diff --git a/pkgs/applications/display-managers/sddm/default.nix b/pkgs/applications/display-managers/sddm/default.nix
index 5e583049190..c9fd4f9c4ab 100644
--- a/pkgs/applications/display-managers/sddm/default.nix
+++ b/pkgs/applications/display-managers/sddm/default.nix
@@ -62,5 +62,6 @@ in mkDerivation rec {
     homepage    = https://github.com/sddm/sddm;
     maintainers = with maintainers; [ abbradar ttuegel ];
     platforms   = platforms.linux;
+    license     = licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/applications/display-managers/slim/default.nix b/pkgs/applications/display-managers/slim/default.nix
index 12e3dad9c79..e504c09e43e 100644
--- a/pkgs/applications/display-managers/slim/default.nix
+++ b/pkgs/applications/display-managers/slim/default.nix
@@ -50,5 +50,6 @@ stdenv.mkDerivation rec {
   meta = {
     homepage = https://sourceforge.net/projects/slim.berlios/; # berlios shut down; I found no replacement yet
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/applications/editors/nedit/default.nix b/pkgs/applications/editors/nedit/default.nix
index 39d96775ebc..6fff6df8cdd 100644
--- a/pkgs/applications/editors/nedit/default.nix
+++ b/pkgs/applications/editors/nedit/default.nix
@@ -28,5 +28,6 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     homepage = https://sourceforge.net/projects/nedit;
     platforms = with platforms; linux ++ darwin;
+    license = licenses.gpl2;
   };
 }
diff --git a/pkgs/applications/graphics/dosage/default.nix b/pkgs/applications/graphics/dosage/default.nix
index 69d09cd429c..d45d6c3a62e 100644
--- a/pkgs/applications/graphics/dosage/default.nix
+++ b/pkgs/applications/graphics/dosage/default.nix
@@ -1,4 +1,4 @@
-{ pythonPackages, fetchFromGitHub }:
+{ stdenv, pythonPackages, fetchFromGitHub }:
 
 pythonPackages.buildPythonApplication rec {
   pname = "dosage";
@@ -23,5 +23,6 @@ pythonPackages.buildPythonApplication rec {
   meta = {
     description = "A comic strip downloader and archiver";
     homepage = https://dosage.rocks/;
+    license = stdenv.lib.licenses.mit;
   };
 }
diff --git a/pkgs/applications/graphics/jbrout/default.nix b/pkgs/applications/graphics/jbrout/default.nix
index f120f8b13d4..9c81fe32b51 100644
--- a/pkgs/applications/graphics/jbrout/default.nix
+++ b/pkgs/applications/graphics/jbrout/default.nix
@@ -37,5 +37,6 @@ in pythonPackages.buildPythonApplication rec {
     homepage = http://manatlan.com/jbrout/;
     description = "Photo manager";
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/applications/misc/cointop/default.nix b/pkgs/applications/misc/cointop/default.nix
index 2ac335759ce..23d76afff0c 100644
--- a/pkgs/applications/misc/cointop/default.nix
+++ b/pkgs/applications/misc/cointop/default.nix
@@ -26,5 +26,6 @@ buildGoPackage rec {
     homepage  = https://cointop.sh;
     platforms = stdenv.lib.platforms.linux; # cannot test others
     maintainers = [ ];
+    license = stdenv.lib.licenses.asl20;
   };
 }
diff --git a/pkgs/applications/misc/fetchmail/default.nix b/pkgs/applications/misc/fetchmail/default.nix
index 5cd8f572ad4..8304cb0f8d1 100644
--- a/pkgs/applications/misc/fetchmail/default.nix
+++ b/pkgs/applications/misc/fetchmail/default.nix
@@ -29,5 +29,6 @@ stdenv.mkDerivation {
 
     platforms = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.peti ];
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/applications/misc/osmctools/default.nix b/pkgs/applications/misc/osmctools/default.nix
index e70be8201b3..bb53782fb7d 100644
--- a/pkgs/applications/misc/osmctools/default.nix
+++ b/pkgs/applications/misc/osmctools/default.nix
@@ -42,5 +42,6 @@ stdenv.mkDerivation rec {
       https://wiki.openstreetmap.org/wiki/Osmfilter
     ];
     platforms = platforms.unix;
+    license = licenses.agpl3;
   };
 }
diff --git a/pkgs/applications/misc/pdfmod/default.nix b/pkgs/applications/misc/pdfmod/default.nix
index 2c0d642863e..45d83b5872f 100644
--- a/pkgs/applications/misc/pdfmod/default.nix
+++ b/pkgs/applications/misc/pdfmod/default.nix
@@ -44,5 +44,6 @@ stdenv.mkDerivation rec {
     description = "A simple application for modifying PDF documents";
     platforms = platforms.all;
     maintainers = with maintainers; [ obadz ];
+    license = licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/applications/misc/pdfshuffler/default.nix b/pkgs/applications/misc/pdfshuffler/default.nix
index e06f4407534..025ad9cd30a 100644
--- a/pkgs/applications/misc/pdfshuffler/default.nix
+++ b/pkgs/applications/misc/pdfshuffler/default.nix
@@ -36,5 +36,6 @@ python3Packages.buildPythonApplication rec {
     description = "Merge or split pdf documents and rotate, crop and rearrange their pages";
     platforms = platforms.linux;
     maintainers = with maintainers; [ mic92 ];
+    license = licenses.gpl3;
   };
 }
diff --git a/pkgs/applications/misc/rxvt_unicode/default.nix b/pkgs/applications/misc/rxvt_unicode/default.nix
index 4ee9f461760..0e59ef5512d 100644
--- a/pkgs/applications/misc/rxvt_unicode/default.nix
+++ b/pkgs/applications/misc/rxvt_unicode/default.nix
@@ -67,5 +67,6 @@ stdenv.mkDerivation (rec {
     downloadPage = "http://dist.schmorp.de/rxvt-unicode/Attic/";
     maintainers = [ ];
     platforms = platforms.unix;
+    license = licenses.gpl3;
   };
 })
diff --git a/pkgs/applications/misc/tasknc/default.nix b/pkgs/applications/misc/tasknc/default.nix
index e44690a5bd7..bf0e964d591 100644
--- a/pkgs/applications/misc/tasknc/default.nix
+++ b/pkgs/applications/misc/tasknc/default.nix
@@ -38,5 +38,6 @@ stdenv.mkDerivation rec {
     description = "A ncurses wrapper around taskwarrior";
     maintainers = with maintainers; [ infinisil ];
     platforms = platforms.linux; # Cannot test others
+    license = licenses.mit;
   };
 }
diff --git a/pkgs/applications/misc/twmn/default.nix b/pkgs/applications/misc/twmn/default.nix
index 020aa963541..0667ec49b32 100644
--- a/pkgs/applications/misc/twmn/default.nix
+++ b/pkgs/applications/misc/twmn/default.nix
@@ -30,5 +30,6 @@ stdenv.mkDerivation rec {
     homepage = https://github.com/sboli/twmn;
     platforms = with stdenv.lib.platforms; linux;
     maintainers = [ stdenv.lib.maintainers.matejc ];
+    license = stdenv.lib.licenses.lgpl3;
   };
 }
diff --git a/pkgs/applications/misc/xmove/default.nix b/pkgs/applications/misc/xmove/default.nix
index 32729d57475..e461a2c8816 100644
--- a/pkgs/applications/misc/xmove/default.nix
+++ b/pkgs/applications/misc/xmove/default.nix
@@ -14,5 +14,6 @@ stdenv.mkDerivation {
 
   meta = {
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.mit;
   };
 }
diff --git a/pkgs/applications/networking/browsers/dillo/default.nix b/pkgs/applications/networking/browsers/dillo/default.nix
index 73094767bf3..9dc329dfc18 100644
--- a/pkgs/applications/networking/browsers/dillo/default.nix
+++ b/pkgs/applications/networking/browsers/dillo/default.nix
@@ -27,5 +27,6 @@ stdenv.mkDerivation rec {
     '';
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
+    license = licenses.gpl3;
   };
 }
diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index f1d7b216120..3ad1e811e68 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -37,6 +37,7 @@ rec {
       homepage = http://www.mozilla.com/en-US/firefox/;
       maintainers = with lib.maintainers; [ eelco ];
       platforms = lib.platforms.linux;
+      license = lib.licenses.mpl20;
     };
     updateScript = callPackage ./update.nix {
       attrPath = "firefox-unwrapped";
@@ -138,6 +139,7 @@ rec {
       '';
       homepage = https://www.torproject.org/projects/torbrowser.html;
       platforms = lib.platforms.linux;
+      license = lib.licenses.bsd3;
     };
   };
 
diff --git a/pkgs/applications/networking/browsers/w3m/default.nix b/pkgs/applications/networking/browsers/w3m/default.nix
index c71ccdf8a0d..d1561a06526 100644
--- a/pkgs/applications/networking/browsers/w3m/default.nix
+++ b/pkgs/applications/networking/browsers/w3m/default.nix
@@ -76,5 +76,6 @@ stdenv.mkDerivation rec {
     description = "A text-mode web browser";
     maintainers = [ maintainers.cstrahan ];
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.mit;
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/ekiga/default.nix b/pkgs/applications/networking/instant-messengers/ekiga/default.nix
index f831ac0847c..bcabdf43cd2 100644
--- a/pkgs/applications/networking/instant-messengers/ekiga/default.nix
+++ b/pkgs/applications/networking/instant-messengers/ekiga/default.nix
@@ -55,6 +55,7 @@ stdenv.mkDerivation rec {
     description = "VOIP/Videoconferencing app with full SIP and H.323 support";
     maintainers = [ maintainers.raskin ];
     platforms = platforms.linux;
+    license = licenses.gpl2Plus;
   };
 
   passthru = {
diff --git a/pkgs/applications/networking/instant-messengers/nheko/default.nix b/pkgs/applications/networking/instant-messengers/nheko/default.nix
index 929277996c5..cf9558b4b95 100644
--- a/pkgs/applications/networking/instant-messengers/nheko/default.nix
+++ b/pkgs/applications/networking/instant-messengers/nheko/default.nix
@@ -98,5 +98,6 @@ stdenv.mkDerivation rec {
     description = "Desktop client for the Matrix protocol";
     maintainers = with maintainers; [ ekleog ];
     platforms = platforms.all;
+    license = licenses.gpl3Plus;
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/rambox/default.nix b/pkgs/applications/networking/instant-messengers/rambox/default.nix
index b6e9c921025..7c630e522af 100644
--- a/pkgs/applications/networking/instant-messengers/rambox/default.nix
+++ b/pkgs/applications/networking/instant-messengers/rambox/default.nix
@@ -37,4 +37,8 @@ stdenv.mkDerivation {
     mkdir -p $out/share/applications
     ln -s ${desktopItem}/share/applications/* $out/share/applications
   '';
+
+  inherit (rambox-bare.meta // {
+    platforms = [ "i686-linux" "x86_64-linux" ];
+  });
 }
diff --git a/pkgs/applications/networking/irc/irssi/default.nix b/pkgs/applications/networking/irc/irssi/default.nix
index b5bab3585c5..ff80df6523c 100644
--- a/pkgs/applications/networking/irc/irssi/default.nix
+++ b/pkgs/applications/networking/irc/irssi/default.nix
@@ -24,5 +24,6 @@ stdenv.mkDerivation rec {
     description = "A terminal based IRC client";
     platforms   = stdenv.lib.platforms.unix;
     maintainers = with stdenv.lib.maintainers; [ lovek323 ];
+    license     = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/applications/networking/owncloud-client/default.nix b/pkgs/applications/networking/owncloud-client/default.nix
index d5966845a0b..9bb266665a6 100644
--- a/pkgs/applications/networking/owncloud-client/default.nix
+++ b/pkgs/applications/networking/owncloud-client/default.nix
@@ -25,5 +25,6 @@ stdenv.mkDerivation rec {
     homepage = https://owncloud.org;
     maintainers = [ maintainers.qknight ];
     platforms = platforms.unix;
+    license = licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/applications/networking/siproxd/default.nix b/pkgs/applications/networking/siproxd/default.nix
index 14ed2587e63..cd697f107b3 100644
--- a/pkgs/applications/networking/siproxd/default.nix
+++ b/pkgs/applications/networking/siproxd/default.nix
@@ -17,5 +17,6 @@ stdenv.mkDerivation rec {
     description = "A masquerading SIP Proxy Server";
     maintainers = with stdenv.lib.maintainers; [viric];
     platforms = with stdenv.lib.platforms; linux;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/applications/window-managers/taffybar/default.nix b/pkgs/applications/window-managers/taffybar/default.nix
index dfb2eec5dc5..681a5baec82 100644
--- a/pkgs/applications/window-managers/taffybar/default.nix
+++ b/pkgs/applications/window-managers/taffybar/default.nix
@@ -15,5 +15,6 @@ in stdenv.mkDerivation {
 
   meta = {
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.bsd3;
   };
 }
diff --git a/pkgs/data/fonts/junicode/default.nix b/pkgs/data/fonts/junicode/default.nix
index 8b1ddd0c753..824d9044d76 100644
--- a/pkgs/data/fonts/junicode/default.nix
+++ b/pkgs/data/fonts/junicode/default.nix
@@ -16,5 +16,6 @@ fetchzip {
     homepage = http://junicode.sourceforge.net/;
     description = "A Unicode font for medievalists";
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/data/fonts/libertine/default.nix b/pkgs/data/fonts/libertine/default.nix
index 91a7932c2ca..748c0268a80 100644
--- a/pkgs/data/fonts/libertine/default.nix
+++ b/pkgs/data/fonts/libertine/default.nix
@@ -49,5 +49,6 @@ stdenv.mkDerivation rec {
     homepage = http://linuxlibertine.sf.net;
     platforms = platforms.linux;
     maintainers = [ maintainers.volth ];
+    license = licenses.ofl;
   };
 }
diff --git a/pkgs/development/compilers/jikes/default.nix b/pkgs/development/compilers/jikes/default.nix
index 1e202160b3c..1247f369c5c 100644
--- a/pkgs/development/compilers/jikes/default.nix
+++ b/pkgs/development/compilers/jikes/default.nix
@@ -9,5 +9,6 @@ stdenv.mkDerivation {
 
   meta = {
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.epl10;
   };
 }
diff --git a/pkgs/development/compilers/nasm/default.nix b/pkgs/development/compilers/nasm/default.nix
index a0daa7df173..b95f6e5ee95 100644
--- a/pkgs/development/compilers/nasm/default.nix
+++ b/pkgs/development/compilers/nasm/default.nix
@@ -22,5 +22,6 @@ stdenv.mkDerivation rec {
     description = "An 80x86 and x86-64 assembler designed for portability and modularity";
     platforms = platforms.unix;
     maintainers = with maintainers; [ pSub willibutz ];
+    license = licenses.bsd2;
   };
 }
diff --git a/pkgs/development/interpreters/pyrex/0.9.5.nix b/pkgs/development/interpreters/pyrex/0.9.5.nix
index be11b38a0b8..009f9b48ea4 100644
--- a/pkgs/development/interpreters/pyrex/0.9.5.nix
+++ b/pkgs/development/interpreters/pyrex/0.9.5.nix
@@ -1,4 +1,4 @@
-{ fetchurl, python2Packages }:
+{ stdenv, fetchurl, python2Packages }:
 
 let version = "0.9.5.1.1"; in
 
@@ -15,5 +15,6 @@ python2Packages.buildPythonPackage rec {
   meta = {
     homepage = http://www.cosc.canterbury.ac.nz/greg.ewing/python/Pyrex/;
     description = "A language for writing Python extension modules";
+    license = stdenv.lib.licenses.asl20;
   };
 }
diff --git a/pkgs/development/interpreters/pyrex/0.9.6.nix b/pkgs/development/interpreters/pyrex/0.9.6.nix
index 2a18dbff9e6..d79cd58c159 100644
--- a/pkgs/development/interpreters/pyrex/0.9.6.nix
+++ b/pkgs/development/interpreters/pyrex/0.9.6.nix
@@ -1,4 +1,4 @@
-{ fetchurl, python2Packages }:
+{ stdenv, fetchurl, python2Packages }:
 
 let version = "0.9.6.4"; in
 
@@ -15,5 +15,6 @@ python2Packages.buildPythonPackage rec {
   meta = {
     homepage = http://www.cosc.canterbury.ac.nz/greg.ewing/python/Pyrex/;
     description = "A language for writing Python extension modules";
+    license = stdenv.lib.licenses.asl20;
   };
 }
diff --git a/pkgs/development/interpreters/scheme48/default.nix b/pkgs/development/interpreters/scheme48/default.nix
index 1bfe8124104..e01aef98303 100644
--- a/pkgs/development/interpreters/scheme48/default.nix
+++ b/pkgs/development/interpreters/scheme48/default.nix
@@ -8,6 +8,7 @@ stdenv.mkDerivation {
     description = "Scheme 48";
     maintainers = with stdenv.lib.maintainers; [ the-kenny ];
     platforms = with stdenv.lib.platforms; unix;
+    license = stdenv.lib.licenses.bsd3;
   };
 
   src = fetchurl {
diff --git a/pkgs/development/libraries/beecrypt/default.nix b/pkgs/development/libraries/beecrypt/default.nix
index a48de9a03f2..09758440524 100644
--- a/pkgs/development/libraries/beecrypt/default.nix
+++ b/pkgs/development/libraries/beecrypt/default.nix
@@ -11,5 +11,6 @@ stdenv.mkDerivation {
 
   meta = {
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.lgpl2;
   };
 }
diff --git a/pkgs/development/libraries/exiv2/default.nix b/pkgs/development/libraries/exiv2/default.nix
index f573a275aaa..c26a2a20a81 100644
--- a/pkgs/development/libraries/exiv2/default.nix
+++ b/pkgs/development/libraries/exiv2/default.nix
@@ -50,6 +50,6 @@ stdenv.mkDerivation rec {
     homepage = http://www.exiv2.org/;
     description = "A library and command-line utility to manage image metadata";
     platforms = platforms.all;
-    license = licenses.gpl2;
+    license = licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/development/libraries/java/smack/default.nix b/pkgs/development/libraries/java/smack/default.nix
index c39478e590d..e28925c65bb 100644
--- a/pkgs/development/libraries/java/smack/default.nix
+++ b/pkgs/development/libraries/java/smack/default.nix
@@ -11,5 +11,6 @@ stdenv.mkDerivation {
 
   meta = {
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.asl20;
   };
 }
diff --git a/pkgs/development/libraries/libbluedevil/default.nix b/pkgs/development/libraries/libbluedevil/default.nix
index d2e4fe90d2c..d8f2426e477 100644
--- a/pkgs/development/libraries/libbluedevil/default.nix
+++ b/pkgs/development/libraries/libbluedevil/default.nix
@@ -16,5 +16,6 @@ stdenv.mkDerivation rec {
 
   meta = {
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/development/libraries/libcdaudio/default.nix b/pkgs/development/libraries/libcdaudio/default.nix
index 5ae17fe78f0..218eaeea571 100644
--- a/pkgs/development/libraries/libcdaudio/default.nix
+++ b/pkgs/development/libraries/libcdaudio/default.nix
@@ -9,5 +9,6 @@ stdenv.mkDerivation {
 
   meta = {
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.lgpl2;
   };
 }
diff --git a/pkgs/development/libraries/libcdr/default.nix b/pkgs/development/libraries/libcdr/default.nix
index 8b5130b0eac..fa309dc8844 100644
--- a/pkgs/development/libraries/libcdr/default.nix
+++ b/pkgs/development/libraries/libcdr/default.nix
@@ -27,5 +27,6 @@ stdenv.mkDerivation rec {
     description = "A library providing ability to interpret and import Corel Draw drawings into various applications";
     homepage = http://www.freedesktop.org/wiki/Software/libcdr;
     platforms = stdenv.lib.platforms.all;
+    license = stdenv.lib.licenses.mpl20;
   };
 }
diff --git a/pkgs/development/libraries/libdmtx/default.nix b/pkgs/development/libraries/libdmtx/default.nix
index 390bb4ea9e4..f5248dfc79e 100644
--- a/pkgs/development/libraries/libdmtx/default.nix
+++ b/pkgs/development/libraries/libdmtx/default.nix
@@ -15,5 +15,6 @@ stdenv.mkDerivation rec {
     homepage = http://libdmtx.org;
     platforms = stdenv.lib.platforms.all;
     maintainers = [ ];
+    license = stdenv.lib.licenses.bsd2;
   };
 }
diff --git a/pkgs/development/libraries/libdwarf/default.nix b/pkgs/development/libraries/libdwarf/default.nix
index e76308d22ac..d043820aa08 100644
--- a/pkgs/development/libraries/libdwarf/default.nix
+++ b/pkgs/development/libraries/libdwarf/default.nix
@@ -12,6 +12,7 @@ let
   meta = {
     homepage = https://www.prevanders.net/dwarf.html;
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.lgpl21Plus;
   };
 
 in rec {
diff --git a/pkgs/development/libraries/libee/default.nix b/pkgs/development/libraries/libee/default.nix
index 7eb5df4c7ec..7255b3fece4 100644
--- a/pkgs/development/libraries/libee/default.nix
+++ b/pkgs/development/libraries/libee/default.nix
@@ -14,5 +14,6 @@ stdenv.mkDerivation {
     homepage = http://www.libee.org/;
     description = "An Event Expression Library inspired by CEE";
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.lgpl21Plus;
   };
 }
diff --git a/pkgs/development/libraries/openbabel/default.nix b/pkgs/development/libraries/openbabel/default.nix
index 61024a33113..bfbf6f1212f 100644
--- a/pkgs/development/libraries/openbabel/default.nix
+++ b/pkgs/development/libraries/openbabel/default.nix
@@ -19,5 +19,6 @@ stdenv.mkDerivation rec {
   meta = {
     platforms = stdenv.lib.platforms.all;
     maintainers = [ ];
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/development/libraries/openbsm/default.nix b/pkgs/development/libraries/openbsm/default.nix
index 9f75bff40e9..a9559c6abfb 100644
--- a/pkgs/development/libraries/openbsm/default.nix
+++ b/pkgs/development/libraries/openbsm/default.nix
@@ -18,5 +18,6 @@ stdenv.mkDerivation rec {
     homepage = http://www.openbsm.org/;
     platforms = lib.platforms.unix;
     maintainers = with lib.maintainers; [ matthewbauer ];
+    license = lib.licenses.bsd2;
   };
 }
diff --git a/pkgs/development/libraries/tre/default.nix b/pkgs/development/libraries/tre/default.nix
index 12f7e4c765d..901b6aa097f 100644
--- a/pkgs/development/libraries/tre/default.nix
+++ b/pkgs/development/libraries/tre/default.nix
@@ -16,5 +16,6 @@ stdenv.mkDerivation rec {
 
   meta = {
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.bsd2;
   };
 }
diff --git a/pkgs/development/mobile/androidenv/androidndk.nix b/pkgs/development/mobile/androidenv/androidndk.nix
index fd8651e89cf..972c8a5dfbc 100644
--- a/pkgs/development/mobile/androidenv/androidndk.nix
+++ b/pkgs/development/mobile/androidenv/androidndk.nix
@@ -91,5 +91,6 @@ stdenv.mkDerivation rec {
   meta = {
     platforms = stdenv.lib.platforms.linux;
     hydraPlatforms = [];
+    license = stdenv.lib.licenses.asl20;
   };
 }
diff --git a/pkgs/development/mobile/androidenv/androidsdk.nix b/pkgs/development/mobile/androidenv/androidsdk.nix
index 8d9f87b6d07..503e4f5c889 100644
--- a/pkgs/development/mobile/androidenv/androidsdk.nix
+++ b/pkgs/development/mobile/androidenv/androidsdk.nix
@@ -267,5 +267,6 @@ stdenv.mkDerivation rec {
   meta = {
     platforms = stdenv.lib.platforms.unix;
     hydraPlatforms = [];
+    license = stdenv.lib.licenses.unfree;
   };
 }
diff --git a/pkgs/development/python-modules/acme/default.nix b/pkgs/development/python-modules/acme/default.nix
index 820ee2a95d8..503c6f79659 100644
--- a/pkgs/development/python-modules/acme/default.nix
+++ b/pkgs/development/python-modules/acme/default.nix
@@ -27,4 +27,8 @@ buildPythonPackage rec {
   checkInputs = [ nose ];
 
   postUnpack = "sourceRoot=\${sourceRoot}/acme";
+
+  meta = certbot.meta // {
+    description = "ACME protocol implementation in Python";
+  };
 }
diff --git a/pkgs/development/python-modules/amqplib/default.nix b/pkgs/development/python-modules/amqplib/default.nix
index 37f1e395d8d..3699fdd5d49 100644
--- a/pkgs/development/python-modules/amqplib/default.nix
+++ b/pkgs/development/python-modules/amqplib/default.nix
@@ -15,5 +15,6 @@ buildPythonPackage rec {
   meta = with stdenv.lib; {
     homepage = http://code.google.com/p/py-amqplib/;
     description = "Python client for the Advanced Message Queuing Procotol (AMQP)";
+    license = licenses.lgpl21;
   };
 }
diff --git a/pkgs/development/python-modules/ansi/default.nix b/pkgs/development/python-modules/ansi/default.nix
index a79de55d2eb..77b93ce890e 100644
--- a/pkgs/development/python-modules/ansi/default.nix
+++ b/pkgs/development/python-modules/ansi/default.nix
@@ -1,4 +1,4 @@
-{ buildPythonPackage, fetchPypi }:
+{ lib, buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "ansi";
@@ -12,4 +12,10 @@ buildPythonPackage rec {
   checkPhase = ''
     python -c "import ansi.color"
   '';
+
+  meta = with lib; {
+    description = "ANSI cursor movement and graphics";
+    homepage = https://github.com/tehmaze/ansi/;
+    license = licenses.mit;
+  };
 }
diff --git a/pkgs/development/python-modules/anyjson/default.nix b/pkgs/development/python-modules/anyjson/default.nix
index 6db4bbdc314..65476b47f8f 100644
--- a/pkgs/development/python-modules/anyjson/default.nix
+++ b/pkgs/development/python-modules/anyjson/default.nix
@@ -1,4 +1,4 @@
-{ buildPythonPackage, fetchPypi, isPy3k, nose }:
+{ lib, buildPythonPackage, fetchPypi, isPy3k, nose }:
 
 buildPythonPackage rec {
   pname = "anyjson";
@@ -14,8 +14,9 @@ buildPythonPackage rec {
 
   buildInputs = [ nose ];
 
-  meta = {
-    homepage = https://pypi.python.org/pypi/anyjson/;
+  meta = with lib; {
+    homepage = https://bitbucket.org/runeh/anyjson/;
     description = "Wrapper that selects the best available JSON implementation";
+    license = licenses.bsd2;
   };
 }
diff --git a/pkgs/development/python-modules/application/default.nix b/pkgs/development/python-modules/application/default.nix
index 584eb3ae2c5..520e01723e6 100644
--- a/pkgs/development/python-modules/application/default.nix
+++ b/pkgs/development/python-modules/application/default.nix
@@ -1,4 +1,4 @@
-{ buildPythonPackage, fetchdarcs, zope_interface, isPy3k }:
+{ lib, buildPythonPackage, fetchdarcs, zope_interface, isPy3k }:
 
 buildPythonPackage rec {
   pname = "python-application";
@@ -12,4 +12,10 @@ buildPythonPackage rec {
   };
 
   buildInputs = [ zope_interface ];
+
+  meta = with lib; {
+    description = "Basic building blocks for python applications";
+    homepage = https://github.com/AGProjects/python-application;
+    license = licenses.lgpl2Plus;
+  };
 }
diff --git a/pkgs/development/python-modules/area53/default.nix b/pkgs/development/python-modules/area53/default.nix
index 20013b8a1ed..cd8e83dbf63 100644
--- a/pkgs/development/python-modules/area53/default.nix
+++ b/pkgs/development/python-modules/area53/default.nix
@@ -1,4 +1,4 @@
-{ buildPythonPackage, fetchPypi
+{ lib, buildPythonPackage, fetchPypi
 , boto }:
 
 buildPythonPackage rec {
@@ -14,4 +14,10 @@ buildPythonPackage rec {
   doCheck = false;
 
   propagatedBuildInputs = [ boto ];
+
+  meta = with lib; {
+    description = "Python Interface to Route53";
+    homepage = https://github.com/mariusv/Area53;
+    license = licenses.unfree; # unspecified
+  };
 }
diff --git a/pkgs/development/python-modules/bitbucket-cli/default.nix b/pkgs/development/python-modules/bitbucket-cli/default.nix
index b5d115f4d0b..0a54c0ed17c 100644
--- a/pkgs/development/python-modules/bitbucket-cli/default.nix
+++ b/pkgs/development/python-modules/bitbucket-cli/default.nix
@@ -19,5 +19,6 @@ buildPythonPackage rec {
     description = "Bitbucket command line interface";
     homepage = https://bitbucket.org/zhemao/bitbucket-cli;
     maintainers = with maintainers; [ refnil ];
+    license = licenses.bsd2;
   };
 }
diff --git a/pkgs/development/tools/analysis/emma/default.nix b/pkgs/development/tools/analysis/emma/default.nix
index c4e37e5c700..1bd24b4785d 100644
--- a/pkgs/development/tools/analysis/emma/default.nix
+++ b/pkgs/development/tools/analysis/emma/default.nix
@@ -19,5 +19,6 @@ stdenv.mkDerivation {
     homepage = http://emma.sourceforge.net/;
     description = "A code coverage tool for Java";
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.cpl10;
   };
 }
diff --git a/pkgs/development/tools/analysis/findbugs/default.nix b/pkgs/development/tools/analysis/findbugs/default.nix
index a5a3d243918..7f2df62008f 100644
--- a/pkgs/development/tools/analysis/findbugs/default.nix
+++ b/pkgs/development/tools/analysis/findbugs/default.nix
@@ -39,5 +39,6 @@ stdenv.mkDerivation rec {
     homepage = http://findbugs.sourceforge.net/;
     maintainers = with maintainers; [ pSub ];
     platforms = with platforms; unix;
+    license = licenses.lgpl3;
   };
 }
diff --git a/pkgs/development/tools/build-managers/cmake/2.8.nix b/pkgs/development/tools/build-managers/cmake/2.8.nix
index c61bf3287db..a57d20e2702 100644
--- a/pkgs/development/tools/build-managers/cmake/2.8.nix
+++ b/pkgs/development/tools/build-managers/cmake/2.8.nix
@@ -84,5 +84,6 @@ stdenv.mkDerivation rec {
     description = "Cross-Platform Makefile Generator";
     platforms = if useQt4 then qt4.meta.platforms else stdenv.lib.platforms.unix;
     maintainers = with stdenv.lib.maintainers; [ ];
+    license = stdenv.lib.licenses.bsd3;
   };
 }
diff --git a/pkgs/development/tools/build-managers/cmake/default.nix b/pkgs/development/tools/build-managers/cmake/default.nix
index ed0928febe2..81a1dd23f2e 100644
--- a/pkgs/development/tools/build-managers/cmake/default.nix
+++ b/pkgs/development/tools/build-managers/cmake/default.nix
@@ -126,5 +126,6 @@ stdenv.mkDerivation rec {
     description = "Cross-Platform Makefile Generator";
     platforms = if useQt4 then qt4.meta.platforms else platforms.all;
     maintainers = with maintainers; [ ttuegel lnl7 ];
+    license = licenses.bsd3;
   };
 }
diff --git a/pkgs/development/tools/build-managers/rebar/default.nix b/pkgs/development/tools/build-managers/rebar/default.nix
index b028534f3c8..98cd7e136d2 100644
--- a/pkgs/development/tools/build-managers/rebar/default.nix
+++ b/pkgs/development/tools/build-managers/rebar/default.nix
@@ -36,5 +36,6 @@ stdenv.mkDerivation {
 
     platforms = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.the-kenny ];
+    license = stdenv.lib.licenses.asl20;
   };
 }
diff --git a/pkgs/development/tools/build-managers/rebar3/default.nix b/pkgs/development/tools/build-managers/rebar3/default.nix
index d9e260a13de..e96852602fc 100644
--- a/pkgs/development/tools/build-managers/rebar3/default.nix
+++ b/pkgs/development/tools/build-managers/rebar3/default.nix
@@ -122,5 +122,6 @@ stdenv.mkDerivation {
 
     platforms = stdenv.lib.platforms.unix;
     maintainers = with stdenv.lib.maintainers; [ gleber tazjin ];
+    license = stdenv.lib.licenses.asl20;
   };
 }
diff --git a/pkgs/development/tools/ocaml/opam/default.nix b/pkgs/development/tools/ocaml/opam/default.nix
index 73b7da119ab..7e84719ae47 100644
--- a/pkgs/development/tools/ocaml/opam/default.nix
+++ b/pkgs/development/tools/ocaml/opam/default.nix
@@ -87,5 +87,6 @@ in stdenv.mkDerivation rec {
     homepage = http://opam.ocamlpro.com/;
     maintainers = [ maintainers.henrytill ];
     platforms = platforms.all;
+    license = licenses.lgpl21Plus;
   };
 }
diff --git a/pkgs/development/tools/toxiproxy/default.nix b/pkgs/development/tools/toxiproxy/default.nix
index 10a27e2e3b8..565ec7904f1 100644
--- a/pkgs/development/tools/toxiproxy/default.nix
+++ b/pkgs/development/tools/toxiproxy/default.nix
@@ -22,5 +22,6 @@ buildGoPackage rec {
   meta = {
     description = "Proxy for for simulating network conditions.";
     maintainers = with lib.maintainers; [ avnik ];
+    license = lib.licenses.mit;
   };
 }
diff --git a/pkgs/games/construo/default.nix b/pkgs/games/construo/default.nix
index 7db64136731..38a67289d39 100644
--- a/pkgs/games/construo/default.nix
+++ b/pkgs/games/construo/default.nix
@@ -21,5 +21,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Masses and springs simulation game";
     homepage = http://fs.fsf.org/construo/;
+    license = stdenv.lib.licenses.gpl3;
   };
 }
diff --git a/pkgs/games/exult/default.nix b/pkgs/games/exult/default.nix
index 2fe76649d55..36ea8a7a3d5 100644
--- a/pkgs/games/exult/default.nix
+++ b/pkgs/games/exult/default.nix
@@ -46,5 +46,6 @@ stdenv.mkDerivation rec {
     maintainers = [ stdenv.lib.maintainers.eelco ];
     platforms = stdenv.lib.platforms.unix;
     hydraPlatforms = stdenv.lib.platforms.linux; # darwin times out
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/games/newtonwars/default.nix b/pkgs/games/newtonwars/default.nix
index 0fe9d1ee0f5..c806dfa5b80 100644
--- a/pkgs/games/newtonwars/default.nix
+++ b/pkgs/games/newtonwars/default.nix
@@ -33,5 +33,6 @@ stdenv.mkDerivation rec {
     description = "A space battle game with gravity as the main theme";
     maintainers = with maintainers; [ pSub ];
     platforms = platforms.linux;
+    license = licenses.mit;
   };
 }
diff --git a/pkgs/games/trackballs/default.nix b/pkgs/games/trackballs/default.nix
index 06bd2a8bc4d..8549a860d8e 100644
--- a/pkgs/games/trackballs/default.nix
+++ b/pkgs/games/trackballs/default.nix
@@ -19,5 +19,6 @@ stdenv.mkDerivation rec {
     homepage = https://trackballs.github.io/;
     description = "3D Marble Madness clone";
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/misc/emulators/dosbox/unstable.nix b/pkgs/misc/emulators/dosbox/unstable.nix
index aecfd7698f0..e1762d66641 100644
--- a/pkgs/misc/emulators/dosbox/unstable.nix
+++ b/pkgs/misc/emulators/dosbox/unstable.nix
@@ -36,5 +36,6 @@ in stdenv.mkDerivation rec {
     description = "A DOS emulator";
     platforms = stdenv.lib.platforms.unix;
     maintainers = with stdenv.lib.maintainers; [ binarin ];
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/misc/phabricator/default.nix b/pkgs/misc/phabricator/default.nix
index 367e4e53442..0dde5b2b6d7 100644
--- a/pkgs/misc/phabricator/default.nix
+++ b/pkgs/misc/phabricator/default.nix
@@ -28,5 +28,6 @@ stdenv.mkDerivation rec {
 
   meta = {
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.asl20;
   };
 }
diff --git a/pkgs/os-specific/linux/dmraid/default.nix b/pkgs/os-specific/linux/dmraid/default.nix
index a6f6365ae63..129ccb30456 100644
--- a/pkgs/os-specific/linux/dmraid/default.nix
+++ b/pkgs/os-specific/linux/dmraid/default.nix
@@ -44,5 +44,6 @@ stdenv.mkDerivation rec {
     '';
     maintainers = [ stdenv.lib.maintainers.raskin ];
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/os-specific/linux/libcap/default.nix b/pkgs/os-specific/linux/libcap/default.nix
index 8248a628f0a..a7e8894ccfe 100644
--- a/pkgs/os-specific/linux/libcap/default.nix
+++ b/pkgs/os-specific/linux/libcap/default.nix
@@ -55,5 +55,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Library for working with POSIX capabilities";
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.bsd3;
   };
 }
diff --git a/pkgs/os-specific/linux/psmisc/default.nix b/pkgs/os-specific/linux/psmisc/default.nix
index 358fa700382..1eec10860f7 100644
--- a/pkgs/os-specific/linux/psmisc/default.nix
+++ b/pkgs/os-specific/linux/psmisc/default.nix
@@ -14,5 +14,6 @@ stdenv.mkDerivation rec {
     homepage = http://psmisc.sourceforge.net/;
     description = "A set of small useful utilities that use the proc filesystem (such as fuser, killall and pstree)";
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/os-specific/linux/smem/default.nix b/pkgs/os-specific/linux/smem/default.nix
index a07eec431c3..ede8d425f12 100644
--- a/pkgs/os-specific/linux/smem/default.nix
+++ b/pkgs/os-specific/linux/smem/default.nix
@@ -29,5 +29,6 @@ stdenv.mkDerivation rec {
     description = "A memory usage reporting tool that takes shared memory into account";
     platforms = lib.platforms.linux;
     maintainers = [ lib.maintainers.eelco ];
+    license = lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/os-specific/linux/statifier/default.nix b/pkgs/os-specific/linux/statifier/default.nix
index 67df9dd2f11..376ae47ffbe 100644
--- a/pkgs/os-specific/linux/statifier/default.nix
+++ b/pkgs/os-specific/linux/statifier/default.nix
@@ -19,5 +19,6 @@ multiStdenv.mkDerivation {
   meta = with multiStdenv.lib; {
     description = "Tool for creating static Linux binaries";
     platforms = platforms.linux;
+    license = licenses.gpl2;
   };
 }
diff --git a/pkgs/os-specific/linux/sysvinit/default.nix b/pkgs/os-specific/linux/sysvinit/default.nix
index e03d293b0e3..2e8cf0125e5 100644
--- a/pkgs/os-specific/linux/sysvinit/default.nix
+++ b/pkgs/os-specific/linux/sysvinit/default.nix
@@ -40,5 +40,6 @@ stdenv.mkDerivation {
     homepage = http://www.nongnu.org/sysvinit/;
     description = "Utilities related to booting and shutdown";
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/os-specific/linux/untie/default.nix b/pkgs/os-specific/linux/untie/default.nix
index 91443eeced5..739bd447192 100644
--- a/pkgs/os-specific/linux/untie/default.nix
+++ b/pkgs/os-specific/linux/untie/default.nix
@@ -14,6 +14,7 @@ stdenv.mkDerivation rec {
     description = "A tool to run processes untied from some of the namespaces";
     maintainers = with maintainers; [ raskin ];
     platforms = platforms.linux;
+    license = licenses.gpl2Plus;
   };
 
   passthru = {
diff --git a/pkgs/os-specific/linux/upower/default.nix b/pkgs/os-specific/linux/upower/default.nix
index c4af0bec9a2..629f61bf5b1 100644
--- a/pkgs/os-specific/linux/upower/default.nix
+++ b/pkgs/os-specific/linux/upower/default.nix
@@ -36,5 +36,6 @@ stdenv.mkDerivation rec {
     homepage = https://upower.freedesktop.org/;
     description = "A D-Bus service for power management";
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/servers/diod/default.nix b/pkgs/servers/diod/default.nix
index a233b6ba4cf..eba73b2692a 100644
--- a/pkgs/servers/diod/default.nix
+++ b/pkgs/servers/diod/default.nix
@@ -15,5 +15,6 @@ stdenv.mkDerivation rec {
     description = "An I/O forwarding server that implements a variant of the 9P protocol";
     maintainers = [ stdenv.lib.maintainers.rickynils];
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/servers/ftp/vsftpd/default.nix b/pkgs/servers/ftp/vsftpd/default.nix
index 2386acf1b79..cc7493f9533 100644
--- a/pkgs/servers/ftp/vsftpd/default.nix
+++ b/pkgs/servers/ftp/vsftpd/default.nix
@@ -46,5 +46,6 @@ stdenv.mkDerivation rec {
 
   meta = {
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/servers/nosql/riak/2.2.0.nix b/pkgs/servers/nosql/riak/2.2.0.nix
index b041aa9f35f..a09b4543cbb 100644
--- a/pkgs/servers/nosql/riak/2.2.0.nix
+++ b/pkgs/servers/nosql/riak/2.2.0.nix
@@ -92,5 +92,6 @@ stdenv.mkDerivation rec {
     maintainers = with maintainers; [ cstrahan mdaiter ];
     description = "Dynamo inspired NoSQL DB by Basho";
     platforms   = [ "x86_64-linux" ];
+    license     = licenses.asl20;
   };
 }
diff --git a/pkgs/servers/skydns/default.nix b/pkgs/servers/skydns/default.nix
index 7bfea23c78b..82d79785b11 100644
--- a/pkgs/servers/skydns/default.nix
+++ b/pkgs/servers/skydns/default.nix
@@ -1,4 +1,4 @@
-{ buildGoPackage, fetchFromGitHub }:
+{ stdenv, buildGoPackage, fetchFromGitHub }:
 
 buildGoPackage rec {
   name = "skydns-${version}";
@@ -15,4 +15,8 @@ buildGoPackage rec {
   };
 
   goDeps = ./deps.nix;
+
+  meta = {
+    license = stdenv.lib.licenses.mit;
+  };
 }
diff --git a/pkgs/servers/web-apps/morty/default.nix b/pkgs/servers/web-apps/morty/default.nix
index eeb19f81c54..e4dd9b0f2dc 100644
--- a/pkgs/servers/web-apps/morty/default.nix
+++ b/pkgs/servers/web-apps/morty/default.nix
@@ -17,6 +17,7 @@ buildGoPackage rec {
   meta = with stdenv.lib; {
     homepage = "https://github.com/asciimoo/morty";
     maintainers = with maintainers; [ leenaars ];
+    license = licenses.agpl3;
     description = "Privacy aware web content sanitizer proxy as a service";
     longDescription = ''
       Morty is a web content sanitizer proxy as a service. It rewrites web
diff --git a/pkgs/servers/x11/xorg/overrides.nix b/pkgs/servers/x11/xorg/overrides.nix
index 2438c49d9cb..d989d17b032 100644
--- a/pkgs/servers/x11/xorg/overrides.nix
+++ b/pkgs/servers/x11/xorg/overrides.nix
@@ -426,6 +426,10 @@ in
     '';
   };
 
+  xlsfonts = attrs: attrs // {
+    meta = attrs.meta // { license = lib.licenses.mit; };
+  };
+
   xorgserver = with xorg; attrs_passed:
     # exchange attrs if abiCompat is set
     let
diff --git a/pkgs/tools/X11/xmacro/default.nix b/pkgs/tools/X11/xmacro/default.nix
index e986b46aa48..fee601d1575 100644
--- a/pkgs/tools/X11/xmacro/default.nix
+++ b/pkgs/tools/X11/xmacro/default.nix
@@ -15,5 +15,6 @@ stdenv.mkDerivation rec {
 
   meta = {
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/tools/archivers/p7zip/default.nix b/pkgs/tools/archivers/p7zip/default.nix
index 6cabd8ff976..4d8b2477ed5 100644
--- a/pkgs/tools/archivers/p7zip/default.nix
+++ b/pkgs/tools/archivers/p7zip/default.nix
@@ -47,5 +47,6 @@ stdenv.mkDerivation rec {
     # license = stdenv.lib.licenses.lgpl21Plus; + "unRAR restriction"
     platforms = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.raskin ];
+    license = stdenv.lib.licenses.lgpl2Plus;
   };
 }
diff --git a/pkgs/tools/bootloaders/refind/default.nix b/pkgs/tools/bootloaders/refind/default.nix
index 928494667f1..73463bbef89 100644
--- a/pkgs/tools/bootloaders/refind/default.nix
+++ b/pkgs/tools/bootloaders/refind/default.nix
@@ -117,6 +117,7 @@ stdenv.mkDerivation rec {
     homepage = http://refind.sourceforge.net/;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = [ "i686-linux" "x86_64-linux" ];
+    license = licenses.gpl3Plus;
   };
 
 }
diff --git a/pkgs/tools/cd-dvd/brasero/default.nix b/pkgs/tools/cd-dvd/brasero/default.nix
index 9587416a96a..753bdd49959 100644
--- a/pkgs/tools/cd-dvd/brasero/default.nix
+++ b/pkgs/tools/cd-dvd/brasero/default.nix
@@ -45,7 +45,7 @@ in stdenv.mkDerivation rec {
     description = "A Gnome CD/DVD Burner";
     homepage = https://wiki.gnome.org/Apps/Brasero;
     maintainers = [ maintainers.bdimcheff ];
-    license = licenses.gpl2;
+    license = licenses.gpl2Plus;
     platforms = platforms.linux;
   };
 }
diff --git a/pkgs/tools/cd-dvd/brasero/wrapper.nix b/pkgs/tools/cd-dvd/brasero/wrapper.nix
index 839cc1d604e..7f97209a4aa 100644
--- a/pkgs/tools/cd-dvd/brasero/wrapper.nix
+++ b/pkgs/tools/cd-dvd/brasero/wrapper.nix
@@ -12,4 +12,6 @@ in symlinkJoin {
     wrapProgram $out/bin/brasero \
       --prefix PATH ':' ${binPath}
   '';
+  
+  inherit (brasero-original) meta;
 }
diff --git a/pkgs/tools/filesystems/dosfstools/default.nix b/pkgs/tools/filesystems/dosfstools/default.nix
index dc6bcca597b..bc79577ab2b 100644
--- a/pkgs/tools/filesystems/dosfstools/default.nix
+++ b/pkgs/tools/filesystems/dosfstools/default.nix
@@ -21,5 +21,6 @@ stdenv.mkDerivation rec {
     repositories.git = git://daniel-baumann.ch/git/software/dosfstools.git;
     homepage = https://www.daniel-baumann.ch/software/dosfstools/;
     platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.darwin;
+    license = stdenv.lib.licenses.gpl3;
   };
 }
diff --git a/pkgs/tools/filesystems/vmfs-tools/default.nix b/pkgs/tools/filesystems/vmfs-tools/default.nix
index b22f7e07a46..6cc049a4409 100644
--- a/pkgs/tools/filesystems/vmfs-tools/default.nix
+++ b/pkgs/tools/filesystems/vmfs-tools/default.nix
@@ -20,5 +20,6 @@ stdenv.mkDerivation rec {
     description = "FUSE-based VMFS (vmware) mounting tools";
     maintainers = with maintainers; [ peterhoeg ];
     platforms = platforms.linux;
+    license = licenses.gpl2;
   };
 }
diff --git a/pkgs/tools/graphics/scrot/default.nix b/pkgs/tools/graphics/scrot/default.nix
index 49bd74ea412..e3c7254457d 100644
--- a/pkgs/tools/graphics/scrot/default.nix
+++ b/pkgs/tools/graphics/scrot/default.nix
@@ -27,5 +27,6 @@ stdenv.mkDerivation rec {
     description = "A command-line screen capture utility";
     platforms = platforms.linux;
     maintainers = with maintainers; [ garbas ];
+    license = licenses.mit;
   };
 }
diff --git a/pkgs/tools/misc/convmv/default.nix b/pkgs/tools/misc/convmv/default.nix
index 52bcbde1cc1..56b9d5c849a 100644
--- a/pkgs/tools/misc/convmv/default.nix
+++ b/pkgs/tools/misc/convmv/default.nix
@@ -26,5 +26,6 @@ stdenv.mkDerivation rec {
     description = "Converts filenames from one encoding to another";
     platforms = platforms.linux ++ platforms.freebsd ++ platforms.cygwin;
     maintainers = [ ];
+    license = licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/tools/misc/diskscan/default.nix b/pkgs/tools/misc/diskscan/default.nix
index 9449b7759a8..7b97e58fdf9 100644
--- a/pkgs/tools/misc/diskscan/default.nix
+++ b/pkgs/tools/misc/diskscan/default.nix
@@ -21,5 +21,6 @@ stdenv.mkDerivation rec {
     platforms = with platforms; linux;
     maintainers = with maintainers; [ peterhoeg ];
     inherit version;
+    license = licenses.gpl3;
   };
 }
diff --git a/pkgs/tools/misc/disper/default.nix b/pkgs/tools/misc/disper/default.nix
index 27bb62c582a..22951eecf53 100644
--- a/pkgs/tools/misc/disper/default.nix
+++ b/pkgs/tools/misc/disper/default.nix
@@ -23,6 +23,7 @@ stdenv.mkDerivation rec {
     description = "On-the-fly display switch utility";
     homepage = http://willem.engen.nl/projects/disper/;
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.gpl3;
   };
 
 }
diff --git a/pkgs/tools/misc/fondu/default.nix b/pkgs/tools/misc/fondu/default.nix
index 7610bb88f39..e31da3bfd21 100644
--- a/pkgs/tools/misc/fondu/default.nix
+++ b/pkgs/tools/misc/fondu/default.nix
@@ -15,5 +15,6 @@ stdenv.mkDerivation rec {
 
   meta = {
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.gpl3;
   };
 }
diff --git a/pkgs/tools/misc/moreutils/default.nix b/pkgs/tools/misc/moreutils/default.nix
index a8d08018c74..caef0f7b8bb 100644
--- a/pkgs/tools/misc/moreutils/default.nix
+++ b/pkgs/tools/misc/moreutils/default.nix
@@ -30,5 +30,6 @@ stdenv.mkDerivation rec {
     homepage = https://joeyh.name/code/moreutils/;
     maintainers = with maintainers; [ koral pSub ];
     platforms = platforms.all;
+    license = licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/tools/misc/multitail/default.nix b/pkgs/tools/misc/multitail/default.nix
index 39c9323151f..48714a4b6e8 100644
--- a/pkgs/tools/misc/multitail/default.nix
+++ b/pkgs/tools/misc/multitail/default.nix
@@ -23,5 +23,6 @@ stdenv.mkDerivation rec {
     description = "tail on Steroids";
     maintainers = with stdenv.lib.maintainers; [ ];
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/tools/misc/renameutils/default.nix b/pkgs/tools/misc/renameutils/default.nix
index f415b76a303..8b6fec8d021 100644
--- a/pkgs/tools/misc/renameutils/default.nix
+++ b/pkgs/tools/misc/renameutils/default.nix
@@ -16,5 +16,6 @@ stdenv.mkDerivation {
     homepage = http://www.nongnu.org/renameutils/;
     description = "A set of programs to make renaming of files faster";
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/tools/misc/riemann-tools/default.nix b/pkgs/tools/misc/riemann-tools/default.nix
index a20046deafc..92e347a044c 100644
--- a/pkgs/tools/misc/riemann-tools/default.nix
+++ b/pkgs/tools/misc/riemann-tools/default.nix
@@ -1,8 +1,14 @@
-{ bundlerEnv }:
+{ stdenv, bundlerEnv }:
 
 bundlerEnv {
   name = "riemann-tools-0.2.13";
   gemfile = ./Gemfile;
   lockfile = ./Gemfile.lock;
   gemset = ./gemset.nix;
+
+  meta = {
+    description = "Tools to submit data to Riemann";
+    homepage = "https://riemann.io";
+    license = stdenv.lib.licenses.mit;
+  };
 }
diff --git a/pkgs/tools/misc/wv/default.nix b/pkgs/tools/misc/wv/default.nix
index 59efcaa1809..f19d448e5fc 100644
--- a/pkgs/tools/misc/wv/default.nix
+++ b/pkgs/tools/misc/wv/default.nix
@@ -19,5 +19,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Converter from Microsoft Word formats to human-editable ones";
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/tools/networking/getmail/default.nix b/pkgs/tools/networking/getmail/default.nix
index 224c7a4ab48..ac69fd99265 100644
--- a/pkgs/tools/networking/getmail/default.nix
+++ b/pkgs/tools/networking/getmail/default.nix
@@ -26,5 +26,6 @@ python2Packages.buildPythonApplication rec {
     homepage = http://pyropus.ca/software/getmail/;
     inherit version;
     updateWalker = true;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/tools/networking/p2p/rtorrent/default.nix b/pkgs/tools/networking/p2p/rtorrent/default.nix
index 658739c93aa..63652557efa 100644
--- a/pkgs/tools/networking/p2p/rtorrent/default.nix
+++ b/pkgs/tools/networking/p2p/rtorrent/default.nix
@@ -47,5 +47,6 @@ stdenv.mkDerivation rec {
 
     platforms = platforms.unix;
     maintainers = with maintainers; [ ebzzry codyopel ];
+    license = licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/tools/networking/sstp/default.nix b/pkgs/tools/networking/sstp/default.nix
index dce6d1acb77..e8db3a07184 100644
--- a/pkgs/tools/networking/sstp/default.nix
+++ b/pkgs/tools/networking/sstp/default.nix
@@ -28,5 +28,6 @@ stdenv.mkDerivation rec {
     homepage = http://sstp-client.sourceforge.net/;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.ktosiek ];
+    license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/tools/networking/surfraw/default.nix b/pkgs/tools/networking/surfraw/default.nix
index b23616c57e9..80daf6447ef 100644
--- a/pkgs/tools/networking/surfraw/default.nix
+++ b/pkgs/tools/networking/surfraw/default.nix
@@ -19,5 +19,6 @@ stdenv.mkDerivation rec {
     homepage = http://surfraw.alioth.debian.org;
     maintainers = [];
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.publicDomain;
   };
 }
diff --git a/pkgs/tools/package-management/nixops/generic.nix b/pkgs/tools/package-management/nixops/generic.nix
index 105cb6d7ab0..31adac4436c 100644
--- a/pkgs/tools/package-management/nixops/generic.nix
+++ b/pkgs/tools/package-management/nixops/generic.nix
@@ -47,5 +47,6 @@ python2Packages.buildPythonApplication {
     description = "NixOS cloud provisioning and deployment tool";
     maintainers = with lib.maintainers; [ eelco rob domenkozar ];
     platforms = lib.platforms.unix;
+    license = lib.licenses.lgpl3;
   };
 }
diff --git a/pkgs/tools/security/dirmngr/default.nix b/pkgs/tools/security/dirmngr/default.nix
index 888fa48eab9..ee97bda1906 100644
--- a/pkgs/tools/security/dirmngr/default.nix
+++ b/pkgs/tools/security/dirmngr/default.nix
@@ -12,5 +12,6 @@ stdenv.mkDerivation rec {
 
   meta = {
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/tools/security/sbsigntool/default.nix b/pkgs/tools/security/sbsigntool/default.nix
index bcf1a5c1f79..cfe54967cce 100644
--- a/pkgs/tools/security/sbsigntool/default.nix
+++ b/pkgs/tools/security/sbsigntool/default.nix
@@ -47,6 +47,7 @@ stdenv.mkDerivation rec {
     homepage    = http://jk.ozlabs.org/docs/sbkeysync-maintaing-uefi-key-databases;
     maintainers = [ maintainers.tstrobel ];
     platforms   = [ "x86_64-linux" ]; # Broken on i686
+    license     = licenses.gpl3;
   };
 }
 
diff --git a/pkgs/tools/security/seccure/default.nix b/pkgs/tools/security/seccure/default.nix
index 1a276875ed7..a2ec48d4d27 100644
--- a/pkgs/tools/security/seccure/default.nix
+++ b/pkgs/tools/security/seccure/default.nix
@@ -21,5 +21,6 @@ stdenv.mkDerivation rec {
     homepage = http://point-at-infinity.org/seccure/;
     description = "Zero-configuration elliptic curve cryptography utility";
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.lgpl3;
   };
 }
diff --git a/pkgs/tools/security/ssss/default.nix b/pkgs/tools/security/ssss/default.nix
index b286f31304e..3bbcdafcdcd 100644
--- a/pkgs/tools/security/ssss/default.nix
+++ b/pkgs/tools/security/ssss/default.nix
@@ -23,5 +23,6 @@ stdenv.mkDerivation rec {
     description = "Shamir Secret Sharing Scheme";
     homepage = http://point-at-infinity.org/ssss/;
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/tools/system/setserial/default.nix b/pkgs/tools/system/setserial/default.nix
index 959334f4cc5..d6e8f4f1bb9 100644
--- a/pkgs/tools/system/setserial/default.nix
+++ b/pkgs/tools/system/setserial/default.nix
@@ -22,5 +22,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Serial port configuration utility";
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/tools/text/shfmt/default.nix b/pkgs/tools/text/shfmt/default.nix
index fe699b35590..2ab568ba841 100644
--- a/pkgs/tools/text/shfmt/default.nix
+++ b/pkgs/tools/text/shfmt/default.nix
@@ -21,5 +21,6 @@ buildGoPackage rec {
       shfmt formats shell programs. It can use tabs or any number of spaces to indent.
       You can feed it standard input, any number of files or any number of directories to recurse into.
     '';
+    license = licenses.bsd3;
   };
 }
diff --git a/pkgs/tools/typesetting/xmlroff/default.nix b/pkgs/tools/typesetting/xmlroff/default.nix
index 2177937221a..f8b0ddbfac5 100644
--- a/pkgs/tools/typesetting/xmlroff/default.nix
+++ b/pkgs/tools/typesetting/xmlroff/default.nix
@@ -41,5 +41,6 @@ stdenv.mkDerivation rec {
 
   meta = {
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.bsd3;
   };
 }
diff --git a/pkgs/tools/video/vnc2flv/default.nix b/pkgs/tools/video/vnc2flv/default.nix
index 32cf2771b51..561c8cf7d78 100644
--- a/pkgs/tools/video/vnc2flv/default.nix
+++ b/pkgs/tools/video/vnc2flv/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, pythonPackages }:
+{ stdenv, fetchurl, pythonPackages }:
 
 pythonPackages.buildPythonApplication rec {
   name = "vnc2flv-20100207";
@@ -15,5 +15,6 @@ pythonPackages.buildPythonApplication rec {
   meta = {
     description = "Tool to record VNC sessions to Flash Video";
     homepage = http://www.unixuser.org/~euske/python/vnc2flv/;
+    license = stdenv.lib.licenses.mit;
   };
 }
diff --git a/pkgs/tools/video/vncrec/default.nix b/pkgs/tools/video/vncrec/default.nix
index 162a1b6d5a4..7efcf6cbf83 100644
--- a/pkgs/tools/video/vncrec/default.nix
+++ b/pkgs/tools/video/vncrec/default.nix
@@ -27,5 +27,6 @@ stdenv.mkDerivation rec {
     description = "VNC recorder";
     homepage = http://ronja.twibright.com/utils/vncrec/;
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2;
   };
 }