diff --git a/pkgs/development/libraries/libassuan/default.nix b/pkgs/development/libraries/libassuan/default.nix
index 90ee45865ed4..63bee27da78c 100644
--- a/pkgs/development/libraries/libassuan/default.nix
+++ b/pkgs/development/libraries/libassuan/default.nix
@@ -24,5 +24,6 @@ stdenv.mkDerivation rec {
 
     homepage = http://gnupg.org;
     license = "LGPLv2+";
+    platforms = stdenv.lib.platforms.all;
   };
 }
diff --git a/pkgs/development/libraries/libgcrypt/default.nix b/pkgs/development/libraries/libgcrypt/default.nix
index ffe7abf2877a..d705bd80bdc2 100644
--- a/pkgs/development/libraries/libgcrypt/default.nix
+++ b/pkgs/development/libraries/libgcrypt/default.nix
@@ -32,5 +32,6 @@ stdenv.mkDerivation rec {
     license = "LGPLv2+";
 
     homepage = http://gnupg.org/;
+    platforms = stdenv.lib.platforms.all;
   };
 }
diff --git a/pkgs/development/libraries/libgpg-error/default.nix b/pkgs/development/libraries/libgpg-error/default.nix
index 3a72bc802afb..f167ecbc2ad9 100644
--- a/pkgs/development/libraries/libgpg-error/default.nix
+++ b/pkgs/development/libraries/libgpg-error/default.nix
@@ -23,5 +23,6 @@ stdenv.mkDerivation rec {
     homepage = http://gnupg.org;
 
     license = "LGPLv2+";
-  };    
+    platforms = stdenv.lib.platforms.all;
+  };
 }
diff --git a/pkgs/development/libraries/pth/default.nix b/pkgs/development/libraries/pth/default.nix
index be219f1f2881..ffd81f84489d 100644
--- a/pkgs/development/libraries/pth/default.nix
+++ b/pkgs/development/libraries/pth/default.nix
@@ -11,5 +11,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "The GNU Portable Threads library";
     homepage = http://www.gnu.org/software/pth;
+    platforms = stdenv.lib.platforms.all;
   };
 }