treewide: Add lots of platforms to packages with no meta

Build-tested on x86_64 Linux and on Darwin.

pkgs/development/tools/build-managers/gnumake/3.80/default.nix

@@ -7,4 +7,8 @@ stdenv.mkDerivation {
     md5 = "0bbd1df101bc0294d440471e50feca71";
   };
   patches = [./log.patch];
+
+  meta = {
+    platforms = stdenv.lib.platforms.unix;
+  };
 }

pkgs/development/tools/build-managers/gnustep/make/default.nix

@@ -31,4 +31,8 @@ stdenv.mkDerivation rec {
       . $out/Library/GNUstep/Makefiles/GNUstep.sh
     EOF
   '';
+
+  meta = {
+    platforms = stdenv.lib.platforms.unix;
+  };
 }

pkgs/development/tools/build-managers/mk/default.nix

@@ -7,4 +7,8 @@ stdenv.mkDerivation {
     md5 = "167fd4e0eea4f49def01984ec203289b";
   };
   builder = ./builder.sh;
+
+  meta = {
+    platforms = stdenv.lib.platforms.unix;
+  };
 }

pkgs/development/tools/literate-programming/noweb/default.nix

@@ -22,4 +22,8 @@ stdenv.mkDerivation {
     done
   '';
   patches = [ ./no-FAQ.patch ];
+
+  meta = {
+    platforms = stdenv.lib.platforms.linux;
+  };
 }

pkgs/development/tools/misc/sqitch/default.nix

@@ -16,4 +16,8 @@ stdenv.mkDerivation {
   '';
   dontStrip = true;
   postFixup = "wrapProgram $out/bin/sqitch --prefix PERL5LIB : $PERL5LIB";
+
+  meta = {
+    platforms = stdenv.lib.platforms.unix;
+  };
 }