Ocaml cross-compiler for Android.
On a 64bit Debian or Ubuntu installation, you need to install package
gcc-multilib: we have to build 32 bit OCaml binaries when targeting
32 bit architectures.
Follow the following steps to compile:
- download the Android NDK and the OCaml source code;
- edit
Makefile.config; - run
make.
For convenience, binaries (ocamlc, ocamlopt, ...) are put both in
$ANDROID_BINDIR
prefixed by arm-linux-androideabi-, and in
$ANDROID_BINDIR/arm-linux-androideabi
unprefixed.
The Android OCaml runtime ocamlrun is in directory
$ANDROID_PREFIX/bin/.
There are a few pitfalls regarding bytecode programs. First, if you
link them without the -custom directive, you will need to use
ocamlrun explicitly to run them. Second, the ocamlmklib command
produces shared libraries dll*.so which are not usable. Thus, you
need to use the -custom directive to successfully link bytecode
programs that uses libraries with mixed C / OCaml code. Shared
libraries should eventually be disabled, but at the moment, the
ocamlbuild plugin of oasis requires them to be created.
Many thanks to Keigo Imai for his OCaml 3.12 cross-compiler patches.