Build dependencies installation

Replicant can only be built on 64 bit x86 architectures, building on 32 bit x86 systems is no longer supported.
However, some prebuilt tools are still 32 bit x86 executables and some host tools are generated as 32 bit x86 executables.

Debian-based systems

Debian 9

Packages installation:

dpkg --add-architecture i386 ; apt-get update
apt-get build-dep gcc binutils llvm-defaults
apt-get install gcc-arm-none-eabi cmake python-dev swig ant bc proguard maven-debian-helper libemma-java libasm4-java libguava-java libnb-platform18-java libnb-org-openide-util-java libandroidsdk-ddmlib-java libmaven-source-plugin-java libfreemarker-java libmaven-javadoc-plugin-java repo ca-cacert curl gawk libgmp3-dev libmpfr-dev libmpc-dev git-core gperf libncurses-dev squashfs-tools pngcrush zip zlib1g-dev lzma libc6-dev-i386 g++-multilib lib32z1-dev lib32readline-dev lib32ncurses5-dev zlib1g-dev:i386 xsltproc python-mako schedtool gradle dirmngr libandroidsdk-sdklib-java eclipse-jdt libgradle-android-plugin-java android-sdk-build-tools android-sdk-platform-23 aapt lzop

Tweaks