Build applypatch

build_applypatch.sh

#!/bin/sh

# if you do not want to fetch source again ..
DO_NOT_FETCH=1

cd src
if [ -z "$DO_NOT_FETCH" ]; then
  BRANCH=android-4.4.4_r2
  #BRANCH=android-4.3_r3

  git clone https://android.googlesource.com/platform/system/core
  cd core; git checkout -b $BRANCH $BRANCH; cd ..
  git clone https://android.googlesource.com/platform/external/bzip2
  cd bzip2; git checkout -b $BRANCH $BRANCH; cd ..
  git clone https://android.googlesource.com/platform/external/zlib
  cd zlib; git checkout -b $BRANCH $BRANCH; cd ..  
  git clone https://android.googlesource.com/platform/bootable/recovery
  cd recovery; git checkout -b $BRANCH $BRANCH; cd ..
fi

cd zlib/src
gcc -O3 -DUSE_MMAP -I.. \
    -c adler32.c compress.c crc32.c deflate.c gzclose.c gzlib.c gzread.c \
       gzwrite.c infback.c inflate.c inftrees.c inffast.c trees.c uncompr.c \
       zutil.c
ar rcs libz.a *.o
cd ../..
                  
cd bzip2
gcc -O3 -DUSE_MMAP \
    -c blocksort.c huffman.c crctable.c randtable.c compress.c decompress.c bzlib.c
ar rcs libbz.a *.o
cd ..

cd core/libmincrypt
gcc -c rsa.c sha.c sha256.c -I ../include
ar rcs libmincrypt.a *.o
cd ../..

cd recovery/applypatch
gcc -I ../../core/include -I .. \
    -o applypatch \
    ../minelf/Retouch.c main.c applypatch.c bsdiff.c freecache.c imgpatch.c utils.c bspatch.c \
    ../../core/libmincrypt/libmincrypt.a \
    ../../zlib/src/libz.a \
    ../../bzip2/libbz.a
cd ../..