diff --git a/pkgs/development/libraries/wiredtiger/default.nix b/pkgs/development/libraries/wiredtiger/default.nix
index 9d11b98b1cbd..c905c40cf960 100644
--- a/pkgs/development/libraries/wiredtiger/default.nix
+++ b/pkgs/development/libraries/wiredtiger/default.nix
@@ -15,7 +15,7 @@ let
   mkWith = mkFlag "with-" "without-";
   mkOther = mkFlag "" "" true;
 
-  shouldUsePkg = pkg: if pkg != null && any (x: x == stdenv.system) pkg.meta.platforms then pkg else null;
+  shouldUsePkg = pkg: if pkg != null && pkg.meta.available then pkg else null;
 
   optLz4 = shouldUsePkg lz4;
   optSnappy = shouldUsePkg snappy;
diff --git a/pkgs/misc/jackaudio/default.nix b/pkgs/misc/jackaudio/default.nix
index a242f0261c77..0ed0246a8813 100644
--- a/pkgs/misc/jackaudio/default.nix
+++ b/pkgs/misc/jackaudio/default.nix
@@ -15,7 +15,7 @@
 with stdenv.lib;
 let
   inherit (python2Packages) python dbus-python;
-  shouldUsePkg = pkg: if pkg != null && stdenv.lib.any (x: x == stdenv.system) pkg.meta.platforms then pkg else null;
+  shouldUsePkg = pkg: if pkg != null && pkg.meta.available then pkg else null;
 
   libOnly = prefix == "lib";
 
diff --git a/pkgs/misc/jackaudio/jack1.nix b/pkgs/misc/jackaudio/jack1.nix
index 28ce85bd8a3f..43d23dd525ae 100644
--- a/pkgs/misc/jackaudio/jack1.nix
+++ b/pkgs/misc/jackaudio/jack1.nix
@@ -5,7 +5,7 @@
 }:
 
 let
-  shouldUsePkg = pkg: if pkg != null && stdenv.lib.any (x: x == stdenv.system) pkg.meta.platforms then pkg else null;
+  shouldUsePkg = pkg: if pkg != null && pkg.meta.available then pkg else null;
 
   optAlsaLib = shouldUsePkg alsaLib;
   optDb = shouldUsePkg db;
diff --git a/pkgs/os-specific/linux/ffado/default.nix b/pkgs/os-specific/linux/ffado/default.nix
index 4e2d2b388419..4e3e373d244c 100644
--- a/pkgs/os-specific/linux/ffado/default.nix
+++ b/pkgs/os-specific/linux/ffado/default.nix
@@ -11,7 +11,7 @@
 
 let
 
-  shouldUsePkg = pkg: if pkg != null && stdenv.lib.any (x: x == stdenv.system) pkg.meta.platforms then pkg else null;
+  shouldUsePkg = pkg: if pkg != null && pkg.meta.available then pkg else null;
 
   libOnly = prefix == "lib";
 
diff --git a/pkgs/servers/shishi/default.nix b/pkgs/servers/shishi/default.nix
index 535571f46e20..1540a6f1fd18 100644
--- a/pkgs/servers/shishi/default.nix
+++ b/pkgs/servers/shishi/default.nix
@@ -14,7 +14,7 @@ let
   mkWith = mkFlag "with-" "without-";
   mkOther = mkFlag "" "" true;
 
-  shouldUsePkg = pkg: if pkg != null && stdenv.lib.any (x: x == stdenv.system) pkg.meta.platforms then pkg else null;
+  shouldUsePkg = pkg: if pkg != null && pkg.meta.available then pkg else null;
 
   optPam = shouldUsePkg pam;
   optLibidn = shouldUsePkg libidn;
diff --git a/pkgs/tools/filesystems/ceph/generic.nix b/pkgs/tools/filesystems/ceph/generic.nix
index 32b85eaa6815..3d35a10f3b3b 100644
--- a/pkgs/tools/filesystems/ceph/generic.nix
+++ b/pkgs/tools/filesystems/ceph/generic.nix
@@ -37,8 +37,7 @@ with stdenv.lib;
 let
 
   shouldUsePkg = pkg_: let pkg = (builtins.tryEval pkg_).value;
-    in if lib.any (x: x == system) (pkg.meta.platforms or [])
-      then pkg else null;
+    in if pkg.meta.available or false then pkg else null;
 
   optYasm = shouldUsePkg yasm;
   optFcgi = shouldUsePkg fcgi;