skk-dicts: fix cross

pkgs/tools/inputmethods/skk/skk-dicts/default.nix

@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, libiconv, skktools }:
+{ lib, stdenv, fetchurl, buildPackages, libiconv, skktools }:
 
 let
   # kana to kanji
@@ -33,6 +33,8 @@ stdenv.mkDerivation {
   srcs = [ small medium large edict assoc ];
   nativeBuildInputs = [ skktools ] ++ lib.optional stdenv.isDarwin libiconv;
 
+  strictDeps = true;
+
   dontUnpack = true;
 
   installPhase = ''
@@ -47,14 +49,14 @@ stdenv.mkDerivation {
     for src in $srcs; do
       dst=$out/share/$(dictname $src)
       echo ";;; -*- coding: utf-8 -*-" > $dst  # libskk requires this on the first line
-      iconv -f EUC-JP -t UTF-8 $src |\
-        ${skktools}/bin/skkdic-expr2 >> $dst
+      ${lib.getBin buildPackages.stdenv.cc.libc}/bin/iconv \
+        -f EUC-JP -t UTF-8 $src | skkdic-expr2 >> $dst
     done
 
     # combine .L .edict and .assoc for convenience
     dst=$out/share/SKK-JISYO.combined
     echo ";;; -*- coding: utf-8 -*-" > $dst
-    ${skktools}/bin/skkdic-expr2 \
+    skkdic-expr2 \
       $out/share/$(dictname ${large}) + \
       $out/share/$(dictname ${edict}) + \
       $out/share/$(dictname ${assoc}) >> $dst