diff --git a/pkgs/applications/misc/airspy/default.nix b/pkgs/applications/misc/airspy/default.nix
index 9b6771a3925b..2042f1047b22 100644
--- a/pkgs/applications/misc/airspy/default.nix
+++ b/pkgs/applications/misc/airspy/default.nix
@@ -28,7 +28,7 @@ in
     meta = with stdenv.lib; {
       homepage = https://github.com/airspy/airspyone_host;
       description = "Host tools and driver library for the AirSpy SDR";
-      license = licenses.free;
+      license = licenses.bsd3;
       platforms = with platforms; linux ++ darwin;
       maintainers = with maintainers; [ markuskowa ];
     };
diff --git a/pkgs/development/libraries/grantlee/5/default.nix b/pkgs/development/libraries/grantlee/5/default.nix
index aa670cd4c86b..52c087b19147 100644
--- a/pkgs/development/libraries/grantlee/5/default.nix
+++ b/pkgs/development/libraries/grantlee/5/default.nix
@@ -46,6 +46,7 @@ mkDerivation rec {
 
     homepage = http://gitorious.org/grantlee;
     maintainers = [ maintainers.ttuegel ];
+    license = licenses.lgpl21;
     inherit (qtbase.meta) platforms;
   };
 }
diff --git a/pkgs/development/libraries/grantlee/default.nix b/pkgs/development/libraries/grantlee/default.nix
index 9dde67b5c795..1446e339745e 100644
--- a/pkgs/development/libraries/grantlee/default.nix
+++ b/pkgs/development/libraries/grantlee/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
       and the design of Django is reused in Grantlee.'';
 
     homepage = http://gitorious.org/grantlee;
-    maintainers = [ ];
+    license = stdenv.lib.licenses.lgpl21;
     inherit (qt4.meta) platforms;
   };
 }
diff --git a/pkgs/development/libraries/gstreamer/qt-gstreamer/default.nix b/pkgs/development/libraries/gstreamer/qt-gstreamer/default.nix
index a9e7f9fcff3e..a099643061a1 100644
--- a/pkgs/development/libraries/gstreamer/qt-gstreamer/default.nix
+++ b/pkgs/development/libraries/gstreamer/qt-gstreamer/default.nix
@@ -25,7 +25,8 @@ stdenv.mkDerivation rec {
 
   cmakeFlags = "-DUSE_QT_PLUGIN_DIR=OFF -DUSE_GST_PLUGIN_DIR=OFF";
 
-  meta = {
-    platforms = stdenv.lib.platforms.linux;
+  meta = with stdenv.lib; {
+    platforms = platforms.linux;
+    license = licenses.lgpl21;
   };
 }
diff --git a/pkgs/development/libraries/gtk-sharp-beans/default.nix b/pkgs/development/libraries/gtk-sharp-beans/default.nix
index b92bbf64514e..7f35f088da2b 100644
--- a/pkgs/development/libraries/gtk-sharp-beans/default.nix
+++ b/pkgs/development/libraries/gtk-sharp-beans/default.nix
@@ -18,7 +18,8 @@ stdenv.mkDerivation rec {
   dontStrip = true;
 
   meta = with stdenv.lib; {
-    description = "gtk-sharp-beans binds some API from Gtk+ that isn't in Gtk# 2.12.x";
+    description = "Binds some API from Gtk+ that isn't in Gtk# 2.12.x";
     platforms = platforms.linux;
+    license = licenses.lgpl21;
   };
 }
diff --git a/pkgs/development/libraries/gtk-sharp/2.0.nix b/pkgs/development/libraries/gtk-sharp/2.0.nix
index 5b3ca828a3f8..c037db97c044 100644
--- a/pkgs/development/libraries/gtk-sharp/2.0.nix
+++ b/pkgs/development/libraries/gtk-sharp/2.0.nix
@@ -46,7 +46,10 @@ stdenv.mkDerivation {
     gtk = gtk2;
   };
 
-  meta = {
-    platforms = stdenv.lib.platforms.linux;
+  meta = with stdenv.lib; {
+    description = "Graphical User Interface Toolkit for mono and .Net";
+    homepage = https://www.mono-project.com/docs/gui/gtksharp;
+    platforms = platforms.linux;
+    license = licenses.gpl2;
   };
 }
diff --git a/pkgs/development/libraries/gtkspell/default.nix b/pkgs/development/libraries/gtkspell/default.nix
index 22094f3a3f64..14676be0dcb9 100644
--- a/pkgs/development/libraries/gtkspell/default.nix
+++ b/pkgs/development/libraries/gtkspell/default.nix
@@ -2,16 +2,19 @@
 
 stdenv.mkDerivation {
   name = "gtkspell-2.0.16";
-  
+
   src = fetchurl {
     url = mirror://sourceforge/gtkspell/gtkspell-2.0.16.tar.gz;
     sha256 = "00hdv28bp72kg1mq2jdz1sdw2b8mb9iclsp7jdqwpck705bdriwg";
   };
-  
+
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [aspell gtk2 enchant intltool];
 
-  meta = {
-    platforms = stdenv.lib.platforms.unix;
+  meta = with stdenv.lib; {
+    description = "Word-processor-style highlighting and replacement of misspelled words";
+    homepage = http://gtkspell.sourceforge.net;
+    platforms = platforms.unix;
+    license = licenses.gpl2;
   };
 }
diff --git a/pkgs/development/libraries/hspell/default.nix b/pkgs/development/libraries/hspell/default.nix
index 20dda589b9cc..9d2088808c13 100644
--- a/pkgs/development/libraries/hspell/default.nix
+++ b/pkgs/development/libraries/hspell/default.nix
@@ -18,10 +18,10 @@ stdenv.mkDerivation rec {
   patchPhase = ''patchShebangs .'';
   buildInputs = [ perl zlib ];
 
-  meta = {
+  meta = with stdenv.lib; {
     description = "Hebrew spell checker";
     homepage = http://hspell.ivrix.org.il/;
-    platforms = stdenv.lib.platforms.all;
-    maintainers = [ ];
+    platforms = platforms.all;
+    license = licenses.gpl2;
   };
 }
diff --git a/pkgs/development/libraries/hunspell/default.nix b/pkgs/development/libraries/hunspell/default.nix
index b3914a4438b3..62c3d79cf9a1 100644
--- a/pkgs/development/libraries/hunspell/default.nix
+++ b/pkgs/development/libraries/hunspell/default.nix
@@ -48,6 +48,7 @@ stdenv.mkDerivation rec {
         * Delphi, Java (JNA, JNI), Perl, .NET, Python, Ruby ([1], [2]), UNO.
     '';
     platforms = platforms.all;
+    license = with licenses; [ gpl2 lgpl21 mpl11 ];
     maintainers = with stdenv.lib.maintainers; [ fuuzetsu ];
   };
 }
diff --git a/pkgs/development/libraries/hyena/default.nix b/pkgs/development/libraries/hyena/default.nix
index f99aa0b6f0cf..516e4184623a 100644
--- a/pkgs/development/libraries/hyena/default.nix
+++ b/pkgs/development/libraries/hyena/default.nix
@@ -36,5 +36,6 @@ stdenv.mkDerivation rec {
     '';
     platforms = platforms.all;
     maintainers = with maintainers; [ obadz ];
+    license = licenses.mit;
   };
 }
diff --git a/pkgs/development/libraries/id3lib/default.nix b/pkgs/development/libraries/id3lib/default.nix
index dda1435c1dac..ddce76b10f72 100644
--- a/pkgs/development/libraries/id3lib/default.nix
+++ b/pkgs/development/libraries/id3lib/default.nix
@@ -17,7 +17,10 @@ stdenv.mkDerivation {
 
   doCheck = false; # fails to compile
 
-  meta = {
-    platforms = stdenv.lib.platforms.unix;
+  meta = with stdenv.lib; {
+    description = "Library for reading, writing, and manipulating ID3v1 and ID3v2 tags";
+    homepage = http://id3lib.sourceforge.net;
+    platforms = platforms.unix;
+    license = licenses.lgpl2;
   };
 }