From 9f79ac6f3bbbdee1ea006c292a867184f3985c2c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bastian=20K=C3=B6cher?= <git@kchr.de>
Date: Tue, 15 May 2018 16:58:37 +0200
Subject: [PATCH 1/3] androidndk: Drop 32bit support

---
 pkgs/development/mobile/androidenv/androidndk.nix | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/pkgs/development/mobile/androidenv/androidndk.nix b/pkgs/development/mobile/androidenv/androidndk.nix
index 2fe4005532d4..a9908d67f1d2 100644
--- a/pkgs/development/mobile/androidenv/androidndk.nix
+++ b/pkgs/development/mobile/androidenv/androidndk.nix
@@ -6,16 +6,10 @@
 stdenv.mkDerivation rec {
   name = "android-ndk-r10e";
 
-  src = if stdenv.system == "i686-linux"
-    then fetchurl {
-      url = "http://dl.google.com/android/ndk/${name}-linux-x86.bin";
-      sha256 = "1xbxra5v3bm6cmxyx8yyya5r93jh5m064aibgwd396xdm8jpvc4j";
-    }
-    else if stdenv.system == "x86_64-linux" then fetchurl {
+  src = if stdenv.system == "x86_64-linux" then fetchurl {
       url = "http://dl.google.com/android/ndk/${name}-linux-x86_64.bin";
       sha256 = "0nhxixd0mq4ib176ya0hclnlbmhm8f2lab6i611kiwbzyqinfb8h";
-    }
-    else throw "platform ${stdenv.system} not supported!";
+    } else throw "platform ${stdenv.system} not supported!";
 
   phases = "buildPhase";
 

From c056694d74fe99c6a0657528fac73645680e0df8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bastian=20K=C3=B6cher?= <git@kchr.de>
Date: Tue, 15 May 2018 17:45:48 +0200
Subject: [PATCH 2/3] androidndk: Adds versions 17 and 16b

---
 .../mobile/androidenv/androidndk.nix          |  52 +++++---
 .../development/mobile/androidenv/default.nix |  26 +++-
 ...h => make-standalone-toolchain_r10e.patch} |   0
 .../make_standalone_toolchain.py_16b.patch    | 119 ++++++++++++++++++
 .../make_standalone_toolchain.py_17.patch     | 119 ++++++++++++++++++
 5 files changed, 296 insertions(+), 20 deletions(-)
 rename pkgs/development/mobile/androidenv/{make-standalone-toolchain.patch => make-standalone-toolchain_r10e.patch} (100%)
 create mode 100644 pkgs/development/mobile/androidenv/make_standalone_toolchain.py_16b.patch
 create mode 100644 pkgs/development/mobile/androidenv/make_standalone_toolchain.py_17.patch

diff --git a/pkgs/development/mobile/androidenv/androidndk.nix b/pkgs/development/mobile/androidenv/androidndk.nix
index a9908d67f1d2..d0bfe6c8100c 100644
--- a/pkgs/development/mobile/androidenv/androidndk.nix
+++ b/pkgs/development/mobile/androidenv/androidndk.nix
@@ -1,14 +1,14 @@
 { stdenv, fetchurl, zlib, ncurses, p7zip, lib, makeWrapper
 , coreutils, file, findutils, gawk, gnugrep, gnused, jdk, which
-, platformTools
+, platformTools, python3, version, sha256
 }:
 
 stdenv.mkDerivation rec {
-  name = "android-ndk-r10e";
+  name = "android-ndk-r${version}";
 
   src = if stdenv.system == "x86_64-linux" then fetchurl {
-      url = "http://dl.google.com/android/ndk/${name}-linux-x86_64.bin";
-      sha256 = "0nhxixd0mq4ib176ya0hclnlbmhm8f2lab6i611kiwbzyqinfb8h";
+      url = "https://dl.google.com/android/repository/${name}-linux-x86_64.zip";
+      inherit sha256;
     } else throw "platform ${stdenv.system} not supported!";
 
   phases = "buildPhase";
@@ -27,8 +27,7 @@ stdenv.mkDerivation rec {
     runtime_paths = (lib.makeBinPath [
       coreutils file findutils
       gawk gnugrep gnused
-      jdk
-      which
+      jdk python3 which
     ]) + ":${platformTools}/platform-tools";
   in ''
     set -x
@@ -38,9 +37,22 @@ stdenv.mkDerivation rec {
 
     # so that it doesn't fail because of read-only permissions set
     cd -
-    patch -p1 \
-        --no-backup-if-mismatch \
-        -d $out/libexec/${name} < ${ ./make-standalone-toolchain.patch }
+    ${if (version == "10e") then
+        ''
+          patch -p1 \
+            --no-backup-if-mismatch \
+            -d $out/libexec/${name} < ${ ./make-standalone-toolchain_r10e.patch }
+        ''
+      else
+        ''
+          patchShebangs ${pkg_path}/build/tools/make-standalone-toolchain.sh
+
+          patch -p1 \
+            --no-backup-if-mismatch \
+            -d $out/libexec/${name} < ${ ./. + builtins.toPath ("/make_standalone_toolchain.py_" + "${version}" + ".patch") }
+          wrapProgram ${pkg_path}/build/tools/make_standalone_toolchain.py --prefix PATH : "${runtime_paths}"
+        ''
+    }
     cd ${pkg_path}
 
     find $out \( \
@@ -49,29 +61,31 @@ stdenv.mkDerivation rec {
         \) -exec patchelf --set-interpreter ${stdenv.cc.libc.out}/lib/ld-*so.? \
                           --set-rpath ${stdenv.lib.makeLibraryPath [ zlib.out ncurses ]} {} \;
     # fix ineffective PROGDIR / MYNDKDIR determination
-    for i in ndk-build ndk-gdb ndk-gdb-py
+    for i in ndk-build ${lib.optionalString (version == "10e") "ndk-gdb ndk-gdb-py"}
     do
         sed -i -e ${sed_script_1} $i
     done
-    sed -i -e ${sed_script_2} ndk-which
-    # a bash script
-    patchShebangs ndk-which
+    ${lib.optionalString (version == "10e") ''
+      sed -i -e ${sed_script_2} ndk-which
+      # a bash script
+      patchShebangs ndk-which
+    ''}
     # wrap
-    for i in ndk-build ndk-gdb ndk-gdb-py ndk-which
+    for i in ndk-build ${lib.optionalString (version == "10e") "ndk-gdb ndk-gdb-py ndk-which"}
     do
         wrapProgram "$(pwd)/$i" --prefix PATH : "${runtime_paths}"
     done
     # make some executables available in PATH
     mkdir -pv ${bin_path}
     for i in \
-        ndk-build ndk-depends ndk-gdb ndk-gdb-py ndk-gdb.py ndk-stack ndk-which
+        ndk-build ${lib.optionalString (version == "10e") "ndk-depends ndk-gdb ndk-gdb-py ndk-gdb.py ndk-stack ndk-which"}
     do
         ln -sf ${pkg_path}/$i ${bin_path}/$i
     done
   '';
 
-    meta = {
-        platforms = stdenv.lib.platforms.linux;
-        hydraPlatforms = [];
-    };
+  meta = {
+    platforms = stdenv.lib.platforms.linux;
+    hydraPlatforms = [];
+  };
 }
diff --git a/pkgs/development/mobile/androidenv/default.nix b/pkgs/development/mobile/androidenv/default.nix
index b77cc68fa0e8..d122ffe241ea 100644
--- a/pkgs/development/mobile/androidenv/default.nix
+++ b/pkgs/development/mobile/androidenv/default.nix
@@ -215,13 +215,37 @@ rec {
     useInstantApps = true;
   };
 
+  androidndk_10e = import ./androidndk.nix {
+    inherit (buildPackages)
+      p7zip makeWrapper;
+    inherit (pkgs)
+      stdenv fetchurl zlib ncurses lib python3
+      coreutils file findutils gawk gnugrep gnused jdk which;
+    inherit platformTools;
+    version = "10e";
+    sha256 = "032j3sgk93bjbkny84i17ph61dhjmsax9ddqng1zbi2p7dgl0pzf";
+  };
+
+  androidndk_16b = import ./androidndk.nix {
+    inherit (buildPackages)
+      p7zip makeWrapper;
+    inherit (pkgs)
+      stdenv fetchurl zlib ncurses lib python3
+      coreutils file findutils gawk gnugrep gnused jdk which;
+    inherit platformTools;
+    version = "16b";
+    sha256 = "00frcnvpcsngv00p6l2vxj4cwi2mwcm9lnjvm3zv4wrp6pss9pmw";
+  };
+
   androidndk = import ./androidndk.nix {
     inherit (buildPackages)
       p7zip makeWrapper;
     inherit (pkgs)
-      stdenv fetchurl zlib ncurses lib
+      stdenv fetchurl zlib ncurses lib python3
       coreutils file findutils gawk gnugrep gnused jdk which;
     inherit platformTools;
+    version = "17";
+    sha256 = "1jj3zy958zsidywqd5nwdyrnr72rf9zhippkl8rbqxfy8wxq2gds";
   };
 
   androidndk_r8e = import ./androidndk_r8e.nix {
diff --git a/pkgs/development/mobile/androidenv/make-standalone-toolchain.patch b/pkgs/development/mobile/androidenv/make-standalone-toolchain_r10e.patch
similarity index 100%
rename from pkgs/development/mobile/androidenv/make-standalone-toolchain.patch
rename to pkgs/development/mobile/androidenv/make-standalone-toolchain_r10e.patch
diff --git a/pkgs/development/mobile/androidenv/make_standalone_toolchain.py_16b.patch b/pkgs/development/mobile/androidenv/make_standalone_toolchain.py_16b.patch
new file mode 100644
index 000000000000..70b1f7e7f4a5
--- /dev/null
+++ b/pkgs/development/mobile/androidenv/make_standalone_toolchain.py_16b.patch
@@ -0,0 +1,119 @@
+diff --git a/build/tools/make_standalone_toolchain.py b/build/tools/make_standalone_toolchain.py
+index a6ae8448..2739912e 100755
+--- a/build/tools/make_standalone_toolchain.py
++++ b/build/tools/make_standalone_toolchain.py
+@@ -398,7 +398,9 @@ def create_toolchain(install_path, arch, api, gcc_path, clang_path,
+                      sysroot_path, stl, host_tag):
+     """Create a standalone toolchain."""
+     copy_directory_contents(gcc_path, install_path)
++    os.system('chmod -R +w "{}"'.format(install_path))
+     copy_directory_contents(clang_path, install_path)
++    os.system('chmod -R +w "{}"'.format(install_path))
+     triple = get_triple(arch)
+     make_clang_scripts(
+         install_path, triple, api, host_tag.startswith('windows'))
+@@ -406,23 +408,28 @@ def create_toolchain(install_path, arch, api, gcc_path, clang_path,
+     sysroot = os.path.join(NDK_DIR, 'sysroot')
+     install_sysroot = os.path.join(install_path, 'sysroot')
+     shutil.copytree(sysroot, install_sysroot)
++    os.system('chmod -R +w "{}"'.format(install_path))
+ 
+     arch_headers = os.path.join(sysroot, 'usr/include', triple)
+     copy_directory_contents(
+         arch_headers, os.path.join(install_sysroot, 'usr/include'))
++    os.system('chmod -R +w "{}"'.format(install_path))
+ 
+     lib_path = os.path.join(sysroot_path, 'usr/lib')
+     lib_install = os.path.join(install_sysroot, 'usr/lib')
+     if os.path.exists(lib_path):
+         shutil.copytree(lib_path, lib_install)
++        os.system('chmod -R +w "{}"'.format(install_path))
+ 
+     lib64_path = os.path.join(sysroot_path, 'usr/lib64')
+     lib64_install = os.path.join(install_sysroot, 'usr/lib64')
+     if os.path.exists(lib64_path):
+         shutil.copytree(lib64_path, lib64_install)
++        os.system('chmod -R +w "{}"'.format(install_path))
+ 
+     prebuilt_path = os.path.join(NDK_DIR, 'prebuilt', host_tag)
+     copy_directory_contents(prebuilt_path, install_path)
++    os.system('chmod -R +w "{}"'.format(install_path))
+ 
+     toolchain_lib_dir = os.path.join(gcc_path, 'lib/gcc', triple)
+     dirs = os.listdir(toolchain_lib_dir)
+@@ -444,29 +451,37 @@ def create_toolchain(install_path, arch, api, gcc_path, clang_path,
+     if stl == 'gnustl':
+         gnustl_dir = os.path.join(NDK_DIR, 'sources/cxx-stl/gnu-libstdc++/4.9')
+         shutil.copytree(os.path.join(gnustl_dir, 'include'), cxx_headers)
++        os.system('chmod -R +w "{}"'.format(install_path))
+ 
+         for abi in get_abis(arch):
+             copy_gnustl_abi_headers(gnustl_dir, install_path, gcc_ver, triple,
+                                     abi)
++            os.system('chmod -R +w "{}"'.format(install_path))
+             copy_gnustl_libs(gnustl_dir, install_path, triple, abi)
++            os.system('chmod -R +w "{}"'.format(install_path))
+             if arch == 'arm':
+                 copy_gnustl_abi_headers(gnustl_dir, install_path, gcc_ver,
+                                         triple, abi, thumb=True)
++                os.system('chmod -R +w "{}"'.format(install_path))
+                 copy_gnustl_libs(gnustl_dir, install_path, triple, abi,
+                                  thumb=True)
++                os.system('chmod -R +w "{}"'.format(install_path))
+     elif stl == 'libc++':
+         libcxx_dir = os.path.join(NDK_DIR, 'sources/cxx-stl/llvm-libc++')
+         libcxxabi_dir = os.path.join(NDK_DIR, 'sources/cxx-stl/llvm-libc++abi')
+         support_dir = os.path.join(NDK_DIR, 'sources/android/support')
+         copy_directory_contents(os.path.join(libcxx_dir, 'include'),
+                                 cxx_headers)
++        os.system('chmod -R +w "{}"'.format(install_path))
+         copy_directory_contents(os.path.join(support_dir, 'include'),
+                                 support_headers)
++        os.system('chmod -R +w "{}"'.format(install_path))
+ 
+         # I have no idea why we need this, but the old one does it too.
+         copy_directory_contents(
+             os.path.join(libcxxabi_dir, 'include'),
+             os.path.join(install_path, 'include/llvm-libc++abi/include'))
++        os.system('chmod -R +w "{}"'.format(install_path))
+ 
+         headers = [
+             'cxxabi.h',
+@@ -482,21 +497,25 @@ def create_toolchain(install_path, arch, api, gcc_path, clang_path,
+             dest_libdir = get_dest_libdir(install_path, triple, abi)
+             include_libunwind = arch == 'arm'
+             copy_libcxx_libs(src_libdir, dest_libdir, include_libunwind)
++            os.system('chmod -R +w "{}"'.format(install_path))
+             if arch == 'arm':
+                 thumb_libdir = os.path.join(dest_libdir, 'thumb')
+                 copy_libcxx_libs(src_libdir, thumb_libdir, include_libunwind)
++                os.system('chmod -R +w "{}"'.format(install_path))
+     elif stl == 'stlport':
+         stlport_dir = os.path.join(NDK_DIR, 'sources/cxx-stl/stlport')
+         gabixx_dir = os.path.join(NDK_DIR, 'sources/cxx-stl/gabi++')
+ 
+         copy_directory_contents(
+             os.path.join(stlport_dir, 'stlport'), cxx_headers)
++        os.system('chmod -R +w "{}"'.format(install_path))
+ 
+         # Same as for libc++. Not sure why we have this extra directory, but
+         # keep the cruft for diff.
+         copy_directory_contents(
+             os.path.join(gabixx_dir, 'include'),
+             os.path.join(install_path, 'include/gabi++/include'))
++        os.system('chmod -R +w "{}"'.format(install_path))
+ 
+         headers = [
+             'cxxabi.h',
+@@ -512,9 +531,11 @@ def create_toolchain(install_path, arch, api, gcc_path, clang_path,
+ 
+         for abi in get_abis(arch):
+             copy_stlport_libs(stlport_dir, install_path, triple, abi)
++            os.system('chmod -R +w "{}"'.format(install_path))
+             if arch == 'arm':
+                 copy_stlport_libs(stlport_dir, install_path, triple, abi,
+                                   thumb=True)
++                os.system('chmod -R +w "{}"'.format(install_path))
+     else:
+         raise ValueError(stl)
+ 
diff --git a/pkgs/development/mobile/androidenv/make_standalone_toolchain.py_17.patch b/pkgs/development/mobile/androidenv/make_standalone_toolchain.py_17.patch
new file mode 100644
index 000000000000..88ce69be3e8c
--- /dev/null
+++ b/pkgs/development/mobile/androidenv/make_standalone_toolchain.py_17.patch
@@ -0,0 +1,119 @@
+diff --git a/build/tools/make_standalone_toolchain.py b/build/tools/make_standalone_toolchain.py
+index daba3351..424b7fef 100755
+--- a/build/tools/make_standalone_toolchain.py
++++ b/build/tools/make_standalone_toolchain.py
+@@ -421,7 +421,9 @@ def create_toolchain(install_path, arch, api, gcc_path, clang_path,
+                      platforms_path, stl, host_tag):
+     """Create a standalone toolchain."""
+     copy_directory_contents(gcc_path, install_path)
++    os.system('chmod -R +w "{}"'.format(install_path))
+     copy_directory_contents(clang_path, install_path)
++    os.system('chmod -R +w "{}"'.format(install_path))
+     triple = get_triple(arch)
+     make_clang_scripts(
+         install_path, triple, api, host_tag.startswith('windows'))
+@@ -432,9 +434,11 @@ def create_toolchain(install_path, arch, api, gcc_path, clang_path,
+     install_headers = os.path.join(install_sysroot, 'usr/include')
+     os.makedirs(os.path.dirname(install_headers))
+     shutil.copytree(headers, install_headers)
++    os.system('chmod -R +w "{}"'.format(install_path))
+ 
+     arch_headers = os.path.join(sysroot, 'usr/include', triple)
+     copy_directory_contents(arch_headers, os.path.join(install_headers))
++    os.system('chmod -R +w "{}"'.format(install_path))
+ 
+     for lib_suffix in ('', '64'):
+         lib_path = os.path.join(platforms_path, 'usr/lib{}'.format(lib_suffix))
+@@ -442,20 +446,24 @@ def create_toolchain(install_path, arch, api, gcc_path, clang_path,
+             install_sysroot, 'usr/lib{}'.format(lib_suffix))
+         if os.path.exists(lib_path):
+             shutil.copytree(lib_path, lib_install)
++            os.system('chmod -R +w "{}"'.format(install_path))
+ 
+     static_lib_path = os.path.join(sysroot, 'usr/lib', triple)
+     static_lib_install = os.path.join(install_sysroot, 'usr/lib')
+     if arch == 'x86_64':
+         static_lib_install += '64'
+     copy_directory_contents(static_lib_path, static_lib_install)
++    os.system('chmod -R +w "{}"'.format(install_path))
+ 
+     prebuilt_path = os.path.join(NDK_DIR, 'prebuilt', host_tag)
+     copy_directory_contents(prebuilt_path, install_path)
++    os.system('chmod -R +w "{}"'.format(install_path))
+ 
+     gdbserver_path = os.path.join(
+         NDK_DIR, 'prebuilt', 'android-' + arch, 'gdbserver')
+     gdbserver_install = os.path.join(install_path, 'share', 'gdbserver')
+     shutil.copytree(gdbserver_path, gdbserver_install)
++    os.system('chmod -R +w "{}"'.format(install_path))
+ 
+     toolchain_lib_dir = os.path.join(gcc_path, 'lib/gcc', triple)
+     dirs = os.listdir(toolchain_lib_dir)
+@@ -481,26 +489,33 @@ def create_toolchain(install_path, arch, api, gcc_path, clang_path,
+         for abi in get_abis(arch):
+             copy_gnustl_abi_headers(gnustl_dir, install_path, gcc_ver, triple,
+                                     abi)
++            os.system('chmod -R +w "{}"'.format(install_path))
+             copy_gnustl_libs(gnustl_dir, install_path, triple, abi)
++            os.system('chmod -R +w "{}"'.format(install_path))
+             if arch == 'arm':
+                 copy_gnustl_abi_headers(gnustl_dir, install_path, gcc_ver,
+                                         triple, abi, thumb=True)
++                os.system('chmod -R +w "{}"'.format(install_path))
+                 copy_gnustl_libs(gnustl_dir, install_path, triple, abi,
+                                  thumb=True)
++                os.system('chmod -R +w "{}"'.format(install_path))
+     elif stl == 'libc++':
+         libcxx_dir = os.path.join(NDK_DIR, 'sources/cxx-stl/llvm-libc++')
+         libcxxabi_dir = os.path.join(NDK_DIR, 'sources/cxx-stl/llvm-libc++abi')
+         copy_directory_contents(os.path.join(libcxx_dir, 'include'),
+                                 cxx_headers)
++        os.system('chmod -R +w "{}"'.format(install_path))
+         if api < 21:
+             support_dir = os.path.join(NDK_DIR, 'sources/android/support')
+             copy_directory_contents(os.path.join(support_dir, 'include'),
+                                     support_headers)
++            os.system('chmod -R +w "{}"'.format(install_path))
+ 
+         # I have no idea why we need this, but the old one does it too.
+         copy_directory_contents(
+             os.path.join(libcxxabi_dir, 'include'),
+             os.path.join(install_path, 'include/llvm-libc++abi/include'))
++        os.system('chmod -R +w "{}"'.format(install_path))
+ 
+         headers = [
+             'cxxabi.h',
+@@ -515,21 +530,25 @@ def create_toolchain(install_path, arch, api, gcc_path, clang_path,
+             src_libdir = get_src_libdir(libcxx_dir, abi)
+             dest_libdir = get_dest_libdir(install_path, triple, abi)
+             copy_libcxx_libs(src_libdir, dest_libdir, abi, api)
++            os.system('chmod -R +w "{}"'.format(install_path))
+             if arch == 'arm':
+                 thumb_libdir = os.path.join(dest_libdir, 'thumb')
+                 copy_libcxx_libs(src_libdir, thumb_libdir, abi, api)
++                os.system('chmod -R +w "{}"'.format(install_path))
+     elif stl == 'stlport':
+         stlport_dir = os.path.join(NDK_DIR, 'sources/cxx-stl/stlport')
+         gabixx_dir = os.path.join(NDK_DIR, 'sources/cxx-stl/gabi++')
+ 
+         copy_directory_contents(
+             os.path.join(stlport_dir, 'stlport'), cxx_headers)
++        os.system('chmod -R +w "{}"'.format(install_path))
+ 
+         # Same as for libc++. Not sure why we have this extra directory, but
+         # keep the cruft for diff.
+         copy_directory_contents(
+             os.path.join(gabixx_dir, 'include'),
+             os.path.join(install_path, 'include/gabi++/include'))
++        os.system('chmod -R +w "{}"'.format(install_path))
+ 
+         headers = [
+             'cxxabi.h',
+@@ -548,6 +567,7 @@ def create_toolchain(install_path, arch, api, gcc_path, clang_path,
+             if arch == 'arm':
+                 copy_stlport_libs(stlport_dir, install_path, triple, abi,
+                                   thumb=True)
++                os.system('chmod -R +w "{}"'.format(install_path))
+     else:
+         raise ValueError(stl)
+ 

From 832a8ca087b748db7be7969581e0e10ae1eb486c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bastian=20K=C3=B6cher?= <git@kchr.de>
Date: Thu, 17 May 2018 17:22:27 +0200
Subject: [PATCH 3/3] androidndk: Fix usage as crossSystem

---
 lib/systems/examples.nix                      |  2 +-
 .../mobile/androidenv/androidndk-pkgs.nix     | 21 +++++++++++++------
 .../mobile/androidenv/androidndk.nix          |  1 +
 .../development/mobile/androidenv/default.nix | 15 +++++++++++++
 pkgs/stdenv/cross/default.nix                 |  4 +++-
 5 files changed, 35 insertions(+), 8 deletions(-)

diff --git a/lib/systems/examples.nix b/lib/systems/examples.nix
index 9c43d9b1bbc7..4c7dd9917919 100644
--- a/lib/systems/examples.nix
+++ b/lib/systems/examples.nix
@@ -45,7 +45,7 @@ rec {
 
   aarch64-android-prebuilt = rec {
     config = "aarch64-unknown-linux-android";
-    sdkVer = "21";
+    sdkVer = "24";
     platform = platforms.aarch64-multiplatform;
     useAndroidPrebuilt = true;
   };
diff --git a/pkgs/development/mobile/androidenv/androidndk-pkgs.nix b/pkgs/development/mobile/androidenv/androidndk-pkgs.nix
index 663a1f1ee8f4..1323466ea865 100644
--- a/pkgs/development/mobile/androidenv/androidndk-pkgs.nix
+++ b/pkgs/development/mobile/androidenv/androidndk-pkgs.nix
@@ -98,10 +98,19 @@ rec {
   # We use androidndk from the previous stage, else we waste time or get cycles
   # cross-compiling packages to wrap incorrectly wrap binaries we don't include
   # anyways.
-  libraries = {
-    name = "bionic-prebuilt";
-    type = "derivation";
-    outPath = "${buildAndroidndk}/libexec/${buildAndroidndk.name}/platforms/android-${hostPlatform.sdkVer}/arch-${hostInfo.arch}/usr/";
-    drvPath = throw "fake derivation, build ${buildAndroidndk} to use";
-  };
+  libraries =
+    let
+      includePath = if buildAndroidndk.version == "10e" then
+          "${buildAndroidndk}/libexec/${buildAndroidndk.name}/platforms/android-${hostPlatform.sdkVer}/arch-${hostInfo.arch}/usr/include/"
+        else
+          "${buildAndroidndk}/libexec/${buildAndroidndk.name}/sysroot/usr/include";
+      libPath = "${buildAndroidndk}/libexec/${buildAndroidndk.name}/platforms/android-${hostPlatform.sdkVer}/arch-${hostInfo.arch}/usr/lib/";
+    in
+    runCommand "bionic-prebuilt" {} ''
+      mkdir -p $out
+      cp -r ${includePath} $out/include
+      chmod +w $out/include
+      ${lib.optionalString (lib.versionOlder buildAndroidndk.version "10e") "ln -s $out/include/${targetInfo.triple}/asm $out/include/asm"}
+      ln -s ${libPath} $out/lib
+    '';
 }
diff --git a/pkgs/development/mobile/androidenv/androidndk.nix b/pkgs/development/mobile/androidenv/androidndk.nix
index d0bfe6c8100c..78e278be2376 100644
--- a/pkgs/development/mobile/androidenv/androidndk.nix
+++ b/pkgs/development/mobile/androidenv/androidndk.nix
@@ -5,6 +5,7 @@
 
 stdenv.mkDerivation rec {
   name = "android-ndk-r${version}";
+  inherit version;
 
   src = if stdenv.system == "x86_64-linux" then fetchurl {
       url = "https://dl.google.com/android/repository/${name}-linux-x86_64.zip";
diff --git a/pkgs/development/mobile/androidenv/default.nix b/pkgs/development/mobile/androidenv/default.nix
index d122ffe241ea..3978ae1aeb7b 100644
--- a/pkgs/development/mobile/androidenv/default.nix
+++ b/pkgs/development/mobile/androidenv/default.nix
@@ -281,4 +281,19 @@ rec {
     inherit androidndk;
     targetAndroidndkPkgs = targetPackages.androidenv.androidndkPkgs;
   };
+
+  androidndkPkgs_10e = import ./androidndk-pkgs.nix {
+    inherit (buildPackages)
+      makeWrapper;
+    inherit (pkgs)
+      lib hostPlatform targetPlatform
+      runCommand wrapBintoolsWith wrapCCWith;
+    # buildPackages.foo rather than buildPackages.buildPackages.foo would work,
+    # but for splicing messing up on infinite recursion for the variants we
+    # *dont't* use. Using this workaround, but also making a test to ensure
+    # these two really are the same.
+    buildAndroidndk = buildPackages.buildPackages.androidenv.androidndk_10e;
+    androidndk = androidndk_10e;
+    targetAndroidndkPkgs = targetPackages.androidenv.androidndkPkgs_10e;
+  };
 }
diff --git a/pkgs/stdenv/cross/default.nix b/pkgs/stdenv/cross/default.nix
index 973be9831861..41b5fd99504d 100644
--- a/pkgs/stdenv/cross/default.nix
+++ b/pkgs/stdenv/cross/default.nix
@@ -41,7 +41,9 @@ in lib.init bootStages ++ [
       targetPlatform = crossSystem;
       cc = if crossSystem.useiOSPrebuilt or false
              then buildPackages.darwin.iosSdkPkgs.clang
-           else if crossSystem.useAndroidPrebuilt
+           else if (crossSystem.useAndroidPrebuilt && crossSystem.is32bit)
+             then buildPackages.androidenv.androidndkPkgs_10e.gcc
+           else if (crossSystem.useAndroidPrebuilt && crossSystem.is64bit)
              then buildPackages.androidenv.androidndkPkgs.gcc
            else buildPackages.gcc;
     };