fribidi: fix cross

Meson needs a native compiler to produce some binaries:

> gen.tab/meson.build:32:0: ERROR: No build machine compiler for "gen.tab/gen-unicode-version.c"

pkgs/development/libraries/fribidi/default.nix

@@ -1,4 +1,5 @@
 { stdenv
+, buildPackages
 , fetchurl
 , meson
 , ninja
@@ -26,6 +27,8 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ meson ninja pkgconfig ]
     ++ stdenv.lib.optional stdenv.isDarwin fixDarwinDylibNames;
 
+  depsBuildBuild = [ buildPackages.stdenv.cc ];
+
   doCheck = true;
   checkInputs = [ python3 ];