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Added cross compiling documentation
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‎docs/Compiling.md

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# Setup the development environment
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The first step is to setup a good and viable development environment you'll be able to compile application for Android ARM platform.
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## Install ARM Toolchain
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I am using CodeSourery toolchain for cross compiling please make sure you have already installed it
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Run to make sure it is properly configured
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```
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arm-none-linux-gnueabi-gcc -v
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```
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## Compiling GLibc
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Download and extract Glibc and open `./glibc-2.19/resolv/resolv.h` and change `#define _PATH_RESCONF "/etc/resolv.cof"` to `#define _PATH_RESCONF "/data/data/org.opendroidphp/etc/resolv.conf"` and run the follwing command to cross compile glibc
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> mkdir glibc_build && cd glibc_build
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>../glibc-2.19/configure \
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> --host=arm-none-linux-gnueabi \
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> --disable-build-nscd --enable-add-ons \
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> --prefix=$HOME/droidphp/glibc/usr \
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> --enable-static-nss --with-tls \
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> --with-ports="nptl, ports"
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> make && make install
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## Setup toolchain
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Use to following configuration when you are cross compiling
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Create a filename `crosstool.sh` and include it before whenever you need to cross compile for ARM
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```
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#!/bin/bash
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PROJECT_BASE=$(pwd);
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REPOSITORY=$PROJECT_BASE/download
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ROOTFS=$PROJECT_BASE/compiled/usr
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## edit this
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export SYSROOT_SYS="$HOME/CodeSourcery/Sourcery_CodeBench_Lite_for_ARM_GNU_Linux/arm-none-linux-gnueabi/libc"
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export SYSROOT_GLIBC="$HOME/droidphp/glibc"
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export CC="arm-none-linux-gnueabi-gcc"
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export CXX="arm-none-linux-gnueabi-g++"
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export RANLIB="arm-none-linux-gnueabi-ranlib"
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export STRIP='arm-none-linux-gnueabi-strip'
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export LD='arm-none-linux-gnueabi-ld'
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export AR='arm-none-linux-gnueabi-ar'
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export HOST="arm-none-linux-gnueabi"
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export CPPFLAGS="-I${ROOTFS}/include"
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export LDFLAGS="-L${ROOFTS}/lib"
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```
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## Compiling Zlib
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```
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cd $REPOSITORY && wget http://zlib.net/zlib-1.2.8.tar.gz
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cd $PROJECT_BASE/build && tar -xzvf $REPOSITORY/zlib-1.2.8.tar.gz && cd ./zlib-1.2.8
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CFLAGS="--sysroot=$SYSROOT_SYS" ./configure \
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--prefix="$ROOTFS" \
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--static
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make && make install
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```
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## Compiling Bz2
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```
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cd $REPOSITORY && wget http://www.bzip.org/1.0.6/bzip2-1.0.6.tar.gz
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cd $PROJECT_BASE/build && tar -xzvf $REPOSITORY/bzip2-1.0.6.tar.gz && cd ./bzip2-1.0.6
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make install PREFIX=$ROOTFS
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```
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## Compiling OpenSSL
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```
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cd $REPOSITORY && wget https://www.openssl.org/source/openssl-1.0.1f.tar.gz
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cd $PROJECT_BASE/build && tar -xzvf $REPOSITORY/openssl-1.0.1f.tar.gz && cd ./openssl-1.0.1f
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OPENSSL_TARGET="linux-armv4"
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CFLAGS="--sysroot=$SYSROOT_GLIBC -static" ./Configure \
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$OPENSSL_TARGET no-shared \
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--prefix="/usr" \
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--openssldir="$ROOTFS" \
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--with-zlib-lib="$ROOTFS/lib" \
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--with-zlib-include="$ROOTFS/include" make && make INSTALL_PREFIX=$ROOTFS install
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```
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## Compiling CURL
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```
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cd $REPOSITORY && wget http://curl.haxx.se/download/curl-7.35.0.tar.gz
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cd $PROJECT_BASE/build && tar -xzvf $REPOSITORY/curl-7.35.0.tar.gz && cd ./curl-7.35.0
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CC="arm-none-linux-gnueabi-gcc --sysroot=$SYSROOT_GLIBC" \
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CXX="arm-none-linux-gnueabi-g++ --sysroot=$SYSROOT_GLIBC" \
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CPPFLAGS="-I$ROOTFS/include" \
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LDFLAGS="-L$ROOTFS/lib --static" \
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./configure --prefix="$ROOTFS" \
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--enable-zlib \
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--disable-shared \
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--without-ssl \
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--enable-static \
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--host=x86_64
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make && make install
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```
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## Compiling Iconv
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```
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cd $REPOSITORY && wget http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.14.tar.gz
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cd $PROJECT_BASE/build && tar -xzvf $REPOSITORY/libiconv-1.14.tar.gz && cd ./libiconv-1.14
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./configure \
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--prefix="$ROOTFS" \
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--enable-static \
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--disable-shared \
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--host=$HOST
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make && make install
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```
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## Compiling ncurses
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```
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cd $REPOSITORY && wget ftp://invisible-island.net/ncurses/ncurses-5.9.tar.gz
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cd $PROJECT_BASE/build && tar -xzvf $REPOSITORY/ncurses-5.9.tar.gz && cd ./ncurses-5.9
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./configure \
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--prefix="$ROOTFS" \
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--disable-widec \
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--disable-ext-funcs \
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--without-cxx-binding \
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--without-cxx \
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--without-shared \
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--without-ada \
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--without-tests \
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--without-debug \
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--host=$HOST && make && make install
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```
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## Compiling mhash
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```
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cd $REPOSITORY && wget ftp://invisible-island.net/ncurses/ncurses-5.9.tar.gz
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cd $PROJECT_BASE/build && tar -xjvf $REPOSITORY/mhash-0.9.9.9.tar.bz2 && cd ./mhash-0.9.9.9
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ac_cv_func_malloc_0_nonnull=yes \
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CPPFLAGS="-I$ROOTFS/include" LDFLAGS="-L$ROOTFS/lib" \
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./configure --prefix=$ROOTFS \
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--disable-shared \
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--enable-static --host=$HOST && make && make install
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```
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## Compiling libmcrypt
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```
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cd $PROJECT_BASE/build && tar -xjvf $REPOSITORY/libmcrypt-2.5.8.tar.bz2 && cd ./libmcrypt-2.5.8
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ac_cv_type_unsigned_long_int=no ac_cv_sizeof_unsigned_int=no \
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ac_cv_sizeof_unsigned_short_int=no ac_cv_sizeof_unsigned_char=no \
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ac_cv_func_malloc_0_nonnull=yes \
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ac_cv_func_realloc_0_nonnull=yes \
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CPPFLAGS="-I$ROOTFS/include" LDFLAGS="-L$ROOTFS/lib" \
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./configure \
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--prefix=$ROOTFS \
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--host=$HOST \
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--with-mhash \
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--enable-static \
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--disable-shared
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# hack to bypass Cannot find a 32,16 bit integer in your system
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sed -i "s{SIZEOF_UNSIGNED_CHAR no{SIZEOF_UNSIGNED_CHAR 1{" config.h
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sed -i "s{SIZEOF_UNSIGNED_INT no{SIZEOF_UNSIGNED_INT 4{" config.h
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sed -i "s{SIZEOF_UNSIGNED_LONG_INT 0{SIZEOF_UNSIGNED_LONG_INT 4{" config.h
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sed -i "s{SIZEOF_UNSIGNED_SHORT_INT no{SIZEOF_UNSIGNED_SHORT_INT 2{" config.h
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#make clean
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make && make install
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```
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## Compiling PCRE
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```
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cd $REPOSITORY && wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.34.tar.gz
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cd $PROJECT_BASE/build && tar -xzvf $REPOSITORY/pcre-8.34.tar.gz && cd ./pcre-8.34
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./configure \
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--prefix="$ROOTFS" \
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--disable-cpp \
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--host=$HOST
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make && make install
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```
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## Compiling libpng
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```
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cd $REPOSITORY && wget http://prdownloads.sourceforge.net/libpng/libpng-1.6.9.tar.gz?download
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cd $PROJECT_BASE/build && tar -xzvf $REPOSITORY/libpng-1.6.9.tar.gz && cd ./libpng-1.6.9
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./configure \
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CPPFLAGS="-mfpu=neon -I$ROOTFS/include" \
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LDFLAGS="-L$ROOTFS/lib" \
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--prefix=$ROOTFS \
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--host=$HOST
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make && make install
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```
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## Compiling libjpeg
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```
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cd $REPOSITORY && wget http://www.ijg.org/files/jpegsrc.v9.tar.gz
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cd $PROJECT_BASE/build && tar -xzvf $REPOSITORY/jpegsrc.v9.tar.gz && cd ./jpeg-9
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./configure \
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--prefix=$ROOTFS \
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--host=$HOST
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make && make install
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```
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## Compiling readline
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```
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cd $REPOSITORY && wget http://ftp.gnu.org/gnu/readline/readline-6.2.tar.gz
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cd $PROJECT_BASE/build && tar -xzvf $REPOSITORY/readline-6.2.tar.gz && cd ./readline-6.2
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./configure --prefix="$ROOTFS" \
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--with-curses="$ROOTFS" \
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--host=$HOST
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make && make install
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```
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## Compiling libxml2
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```
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cd $REPOSITORY && wget ftp://xmlsoft.org/libxml2/libxml2-git-snapshot.tar.gz
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cd $PROJECT_BASE/build && tar -xzvf $REPOSITORY/libxml2-git-snapshot.tar.gz && cd ./libxml2-2.9.1
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./configure --prefix="$ROOTFS" \
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--with-readline="$ROOTFS" \
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--with-iconv="$ROOTFS" \
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--with-zlib="$ROOTFS" \
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--without-python \
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--host=$HOST
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make && make install
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```
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## Compiling freetype
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```
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cd $REPOSITORY && wget http://download.savannah.gnu.org/releases/freetype/freetype-2.5.3.tar.gz
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cd $PROJECT_BASE/build && tar -xzvf $REPOSITORY/freetype-2.5.2.tar.gz && cd ./freetype-2.5.2
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LIBPNG_CFLAGS="-L$ROOTFS/include" \
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LIBPNG_LDFLAGS="-L$ROOTFS/lib" \
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CPPFLAGS="-I$ROOTFS/include" \
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LDFLAGS="-L$ROOTFS/lib" \
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./configure \
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--prefix=$ROOTFS \
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--host=$HOST && make && make install
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```
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## Compiling LIGHTTPD
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```
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cd $REPOSITORY && wget http://download.lighttpd.net/lighttpd/releases-1.4.x/lighttpd-1.4.34.tar.gz
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cd $PROJECT_BASE/build && lighttpd-1.4.34.tar.gz && cd ./lighttpd-1.4.34
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export CROSS_COMPILING=yes
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export PCRECONFIG=$ROOTFS/bin/pcre-config
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export CFLAGS="-DLIGHTTPD_STATIC -I$ROOTFS/include "
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export LDFLAGS="-L$ROOTFS/lib"
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#export LUA_LIBS="-L$ROOTFS/lib"
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#export LUA_CFLAGS="-I$ROOTFS/include"
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## hack the lighttpd build system
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## manually copy `droidphp/diffs/lighttpd_embedded_arm_support.diff` to `lighttpd-1.4.xx/`
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patch -p1 < lighttpd_embedded_arm_support.diff
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LIBS="-lpcre -lz -ldl" \
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CC="arm-none-linux-gnueabi-gcc -static --sysroot=$SYSROOT_GLIBC" ./configure \
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--prefix="$ROOTFS/lighttpd" \
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--disable-shared \
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--enable-static \
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--with-openssl="$ROOTFS/usr" \
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--with-libiconv=$ROOTFS \
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--disable-rpath \
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--with-pcre \
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--with-sysroot=$SYSROOT_GLIBC \
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--with-zlib \
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--without-bzip2 \
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--without-lua \
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--host=$HOST
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make CC="arm-none-linux-gnueabi-gcc -static --sysroot=$SYSROOT_GLIBC" \
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CXX="arm-none-linux-gnueabi-g++ -static --sysroot=$SYSROOT_GLIBC"
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make install
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```
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## Compiling PHP
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```
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cd $REPOSITORY && wget http://www.php.net/get/php-5.5.9.tar.bz2/from/a/mirror
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cd $PROJECT_BASE/build && tar -xjvf $REPOSITORY/php-5.5.9.tar.bz2 && cd ./php-5.5.9
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# make clean
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CC="arm-none-linux-gnueabi-gcc --sysroot=$SYSROOT_GLIBC" \
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CXX="arm-none-linux-gnueabi-g++ --sysroot=$SYSROOT_GLIBC" \
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LDFLAGS="-static -I$ROOTFS/lib -L$ROOTFS/usr/lib" \
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CFLAGS="-I$ROOTFS/include -I$ROOTFS/usr/include" ./configure \
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--prefix=$ROOTFS/php \
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--enable-static \
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--disable-all \
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--enable-filter \
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--enable-calendar \
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--enable-ctype \
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--enable-dom \
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--enable-exif \
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--enable-fileinfo \
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--enable-ftp \
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--with-mhash="$ROOTFS/usr" \
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--disable-intl \
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--disable-phar \
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--enable-posix \
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--enable-shmop \
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--enable-simplexml \
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--enable-sysvmsg \
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--enable-sysvsem \
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--enable-tokenizer \
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--disable-wddx \
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--enable-xmlreader \
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--enable-xmlwriter \
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--enable-opcache=no \
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--enable-pcntl \
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--enable-soap \
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--enable-cgi \
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--enable-json \
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--with-zlib \
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--enable-zip \
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--with-mysql \
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--enable-mysqlnd \
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--with-mysqli=mysqlnd \
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--enable-pdo \
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--with-pdo-mysql=mysqlnd \
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--enable-libxml \
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--with-pdo-sqlite \
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--with-sqlite3 \
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--enable-sockets \
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--enable-bcmath \
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--enable-mbstring \
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--enable-mbregex \
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--enable-session \
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--with-zlib-dir="$ROOTFS" \
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--with-libxml-dir="$ROOTFS" \
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--with-curl="$ROOTFS" \
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--with-openssl="$ROOTFS/usr" \
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--with-jpeg-dir="$ROOTFS" \
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--with-png-dir="$ROOTFS" \
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--with-freetype-dir="$ROOTFS" \
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--with-iconv-dir="$ROOTFS" \
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--with-mcrypt="$ROOTFS" \
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--host=$HOST
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## hack
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sed -ie "s{ext/mysqlnd/php_mysqlnd_config.h{config.h{" ext/mysqlnd/mysqlnd_portability.h
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sed -i "s{-export-dynamic{-all-static{" Makefile
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sed -i "s{-I/usr/include{ {" Makefile
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make && make install
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```
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## Compiling MSMTP
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```
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cd $REPOSITORY && wget http://www.php.net/get/php-5.5.9.tar.bz2/from/a/mirror
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cd $PROJECT_BASE/build && tar -xjvf $REPOSITORY/msmtp-1.4.31.tar.bz2 &&cd ./msmtp-1.4.31
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ac_cv_sys_file_offset_bits=unknown \
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libssl_CFLAGS="-I$ROOTFS/usr/include" \
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libssl_LDFLAGS="-L$ROOTFS/usr/lib" \
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libssl_LIBS="-lssl -lcrypto" \
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CPPFLAGS="-I$ROOTFS/include -I$ROOTFS/usr/include" \
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LDFLAGS="-L$ROOTFS/lib -L$ROOTFS/usr/lib" LIBS="-ldl" ./configure \
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--prefix=$ROOTFS/msmstp \
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--host=$HOST \
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--with-libiconv-prefix="$ROOTFS" \
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--with-ssl=openssl
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make CFLAGS="-static" \
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CC="arm-none-linux-gnueabi-gcc --sysroot=$SYSROOT_GLIBC" \
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CPP="arm-none-linux-gnueabi-g++ --sysroot=$SYSROOT_GLIBC" && make install
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```
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## Author
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* [Shushant Kumar](http://github.com/shushant)
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## License
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* [Apache Version 2.0](http://www.apache.org/licenses/LICENSE-2.0.html)
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## Contributing
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Please fork this repository and contribute back using
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[pull requests](https://github.com/droidphp/droidphp/pulls).
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Any contributions, large or small, major features, bug fixes, additional
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language translations, unit/integration tests are welcomed and appreciated
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but will be thoroughly reviewed and discussed.

‎docs/Getting_stared.md

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## Getting Started
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## Contributing
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This document not a complete reference.
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If you have enough time for writing documentation please do it

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