build: add android support

Resolves minor discrepancies between android and standard POSIX systems.
In addition, some configure parameters were added, and a helper-script
for android configuration. Ideally, this script should be merged into
the standard configure script.

To build for android, source the android-configure script with an NDK
path:

    source ./android-configure ~/android-ndk-r8d

This will create an android standalone toolchain and export the
necessary environment parameters.

After that, build as normal:

    make -j8

After the build, you should now have android-compatible NodeJS binaries.

1 files changed, 19 insertions, 0 deletions

diff --git a/android-configure b/android-configure
new file mode 100755
index 0000000000..7acb7f3766
--- /dev/null
+++ b/android-configure
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+export TOOLCHAIN=$PWD/android-toolchain
+mkdir -p $TOOLCHAIN
+$1/build/tools/make-standalone-toolchain.sh \
+    --toolchain=arm-linux-androideabi-4.7 \
+    --arch=arm \
+    --install-dir=$TOOLCHAIN \
+    --platform=android-9
+export PATH=$TOOLCHAIN/bin:$PATH
+export AR=arm-linux-androideabi-ar
+export CC=arm-linux-androideabi-gcc
+export CXX=arm-linux-androideabi-g++
+export LINK=arm-linux-androideabi-g++
+
+./configure \
+    --without-snapshot \
+    --dest-cpu=arm \
+    --dest-os=android