##
#    Copyright By Schips, All Rights Reserved
# 自定义变量

OUTPUT_PATH=`pwd`/install
ARM_GCC=arm-hisiv500-linux-gcc
BASE=`pwd`
ZLIB=zlib-
MTD_UTILS=mtd-utils-
LZO=lzo-2.08
E2FSPROGS=e2fsprogs-

make_dirs () {
    #为了方便管理，创建有关的目录
    cd ${BASE} && mkdir compressed install source -p
}

download_package () {
    cd ${BASE}/compressed

    #wget -c https://www.zlib.net/${ZLIB}.tar.gz
    #wget -c http://www.oberhumer.com/opensource/lzo/download/${LZO}.tar.gz
    # 注意下面这行的网址
    #wget -c https://jaist.dl.sourceforge.net/project/e2fsprogs/e2fsprogs/1.41.14/${E2FSPROGS}.tar.gz
    #wget -c ftp://ftp.infradead.org/pub/mtd-utils/${MTD_UTILS}.tar.bz2

}

tar_package () {
    cd ${BASE}/compressed

    #解压下载的包
    tar -C ../source -xf ${ZLIB}.tar.gz
    tar -C ../source -xf ${LZO}.tar.gz
    tar -C ../source -xf ${E2FSPROGS}.tar.gz
    tar -C ../source -xf ${MTD_UTILS}.tar.bz2
}

#编译
# 有些人喜欢把交叉库编译到工具链中以简化编译的操作步骤，本人觉得这样的做法是非常错误的。（会对工具链造成污染）

make_zlib () {
    # 编译安装 zlib
    cd ${BASE}/source/${ZLIB}
    echo "ZLIB ABOUT"
    CC=${ARM_GCC} ./configure --prefix=${OUTPUT_PATH}/${ZLIB}
    make && make install
}

make_lzo () {
    # 编译安装 lzo
    cd ${BASE}/source/${LZO}
    echo "LZO ABOUT"
    CC=${ARM_GCC} ./configure --host=arm-linux  --prefix=${OUTPUT_PATH}/${LZO}
    make && make install
}

make_e2fsprogs () {
    # 编译安装 e2fsprogs
    cd ${BASE}/source/${E2FSPROGS}
    echo "E2FSPROGS ABOUT"
    CC=${ARM_GCC} ./configure --host=arm-linux --enable-elf-shlibs --prefix=${OUTPUT_PATH}/${E2FSPROGS}
    make && make install-libs
    mkdir ${OUTPUT_PATH}/${E2FSPROGS}/include/uuid -p
    cp lib/uuid/uuid.h ${OUTPUT_PATH}/${E2FSPROGS}/include/uuid
}

make_mtd_utils () {　　 # 编译安装 mtd-utils
    cd ${BASE}/source/${MTD_UTILS}
    echo "MTD ABOUT"
    # 下面4行修复了mtd编译的一些问题
    sed -r -i "/LDLIBS_mkfs.ubifs = -lz -llzo2 -lm -luuid/ s/.*/LDLIBS_mkfs.ubifs = -lz -llzo2 -lm -luuid \$(ZLIBLDFLAGS) \$(LZOLDFLAGS) \$(UUIDLDLIBS)/g" Makefile
    sed -r -i "/#include <uuid\/uuid.h>/ s/.*/#include \"uuid\/uuid.h\"/g" mkfs.ubifs/mkfs.ubifs.h
    mkdir mkfs.ubifs/uuid -p
    cp ${BASE}/source/${E2FSPROGS}/lib/uuid/uuid.h mkfs.ubifs/uuid/uuid.h

    export CROSS=arm-hisiv500-linux-
    export DESTDIR=${OUTPUT_PATH}/mtd-utils
    export ZLIBCPPFLAGS=-I${OUTPUT_PATH}/${ZLIB}/include
    export  LZOCPPFLAGS="-I${OUTPUT_PATH}/${LZO}/include -I{$OUTPUT_PATH}/${E2FSPROGS}/include/"
    export  ZLIBLDFLAGS=-L${OUTPUT_PATH}/${ZLIB}/lib
    export   LZOLDFLAGS=-L${OUTPUT_PATH}/${LZO}/lib
    export   UUIDLDLIBS=-L${OUTPUT_PATH}/${E2FSPROGS}/lib

}

make_dirs#download_packagetar_package
make_zlib
make_lzo
make_e2fsprogs
make_mtd_utils