Cross compile libpcap for Android/arm

Compile libpcap 1.5.2

export ANDROID_NDK=/home/ducalpha/android/ndk # or your Android NDK root directory

export CC=${ANDROID_NDK}/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc

export CCOPT="-O2 -fpic --sysroot=/home/ducalpha/adr/ndk/platforms/android-14/arch-arm -DANDROID -DOS_ANDROID"

export CFLAGS="--sysroot=${ANDROID_NDK}/platforms/android-14/arch-arm -DANDROID -DOS_ANDROID"

export LDFLAGS="--sysroot=${ANDROID_NDK}/platforms/android-14/arch-arm -fPIC -mandroid -L${ANDROID_NDK}/platforms/android-14/arch-arm/usr/lib"

./configure --host=arm-linux --with-pcap=linux --prefix=${ANDROID_NDK}/platforms/android-14/arch-arm/usr

make

make install

Compile libpcap 1.4.0

Reason for my failure: libpcap 1.4.0 has a "wrong" configure script and creates "wrong" config.h so we need to fix them

1. configure script: remove all #define in configure

why? this will make android ndk gcc fail to compile because of multiple definition of int8, int16, int32, u_int8, u_int16, u_int32

2. Create correct config.h

Manually fix #define in config.h :(

After the above step, we must:

1. export CFLAGS and LDLAGS for Android

2. use prefix for installation

--prefix=/home/ducalpha/adr/ndk/platforms/android-14/arch-arm/usr/lib

/usr/lib: library *.so files

/usr/include: include files

All commands needed for compilation:

Change directory to the root directory of libpcap

export ANDROID_NDK=/home/ducalpha/android/ndk