nodejs: fix cross compilation

pkgs/development/web/nodejs/nodejs.nix

@@ -1,5 +1,5 @@
 { lib, stdenv, fetchurl, openssl, python, zlib, libuv, util-linux, http-parser
-, pkg-config, which
+, pkg-config, which, buildPackages
 # for `.pkgs` attribute
 , callPackage
 # Updater dependencies
@@ -50,6 +50,10 @@ let
       inherit sha256;
     };
 
+    CC_host = "cc";
+    CXX_host = "c++";
+    depsBuildBuild = [ buildPackages.stdenv.cc openssl libuv zlib ];
+
     buildInputs = optionals stdenv.isDarwin [ CoreServices ApplicationServices ]
       ++ [ zlib libuv openssl http-parser icu ];
 
@@ -69,12 +73,23 @@ let
       "--cross-compiling"
       "--without-intl"
       "--without-snapshot"
+      "--dest-cpu=${let platform = stdenv.hostPlatform; in
+                    if      platform.isAarch32 then "arm"
+                    else if platform.isAarch64 then "arm64"
+                    else if platform.isMips32 && platform.isLittleEndian then "mipsel"
+                    else if platform.isMips32 && !platform.isLittleEndian then "mips"
+                    else if platform.isMips64 && platform.isLittleEndian then "mips64el"
+                    else if platform.isPower && platform.is32bit then "ppc"
+                    else if platform.isPower && platform.is64bit then "ppc64"
+                    else if platform.isx86_64 then "x86_64"
+                    else if platform.isx86_32 then "x86"
+                    else if platform.isS390 && platform.is64bit then "s390x"
+                    else if platform.isRiscV && platform.is64bit then "riscv64"
+                    else throw "unsupported cpu ${stdenv.hostPlatform.uname.processor}"}"
     ]) ++ (optionals (isCross && isAarch32 && hasAttr "fpu" gcc) [
       "--with-arm-fpu=${gcc.fpu}"
     ]) ++ (optionals (isCross && isAarch32 && hasAttr "float-abi" gcc) [
       "--with-arm-float-abi=${gcc.float-abi}"
-    ]) ++ (optionals (isCross && isAarch32) [
-      "--dest-cpu=arm"
     ]) ++ extraConfigFlags;
 
     configurePlatforms = [];