diff --git a/pkgs/development/libraries/allegro/5-unstable.nix b/pkgs/development/libraries/allegro/5-unstable.nix
new file mode 100644
index 000000000000..a277129c0a92
--- /dev/null
+++ b/pkgs/development/libraries/allegro/5-unstable.nix
@@ -0,0 +1,57 @@
+
+x@{builderDefsPackage
+  , texinfo, libXext, xextproto, libX11, xproto, libXpm, libXt, libXcursor
+  , alsaLib, cmake, zlib, libpng, libvorbis, libXxf86dga, libXxf86misc
+  , xf86dgaproto, xf86miscproto, xf86vidmodeproto, libXxf86vm, openal, mesa
+  , kbproto, libjpeg, flac
+  , ...}:
+builderDefsPackage
+(a :
+let
+  helperArgNames = ["stdenv" "fetchurl" "builderDefsPackage"] ++
+    [];
+
+  buildInputs = map (n: builtins.getAttr n x)
+    (builtins.attrNames (builtins.removeAttrs x helperArgNames));
+  sourceInfo = rec {
+    baseName="allegro";
+    version = "5.1.8";
+    name="${baseName}-${version}";
+    project="alleg";
+    url="mirror://sourceforge/project/${project}/${baseName}/${version}/${name}.tar.gz";
+    hash="18fdppaqaf3g3rcqwhyvsmkzk3y14clz4l8cvmg4hvjgyf011f3i";
+  };
+in
+rec {
+  src = a.fetchurl {
+    url = sourceInfo.url;
+    sha256 = "180mhlhgxqh3ynazf9bssnd3riw77fazjw65yr64w0av53y0h1lz";
+  };
+
+  inherit (sourceInfo) name version;
+  inherit buildInputs;
+
+  /* doConfigure should be removed if not needed */
+  phaseNames = ["doCmake" "doMakeInstall"];
+
+  doCmake = a.fullDepEntry (''
+    export NIX_LDFLAGS="$NIX_LDFLAGS -lXext -lX11 -lXpm -lXcursor -lXxf86vm"
+    cmake -D CMAKE_INSTALL_PREFIX=$out -D CMAKE_SKIP_RPATH=ON .
+  '') ["minInit" "doUnpack" "addInputs"];
+
+  makeFlags = [
+  ];
+
+  meta = {
+    description = "A game programming library";
+    license = "free-noncopyleft"; # giftware
+    maintainers = with a.lib.maintainers;
+    [
+      raskin
+    ];
+    platforms = with a.lib.platforms;
+      linux;
+    inherit version;
+  };
+}) x
+
diff --git a/pkgs/development/libraries/allegro/5-unstable.upstream b/pkgs/development/libraries/allegro/5-unstable.upstream
new file mode 100644
index 000000000000..e07829c08cc4
--- /dev/null
+++ b/pkgs/development/libraries/allegro/5-unstable.upstream
@@ -0,0 +1,7 @@
+attribute_name allegro5
+url http://alleg.sourceforge.net/download.html
+version_link '/allegro-unstable/.*[.]tar[.].*/download$'
+SF_redirect
+do_overwrite () {
+  do_overwrite_just_version
+}
diff --git a/pkgs/development/libraries/allegro/5.nix b/pkgs/development/libraries/allegro/5.nix
index 60634dc7db8b..f03dd5b548c7 100644
--- a/pkgs/development/libraries/allegro/5.nix
+++ b/pkgs/development/libraries/allegro/5.nix
@@ -6,9 +6,9 @@ x@{builderDefsPackage
   , kbproto, libjpeg, flac
   , ...}:
 builderDefsPackage
-(a :  
-let 
-  helperArgNames = ["stdenv" "fetchurl" "builderDefsPackage"] ++ 
+(a :
+let
+  helperArgNames = ["stdenv" "fetchurl" "builderDefsPackage"] ++
     [];
 
   buildInputs = map (n: builtins.getAttr n x)
@@ -38,7 +38,7 @@ rec {
     export NIX_LDFLAGS="$NIX_LDFLAGS -lXext -lX11 -lXpm -lXcursor -lXxf86vm"
     cmake -D CMAKE_INSTALL_PREFIX=$out -D CMAKE_SKIP_RPATH=ON .
   '') ["minInit" "doUnpack" "addInputs"];
-      
+
   makeFlags = [
   ];
 
@@ -51,11 +51,7 @@ rec {
     ];
     platforms = with a.lib.platforms;
       linux;
-  };
-  passthru = {
-    updateInfo = {
-      downloadPage = "http://sourceforge.net/projects/alleg/files/";
-    };
+    inherit version;
   };
 }) x
 
diff --git a/pkgs/development/libraries/allegro/5.upstream b/pkgs/development/libraries/allegro/5.upstream
new file mode 100644
index 000000000000..9d139383fe3d
--- /dev/null
+++ b/pkgs/development/libraries/allegro/5.upstream
@@ -0,0 +1,7 @@
+attribute_name allegro5
+url http://alleg.sourceforge.net/download.html
+version_link '[.]tar[.].*/download$'
+SF_redirect
+do_overwrite () {
+  do_overwrite_just_version
+}
diff --git a/pkgs/development/libraries/allegro/default.nix b/pkgs/development/libraries/allegro/default.nix
index 75842bee9f8f..15bb6bf1d000 100644
--- a/pkgs/development/libraries/allegro/default.nix
+++ b/pkgs/development/libraries/allegro/default.nix
@@ -4,9 +4,9 @@ x@{builderDefsPackage
   , xf86dgaproto, xf86miscproto, xf86vidmodeproto, libXxf86vm, openal, mesa
   , ...}:
 builderDefsPackage
-(a :  
-let 
-  helperArgNames = ["stdenv" "fetchurl" "builderDefsPackage"] ++ 
+(a :
+let
+  helperArgNames = ["stdenv" "fetchurl" "builderDefsPackage"] ++
     [];
 
   buildInputs = map (n: builtins.getAttr n x)
@@ -36,7 +36,7 @@ rec {
     export NIX_LDFLAGS="$NIX_LDFLAGS -lXext -lX11 -lXpm -lXcursor -lXxf86vm"
     cmake -D CMAKE_INSTALL_PREFIX=$out -D CMAKE_SKIP_RPATH=ON .
   '') ["minInit" "doUnpack" "addInputs"];
-      
+
   makeFlags = [
   ];
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index eb2411c0686c..63528ff9852d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4204,6 +4204,8 @@ let
 
   allegro = callPackage ../development/libraries/allegro {};
   allegro5 = callPackage ../development/libraries/allegro/5.nix {};
+  allegro5unstable = callPackage
+    ../development/libraries/allegro/5-unstable.nix {};
 
   amrnb = callPackage ../development/libraries/amrnb { };