Turn some license strings into lib.licenses values

45 files changed, 46 insertions, 48 deletions

diff --git a/pkgs/applications/networking/browsers/elinks/default.nix b/pkgs/applications/networking/browsers/elinks/default.nix
index 61db2656a4093..0e4fd4db1ba8a 100644
--- a/pkgs/applications/networking/browsers/elinks/default.nix
+++ b/pkgs/applications/networking/browsers/elinks/default.nix
@@ -43,6 +43,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Full-featured text-mode web browser";
     homepage = http://elinks.or.cz;
-    license = "GPLv2";
+    license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer-11/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer-11/default.nix
index 617d307b78355..d39dfe3582e98 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer-11/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer-11/default.nix
@@ -89,6 +89,6 @@ stdenv.mkDerivation {
     description = "Adobe Flash Player browser plugin";
     homepage = http://www.adobe.com/products/flashplayer/;
     maintainers = with stdenv.lib.maintainers; [ wizeman ];
-    license = "unfree";
+    license = stdenv.lib.licenses.unfree;
   };
 }
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix
index e1bc4e977f6a0..afe0600d6f7e5 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix
@@ -109,7 +109,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     homepage = http://www.google.com/chat/video/;
-    license = "unfree";
+    license = stdenv.lib.licenses.unfree;
     maintainers = [ stdenv.lib.maintainers.eelco ];
   };
 }
diff --git a/pkgs/applications/networking/browsers/netsurf/default.nix b/pkgs/applications/networking/browsers/netsurf/default.nix
index cf01a3c6d5f59..07184bfd9f2cf 100644
--- a/pkgs/applications/networking/browsers/netsurf/default.nix
+++ b/pkgs/applications/networking/browsers/netsurf/default.nix
@@ -42,7 +42,7 @@ rec {
     meta = { 
       description = "HTML5 compliant parsing library, written in C";
       homepage = http://www.netsurf-browser.org/projects/hubbub/;
-      license = "MIT";
+      license = stdenv.lib.licenses.mit;
       maintainers = [lib.maintainers.marcweber];
       platforms = lib.platforms.linux;
     };
@@ -63,7 +63,7 @@ rec {
     meta = { 
       description = "implementation of the W3C DOM, written in C";
       homepage = http://www.netsurf-browser.org/projects/hubbub/;
-      license = "MIT";
+      license = stdenv.lib.licenses.mit;
       maintainers = [lib.maintainers.marcweber];
       platforms = lib.platforms.linux;
     };
diff --git a/pkgs/applications/networking/browsers/netsurf/libCSS.nix b/pkgs/applications/networking/browsers/netsurf/libCSS.nix
index 7ad39ee4ec9cc..ede053aeca3fe 100644
--- a/pkgs/applications/networking/browsers/netsurf/libCSS.nix
+++ b/pkgs/applications/networking/browsers/netsurf/libCSS.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   meta = { 
     description = "libCSS is a CSS parser and selection engine, written in C"; # used by netsurf
     homepage = http://www.netsurf-browser.org/projects/libcss/;
-    license = "MIT";
+    license = stdenv.lib.licenses.mit;
     maintainers = [args.lib.maintainers.marcweber];
     platforms = args.lib.platforms.linux;
   };
diff --git a/pkgs/applications/networking/browsers/netsurf/libParserUtils.nix b/pkgs/applications/networking/browsers/netsurf/libParserUtils.nix
index fec93c39ab9de..32bede76e432d 100644
--- a/pkgs/applications/networking/browsers/netsurf/libParserUtils.nix
+++ b/pkgs/applications/networking/browsers/netsurf/libParserUtils.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   meta = { 
     description = "LibParserUtils is a library for building efficient parsers, written in C";
     homepage = http://www.netsurf-browser.org/projects/libparserutils/;
-    license = "MIT";
+    license = stdenv.lib.licenses.mit;
     maintainers = [args.lib.maintainers.marcweber];
     platforms = args.lib.platforms.linux;
     broken = true;
diff --git a/pkgs/applications/networking/browsers/netsurf/libnsbmp.nix b/pkgs/applications/networking/browsers/netsurf/libnsbmp.nix
index 462d532cb9c4f..9c16ff9b89c50 100644
--- a/pkgs/applications/networking/browsers/netsurf/libnsbmp.nix
+++ b/pkgs/applications/networking/browsers/netsurf/libnsbmp.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   meta = { 
     description = "Libnsbmp is a decoding library for BMP and ICO image file formats"; # used by netsurf
     homepage = http://www.netsurf-browser.org/projects/libnsbmp/;
-    license = "MIT";
+    license = stdenv.lib.licenses.mit;
     maintainers = [args.lib.maintainers.marcweber];
     platforms = args.lib.platforms.linux;
   };
diff --git a/pkgs/applications/networking/browsers/netsurf/libnsgif.nix b/pkgs/applications/networking/browsers/netsurf/libnsgif.nix
index 5894e5c1c0335..a4502d2354deb 100644
--- a/pkgs/applications/networking/browsers/netsurf/libnsgif.nix
+++ b/pkgs/applications/networking/browsers/netsurf/libnsgif.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   meta = {
     description = "Libnsbmp is a decoding library for gif image file formats"; # used by netsurf
     homepage = http://www.netsurf-browser.org/projects/libnsgif/;
-    license = "MIT";
+    license = stdenv.lib.licenses.mit;
     maintainers = [args.lib.maintainers.marcweber];
     platforms = args.lib.platforms.linux;
     broken = true;
diff --git a/pkgs/applications/networking/browsers/netsurf/libsvgtiny.nix b/pkgs/applications/networking/browsers/netsurf/libsvgtiny.nix
index a90e6fa193cd8..300e9965092d1 100644
--- a/pkgs/applications/networking/browsers/netsurf/libsvgtiny.nix
+++ b/pkgs/applications/networking/browsers/netsurf/libsvgtiny.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   meta = { 
     description = "implementation of SVG Tiny, written in C";
     homepage = http://www.netsurf-browser.org/projects/libsvgtiny/;
-    license = "MIT";
+    license = stdenv.lib.licenses.mit;
     maintainers = [args.lib.maintainers.marcweber];
     platforms = args.lib.platforms.linux;
   };
diff --git a/pkgs/applications/networking/browsers/netsurf/libwapcaplet.nix b/pkgs/applications/networking/browsers/netsurf/libwapcaplet.nix
index c4e4a60fbd689..8d19d1c1ef24d 100644
--- a/pkgs/applications/networking/browsers/netsurf/libwapcaplet.nix
+++ b/pkgs/applications/networking/browsers/netsurf/libwapcaplet.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   meta = { 
     description = "LibWapcaplet is a string internment library, written in C";
     homepage = http://www.netsurf-browser.org/projects/libwapcaplet/;
-    license = "MIT";
+    license = stdenv.lib.licenses.mit;
     maintainers = [args.lib.maintainers.marcweber];
     platforms = args.lib.platforms.linux;
   };
diff --git a/pkgs/applications/networking/ids/daq/default.nix b/pkgs/applications/networking/ids/daq/default.nix
index 92175bb23e9c9..36571809a3708 100644
--- a/pkgs/applications/networking/ids/daq/default.nix
+++ b/pkgs/applications/networking/ids/daq/default.nix
@@ -14,6 +14,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Data AcQuisition library (DAQ), for packet I/O";
     homepage = http://www.snort.org;
-    license = "GPLv2";
+    license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/applications/networking/ids/snort/default.nix b/pkgs/applications/networking/ids/snort/default.nix
index b674f3a83fb29..858e99c245bad 100644
--- a/pkgs/applications/networking/ids/snort/default.nix
+++ b/pkgs/applications/networking/ids/snort/default.nix
@@ -14,6 +14,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Snort is an open source network intrusion prevention and detection system (IDS/IPS)";
     homepage = http://www.snort.org;
-    license = "GPLv2";
+    license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/bitlbee/default.nix b/pkgs/applications/networking/instant-messengers/bitlbee/default.nix
index 457d3441b3ab7..ec614bf4b8c1e 100644
--- a/pkgs/applications/networking/instant-messengers/bitlbee/default.nix
+++ b/pkgs/applications/networking/instant-messengers/bitlbee/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
     '';
 
     homepage = http://www.bitlbee.org/;
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
 
     maintainers = [ stdenv.lib.maintainers.ludo ];
     platforms = stdenv.lib.platforms.gnu;  # arbitrary choice
diff --git a/pkgs/applications/networking/instant-messengers/centerim/default.nix b/pkgs/applications/networking/instant-messengers/centerim/default.nix
index d746d54974afe..54e2d813be8ac 100644
--- a/pkgs/applications/networking/instant-messengers/centerim/default.nix
+++ b/pkgs/applications/networking/instant-messengers/centerim/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   meta = {
     homepage = http://www.centerim.org/;
     description = "Fork of CenterICQ, a curses instant messaging program";
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
     platforms = with stdenv.lib.platforms; linux;
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/gtmess/default.nix b/pkgs/applications/networking/instant-messengers/gtmess/default.nix
index 68973b4e47f54..64021c93bc83c 100644
--- a/pkgs/applications/networking/instant-messengers/gtmess/default.nix
+++ b/pkgs/applications/networking/instant-messengers/gtmess/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation {
   meta = {
     description = "Console MSN Messenger client for Linux and other unix systems";
     homepage = http://gtmess.sourceforge.net/;
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
     platforms = with stdenv.lib.platforms; linux;
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/kadu/default.nix b/pkgs/applications/networking/instant-messengers/kadu/default.nix
index 4e176ec56dcba..be24878259fbf 100644
--- a/pkgs/applications/networking/instant-messengers/kadu/default.nix
+++ b/pkgs/applications/networking/instant-messengers/kadu/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation {
   meta = {
     description = "An instant-messenger client for the gadu-gadu network (most popular polish IM network)";
     homepage = http://www.kadu.net/w/English:Main_Page;
-    license = "GPLv2";
+    license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.piotr ];
   };
diff --git a/pkgs/applications/networking/instant-messengers/linphone/default.nix b/pkgs/applications/networking/instant-messengers/linphone/default.nix
index c3af0ad0e3406..be12c7e8e2ae2 100644
--- a/pkgs/applications/networking/instant-messengers/linphone/default.nix
+++ b/pkgs/applications/networking/instant-messengers/linphone/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   meta = {
     homepage = http://www.linphone.org/;
     description = "Open Source video SIP softphone";
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.gnu;
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/otr/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/otr/default.nix
index cf42dd5700ba8..7cbc38ea0dc0d 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/otr/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/otr/default.nix
@@ -14,6 +14,6 @@ stdenv.mkDerivation rec {
   meta = {
     homepage = http://www.cypherpunks.ca/otr;
     description = "Plugin for Pidgin 2.x which implements OTR Messaging";
-    license = "GPLv2";
+    license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/skype4pidgin/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/skype4pidgin/default.nix
index 544aa06877ad2..6402e7154de4a 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/skype4pidgin/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/skype4pidgin/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     homepage = https://github.com/novas0x2a/skype4pidgin;
-    license = "GPLv3+";
+    license = stdenv.lib.licenses.gpl3Plus;
     description = "Plugin to use a running skype account through pidgin";
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/tox-prpl/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/tox-prpl/default.nix
index b87db662f45e2..348802fe16eb7 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/tox-prpl/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/tox-prpl/default.nix
@@ -24,6 +24,6 @@ stdenv.mkDerivation rec {
   meta = {
     homepage = http://tox.dhs.org/;
     description = "Tox plugin for Pidgin / libpurple";
-    license = "GPLv3";
+    license = stdenv.lib.licenses.gpl3;
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/sflphone/default.nix b/pkgs/applications/networking/instant-messengers/sflphone/default.nix
index a31a682abf889..fb14782ef9f61 100644
--- a/pkgs/applications/networking/instant-messengers/sflphone/default.nix
+++ b/pkgs/applications/networking/instant-messengers/sflphone/default.nix
@@ -14,7 +14,7 @@ let
 
   meta = {
     homepage = http://sflphone.org/;
-    license = "GPLv3+";
+    license = stdenv.lib.licenses.gpl3Plus;
     description = "Free software enterprise-class softphone for GNU/Linux";
     platforms = with stdenv.lib.platforms; linux;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/networking/instant-messengers/silc-client/default.nix b/pkgs/applications/networking/instant-messengers/silc-client/default.nix
index a4035604168f3..4ce098e6ca465 100644
--- a/pkgs/applications/networking/instant-messengers/silc-client/default.nix
+++ b/pkgs/applications/networking/instant-messengers/silc-client/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation {
   meta = {
     homepage = http://silcnet.org/;
     description = "Secure Internet Live Conferencing server";
-    license = "GPLv2";
+    license = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [viric];
     platforms = with stdenv.lib.platforms; linux;
   };
diff --git a/pkgs/applications/networking/instant-messengers/skype-call-recorder/default.nix b/pkgs/applications/networking/instant-messengers/skype-call-recorder/default.nix
index 2fa82e1251bc7..713aa8f03744c 100644
--- a/pkgs/applications/networking/instant-messengers/skype-call-recorder/default.nix
+++ b/pkgs/applications/networking/instant-messengers/skype-call-recorder/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
   meta = {
     homepage = http://atdot.ch/scr/;
     description = "Open source tool to record your Skype calls on Linux";
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
     platforms = with stdenv.lib.platforms; linux;
     maintainers = with stdenv.lib.maintainers; [viric];
   };
diff --git a/pkgs/applications/networking/instant-messengers/skype/default.nix b/pkgs/applications/networking/instant-messengers/skype/default.nix
index f1ac106393443..32755306cc76f 100644
--- a/pkgs/applications/networking/instant-messengers/skype/default.nix
+++ b/pkgs/applications/networking/instant-messengers/skype/default.nix
@@ -66,6 +66,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "A proprietary voice-over-IP (VoIP) client";
     homepage = http://www.skype.com/;
-    license = "unfree";
+    license = stdenv.lib.licenses.unfree;
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/telegram-cli/default.nix b/pkgs/applications/networking/instant-messengers/telegram-cli/default.nix
index 51639f6050dcd..b0302ba8e0bf2 100644
--- a/pkgs/applications/networking/instant-messengers/telegram-cli/default.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram-cli/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Command-line interface for Telegram messenger";
     homepage = https://telegram.org/;
-    license = "GPLv2";
+    license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/toxic/default.nix b/pkgs/applications/networking/instant-messengers/toxic/default.nix
index ded2bbf92500e..4527d981a9f05 100644
--- a/pkgs/applications/networking/instant-messengers/toxic/default.nix
+++ b/pkgs/applications/networking/instant-messengers/toxic/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Reference CLI for Tox";
-    license = "GPLv3+";
+    license = stdenv.lib.licenses.gpl3Plus;
     maintainers = with stdenv.lib.maintainers; [ viric ];
     platforms = stdenv.lib.platforms.all;
   };
diff --git a/pkgs/applications/networking/iptraf/default.nix b/pkgs/applications/networking/iptraf/default.nix
index f0a6dbbe7e77d..db1f2011f113e 100644
--- a/pkgs/applications/networking/iptraf/default.nix
+++ b/pkgs/applications/networking/iptraf/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     homepage = http://iptraf.seul.org/;
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
     description = "Console-based network statistics utility for Linux";
   };
 }
diff --git a/pkgs/applications/networking/irc/ii/default.nix b/pkgs/applications/networking/irc/ii/default.nix
index 537897c13b4a7..224f639cc1502 100644
--- a/pkgs/applications/networking/irc/ii/default.nix
+++ b/pkgs/applications/networking/irc/ii/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     homepage = http://tools.suckless.org/ii/;
-    license = "MIT";
+    license = stdenv.lib.licenses.mit;
     description = "Irc it, simple FIFO based irc client";
   };
 }
diff --git a/pkgs/applications/networking/irc/irssi/fish/default.nix b/pkgs/applications/networking/irc/irssi/fish/default.nix
index 98d5afa0ba9f0..eb21f34838e7a 100644
--- a/pkgs/applications/networking/irc/irssi/fish/default.nix
+++ b/pkgs/applications/networking/irc/irssi/fish/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   
   meta = {
     homepage = https://github.com/falsovsky/FiSH-irssi;
-    license = "unfree"; # I can't find any mention of license
+    license = stdenv.lib.licenses.unfree; # I can't find any mention of license
     maintainers = with stdenv.lib.maintainers; [viric];
   };
 }
diff --git a/pkgs/applications/networking/irc/irssi/otr/default.nix b/pkgs/applications/networking/irc/irssi/otr/default.nix
index 988320dd61fc7..4841aa8070e0a 100644
--- a/pkgs/applications/networking/irc/irssi/otr/default.nix
+++ b/pkgs/applications/networking/irc/irssi/otr/default.nix
@@ -25,6 +25,6 @@ stdenv.mkDerivation rec {
   
   meta = {
     homepage = https://github.com/cryptodotis/irssi-otr;
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/applications/networking/irc/quassel/default.nix b/pkgs/applications/networking/irc/quassel/default.nix
index 2a5be53619d78..432dbddb97c0e 100644
--- a/pkgs/applications/networking/irc/quassel/default.nix
+++ b/pkgs/applications/networking/irc/quassel/default.nix
@@ -55,10 +55,9 @@ in with stdenv; mkDerivation rec {
       combination of screen and a text-based IRC client such
       as WeeChat, but graphical (based on Qt4/KDE4).
     '';
-    license = "GPLv3";
+    license = stdenv.lib.licenses.gpl3;
     maintainers = [ maintainers.phreedom ];
     repositories.git = https://github.com/quassel/quassel.git;
     inherit (qt4.meta) platforms;
   };
 }
-
diff --git a/pkgs/applications/networking/mailreaders/mutt/default.nix b/pkgs/applications/networking/mailreaders/mutt/default.nix
index dbd5a41afd342..9c397f27c46f6 100644
--- a/pkgs/applications/networking/mailreaders/mutt/default.nix
+++ b/pkgs/applications/networking/mailreaders/mutt/default.nix
@@ -55,9 +55,8 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "A small but very powerful text-based mail client";
     homepage = http://www.mutt.org;
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
     platforms = platforms.unix;
     maintainers = with maintainers; [ the-kenny ];
   };
 }
-
diff --git a/pkgs/applications/networking/p2p/freenet/default.nix b/pkgs/applications/networking/p2p/freenet/default.nix
index 4c74c2c32de0a..013694d259cb7 100644
--- a/pkgs/applications/networking/p2p/freenet/default.nix
+++ b/pkgs/applications/networking/p2p/freenet/default.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation {
   meta = {
     description = "Decentralised and censorship-resistant network";
     homepage = https://freenetproject.org/;
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
     platforms = with stdenv.lib.platforms; linux;
   };
 }
diff --git a/pkgs/applications/networking/p2p/gnunet/default.nix b/pkgs/applications/networking/p2p/gnunet/default.nix
index bcd0eb503f60b..6c28840f7e5f2 100644
--- a/pkgs/applications/networking/p2p/gnunet/default.nix
+++ b/pkgs/applications/networking/p2p/gnunet/default.nix
@@ -73,7 +73,7 @@ stdenv.mkDerivation rec {
 
     homepage = http://gnunet.org/;
 
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
 
     maintainers = with stdenv.lib.maintainers; [ ludo viric ];
     platforms = stdenv.lib.platforms.gnu;
diff --git a/pkgs/applications/networking/p2p/gnunet/svn.nix b/pkgs/applications/networking/p2p/gnunet/svn.nix
index ed6c348706b97..25a51b3c9365f 100644
--- a/pkgs/applications/networking/p2p/gnunet/svn.nix
+++ b/pkgs/applications/networking/p2p/gnunet/svn.nix
@@ -85,7 +85,7 @@ stdenv.mkDerivation rec {
 
     homepage = http://gnunet.org/;
 
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
 
     maintainers = with stdenv.lib.maintainers; [ ludo viric ];
     platforms = stdenv.lib.platforms.gnu;
diff --git a/pkgs/applications/networking/p2p/tribler/default.nix b/pkgs/applications/networking/p2p/tribler/default.nix
index 5fa19c71d9a18..5bc228f9a6b9e 100644
--- a/pkgs/applications/networking/p2p/tribler/default.nix
+++ b/pkgs/applications/networking/p2p/tribler/default.nix
@@ -44,6 +44,6 @@ stdenv.mkDerivation {
   meta = {
     homepage = http://www.tribler.org/;
     description = "A completely decentralised P2P filesharing client based on the Bittorrent protocol";
-    license = "LGPLv2.1";
+    license = stdenv.lib.licenses.lgpl21;
   };
 }
diff --git a/pkgs/applications/networking/pjsip/default.nix b/pkgs/applications/networking/pjsip/default.nix
index 558394199f457..4d08e1cc60a14 100644
--- a/pkgs/applications/networking/pjsip/default.nix
+++ b/pkgs/applications/networking/pjsip/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "SIP stack and media stack for presence, im, and multimedia communication";
     homepage = http://pjsip.org/;
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [viric];
     platforms = with stdenv.lib.platforms; linux;
   };
diff --git a/pkgs/applications/networking/remote/remmina/default.nix b/pkgs/applications/networking/remote/remmina/default.nix
index 24bc20af6528c..8fb929d53e10d 100644
--- a/pkgs/applications/networking/remote/remmina/default.nix
+++ b/pkgs/applications/networking/remote/remmina/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    license = "GPLv2";
+    license = stdenv.lib.licenses.gpl2;
     homepage = "http://remmina.sourceforge.net/";
     description = "Remmina is a remote desktop client written in GTK+";
     maintainers = [];
diff --git a/pkgs/applications/networking/remote/ssvnc/default.nix b/pkgs/applications/networking/remote/ssvnc/default.nix
index 619925354f066..f142395aa57bc 100644
--- a/pkgs/applications/networking/remote/ssvnc/default.nix
+++ b/pkgs/applications/networking/remote/ssvnc/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "VNC viewer that adds encryption security to VNC connections";
     homepage = "http://www.karlrunge.com/x11vnc/ssvnc.html";
-    license = "GPLv2";
+    license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.edwtjo ];
     platforms = with stdenv.lib.platforms; linux;
   };
diff --git a/pkgs/applications/networking/remote/teamviewer/8.nix b/pkgs/applications/networking/remote/teamviewer/8.nix
index 440eb90390ae8..459ae9fab82b3 100644
--- a/pkgs/applications/networking/remote/teamviewer/8.nix
+++ b/pkgs/applications/networking/remote/teamviewer/8.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation {
 
   meta = {
     homepage = "http://www.teamviewer.com";
-    license = "unfree";
+    license = stdenv.lib.licenses.unfree;
     description = "Desktop sharing application, providing remote support and online meetings";
   };
 }
diff --git a/pkgs/applications/networking/remote/teamviewer/default.nix b/pkgs/applications/networking/remote/teamviewer/default.nix
index 6802782bcb5d9..65ddd7305c832 100644
--- a/pkgs/applications/networking/remote/teamviewer/default.nix
+++ b/pkgs/applications/networking/remote/teamviewer/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation {
 
   meta = {
     homepage = "http://www.teamviewer.com";
-    license = "unfree";
+    license = stdenv.lib.licenses.unfree;
     description = "Desktop sharing application, providing remote support and online meetings";
   };
 }
diff --git a/pkgs/applications/networking/sniffers/etherape/default.nix b/pkgs/applications/networking/sniffers/etherape/default.nix
index a51f65cbccb09..f5104665562d9 100644
--- a/pkgs/applications/networking/sniffers/etherape/default.nix
+++ b/pkgs/applications/networking/sniffers/etherape/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     homepage = http://etherape.sourceforge.net/;
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
     platforms = with stdenv.lib.platforms; linux;
   };
 }
diff --git a/pkgs/applications/networking/sync/unison/default.nix b/pkgs/applications/networking/sync/unison/default.nix
index 744c8c01efa5e..4ac5e8300ca8c 100644
--- a/pkgs/applications/networking/sync/unison/default.nix
+++ b/pkgs/applications/networking/sync/unison/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation (rec {
   meta = {
     homepage = http://www.cis.upenn.edu/~bcpierce/unison/;
     description = "Bidirectional file synchronizer";
-    license = "GPLv3+";
+    license = stdenv.lib.licenses.gpl3Plus;
     maintainers = with stdenv.lib.maintainers; [viric];
     platforms = with stdenv.lib.platforms; linux;
   };
diff --git a/pkgs/applications/networking/vnstat/default.nix b/pkgs/applications/networking/vnstat/default.nix
index 57afefd7dcdd1..6d4306044a41d 100644
--- a/pkgs/applications/networking/vnstat/default.nix
+++ b/pkgs/applications/networking/vnstat/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     homepage = http://humdi.net/vnstat/;
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
     description = "Console-based network statistics utility for Linux";
   };
 }
diff --git a/pkgs/applications/networking/yafc/default.nix b/pkgs/applications/networking/yafc/default.nix
index 752a7824e6f05..2e60b9aa3228c 100644
--- a/pkgs/applications/networking/yafc/default.nix
+++ b/pkgs/applications/networking/yafc/default.nix
@@ -13,6 +13,6 @@ stdenv.mkDerivation rec {
     description = "ftp/sftp client with readline, autocompletion and bookmarks";
     homepage = http://www.yafc-ftp.com;
     maintainers = [ stdenv.lib.maintainers.page ];
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }