/Library/Formula/scale2x.rb b/Library/Formula/scale2x.rb
index 83cf265ae..f292ff728 100644
--- a/Library/Formula/scale2x.rb
+++ b/Library/Formula/scale2x.rb
@@ -4,8 +4,9 @@ class Scale2x < Formula
   homepage 'http://scale2x.sourceforge.net'
   url 'https://downloads.sourceforge.net/project/scale2x/scale2x/2.4/scale2x-2.4.tar.gz'
   sha1 '30bbd674dcdf134a58b34e75f87ed05bd716d484'
+  revision 1
 
-  depends_on :libpng
+  depends_on 'libpng'
 
   def install
     # This function was renamed in current versions of libpng.
diff --git a/Library/Formula/sdl2_image.rb b/Library/Formula/sdl2_image.rb
index d3001c67d..d40cb4364 100644
--- a/Library/Formula/sdl2_image.rb
+++ b/Library/Formula/sdl2_image.rb
@@ -4,6 +4,7 @@ class Sdl2Image < Formula
   homepage 'http://www.libsdl.org/projects/SDL_image/'
   url 'http://www.libsdl.org/projects/SDL_image/release/SDL2_image-2.0.0.tar.gz'
   sha1 '20b1b0db9dd540d6d5e40c7da8a39c6a81248865'
+  revision 1
 
   depends_on 'pkg-config' => :build
   depends_on 'sdl2'
diff --git a/Library/Formula/sdl_image.rb b/Library/Formula/sdl_image.rb
index a8e5e2506..e35334831 100644
--- a/Library/Formula/sdl_image.rb
+++ b/Library/Formula/sdl_image.rb
@@ -4,6 +4,7 @@ class SdlImage < Formula
   homepage 'http://www.libsdl.org/projects/SDL_image'
   url 'http://www.libsdl.org/projects/SDL_image/release/SDL_image-1.2.12.tar.gz'
   sha1 '5e3e393d4e366638048bbb10d6a269ea3f4e4cf2'
+  revision 1
 
   depends_on 'pkg-config' => :build
   depends_on 'sdl'
diff --git a/Library/Formula/sox.rb b/Library/Formula/sox.rb
index 858f1d493..4a8bb4885 100644
--- a/Library/Formula/sox.rb
+++ b/Library/Formula/sox.rb
@@ -4,9 +4,10 @@ class Sox < Formula
   homepage 'http://sox.sourceforge.net/'
   url 'https://downloads.sourceforge.net/project/sox/sox/14.4.1/sox-14.4.1.tar.gz'
   sha1 '71f05afc51e3d9b03376b2f98fd452d3a274d595'
+  revision 1
 
   depends_on 'pkg-config' => :build
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'mad'
   depends_on 'opencore-amr' => :optional
   depends_on 'libvorbis' => :optional
diff --git a/Library/Formula/swfmill.rb b/Library/Formula/swfmill.rb
index e638becd3..36818291b 100644
--- a/Library/Formula/swfmill.rb
+++ b/Library/Formula/swfmill.rb
@@ -4,10 +4,11 @@ class Swfmill < Formula
   homepage 'http://swfmill.org'
   url 'http://swfmill.org/releases/swfmill-0.3.3.tar.gz'
   sha1 '7aa2c674e20f5649985b6dde3838393c5efefb6e'
+  revision 1
 
   depends_on 'pkg-config' => :build
-  depends_on :freetype
-  depends_on :libpng
+  depends_on 'freetype'
+  depends_on 'libpng'
 
   def install
     # Use inreplace instead of a patch due to newlines
diff --git a/Library/Formula/synfig.rb b/Library/Formula/synfig.rb
index c4cb28e8b..417b5ebdf 100644
--- a/Library/Formula/synfig.rb
+++ b/Library/Formula/synfig.rb
@@ -4,6 +4,7 @@ class Synfig < Formula
   homepage 'http://synfig.org'
   url 'https://downloads.sourceforge.net/project/synfig/releases/0.64.1/source/synfig-0.64.1.tar.gz'
   sha1 '19fe81f144100c3f5e14a1b88b26a9b659fee3b8'
+  revision 1
 
   head 'git://synfig.git.sourceforge.net/gitroot/synfig/synfig'
 
@@ -13,8 +14,8 @@ class Synfig < Formula
   depends_on 'libsigc++'
   depends_on 'libxml++'
   depends_on 'imagemagick'
-  depends_on :libpng
-  depends_on :freetype
+  depends_on 'libpng'
+  depends_on 'freetype'
   depends_on 'cairo'
   depends_on 'pango'
   depends_on 'boost'
diff --git a/Library/Formula/tiff2png.rb b/Library/Formula/tiff2png.rb
index a7c34856a..5658ed82f 100644
--- a/Library/Formula/tiff2png.rb
+++ b/Library/Formula/tiff2png.rb
@@ -4,9 +4,10 @@ class Tiff2png < Formula
   homepage 'http://www.libpng.org/pub/png/apps/tiff2png.html'
   url 'ftp://ftp.simplesystems.org/pub/libpng/png/applications/tiff2png/tiff2png-0.91.tar.gz'
   sha1 '3a23abaaadbed8f3d13b88241257fe2078eb61fd'
+  revision 1
 
   depends_on 'libtiff'
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'jpeg'
 
   # libpng 1.5 no longer #includes zlib.h
diff --git a/Library/Formula/ufraw.rb b/Library/Formula/ufraw.rb
index 03d6a612a..cc7125807 100644
--- a/Library/Formula/ufraw.rb
+++ b/Library/Formula/ufraw.rb
@@ -4,9 +4,10 @@ class Ufraw < Formula
   homepage 'http://ufraw.sourceforge.net'
   url 'https://downloads.sourceforge.net/project/ufraw/ufraw/ufraw-0.19.2/ufraw-0.19.2.tar.gz'
   sha1 '11a607e874eb16453a8f7964e4946a29d18b071d'
+  revision 1
 
   depends_on 'pkg-config' => :build
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'dcraw'
   depends_on 'glib'
   depends_on 'jpeg'
diff --git a/Library/Formula/vice.rb b/Library/Formula/vice.rb
index ba84087d5..8dea8a5cc 100644
--- a/Library/Formula/vice.rb
+++ b/Library/Formula/vice.rb
@@ -4,10 +4,11 @@ class Vice < Formula
   homepage 'http://vice-emu.sourceforge.net/'
   url 'http://www.zimmers.net/anonftp/pub/cbm/crossplatform/emulators/VICE/vice-2.4.tar.gz'
   sha1 '719aa96cc72e7578983fadea1a31c21898362bc7'
+  revision 1
 
   depends_on 'pkg-config' => :build
   depends_on 'jpeg'
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'giflib' => :optional
   depends_on 'lame' => :optional
 
diff --git a/Library/Formula/webalizer.rb b/Library/Formula/webalizer.rb
index 06505da96..ba114fabe 100644
--- a/Library/Formula/webalizer.rb
+++ b/Library/Formula/webalizer.rb
@@ -4,10 +4,11 @@ class Webalizer < Formula
   homepage 'http://www.mrunix.net/webalizer/'
   url 'ftp://ftp.mrunix.net/pub/webalizer/webalizer-2.23-05-src.tgz'
   sha1 'bc28ff28d9484c8e9793ec081c7cbfcb1f577351'
+  revision 1
 
   depends_on 'gd'
   depends_on 'berkeley-db'
-  depends_on :libpng
+  depends_on 'libpng'
 
   def install
     system "./configure", "--disable-debug",
diff --git a/Library/Formula/webp.rb b/Library/Formula/webp.rb
index b7a458d03..b9b3a54df 100644
--- a/Library/Formula/webp.rb
+++ b/Library/Formula/webp.rb
@@ -4,10 +4,11 @@ class Webp < Formula
   homepage 'http://code.google.com/speed/webp/'
   url 'https://webp.googlecode.com/files/libwebp-0.4.0.tar.gz'
   sha1 '326c4b6787a01e5e32a9b30bae76442d18d2d1b6'
+  revision 1
 
   option :universal
 
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'jpeg' => :recommended
 
   def install
diff --git a/Library/Formula/wv.rb b/Library/Formula/wv.rb
index fb219a967..6915fece1 100644
--- a/Library/Formula/wv.rb
+++ b/Library/Formula/wv.rb
@@ -4,12 +4,13 @@ class Wv < Formula
   homepage 'http://wvware.sourceforge.net/'
   url 'http://abisource.com/downloads/wv/1.2.5/wv-1.2.5.tar.gz'
   sha1 'a196a31ca1c4083436d9414b9bf4809c0fd7c33c'
+  revision 1
 
   depends_on 'pkg-config' => :build
   depends_on 'glib'
   depends_on 'libgsf'
   depends_on 'libwmf'
-  depends_on :libpng
+  depends_on 'libpng'
 
   def install
     ENV.libxml2
diff --git a/Library/Formula/xplanet.rb b/Library/Formula/xplanet.rb
index ac9c72390..129912320 100644
--- a/Library/Formula/xplanet.rb
+++ b/Library/Formula/xplanet.rb
@@ -4,6 +4,7 @@ class Xplanet < Formula
   homepage 'http://xplanet.sourceforge.net/'
   url 'https://downloads.sourceforge.net/project/xplanet/xplanet/1.3.0/xplanet-1.3.0.tar.gz'
   sha1 '7c5208b501b441a0184cbb334a5658d0309d7dac'
+  revision 1
 
   option "with-x", "Build for X11 instead of Aqua"
   option "with-all", "Build with default Xplanet configuration dependencies except JPL CSPICE (manual install)"
diff --git a/Library/Formula/zint.rb b/Library/Formula/zint.rb
index 1485e8f17..23080015f 100644
--- a/Library/Formula/zint.rb
+++ b/Library/Formula/zint.rb
@@ -4,13 +4,14 @@ class Zint < Formula
   homepage 'http://zint.github.io/'
   url 'https://github.com/downloads/zint/zint/zint-2.4.3.tar.gz'
   sha1 '300732d03c77ccf1031c485a20f09b51495ef5a3'
+  revision 1
 
   head 'git://zint.git.sourceforge.net/gitroot/zint/zint'
 
   option 'qt', 'Build the zint-qt GUI.'
 
   depends_on 'cmake' => :build
-  depends_on :libpng
+  depends_on 'libpng'
   depends_on 'qt' if build.include? 'qt'
 
   def install