protobuf交叉

参考：https://blog.csdn.net/wo_Niu123/article/details/80433473

特别注意：--with-protoc的配置()

如果有：rc/google/protobuf/stubs/common.cc文件，发现是找不到HAVE_PTHREAD宏定义导致找不到pthread库，本文解决办法就是在该文件加上该句宏定义（临时解决，有其他更好的方法欢迎告知探讨）#define HAVE_PTHREAD

1、x86  ./autogen.sh

2、source 交叉编译环境

3、./configure --host=arm-linux --prefix=/home/gg/Documents/protobuf-master/bin  --with-protoc=protoc \

CC=/opt/fsl-imx-fb/4.1.15-2.1.0/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-gcc \

CXX=/opt/fsl-imx-fb/4.1.15-2.1.0/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++

4、make

备注：

#!/bin/bash

cd $(dirname $0)

mkdir -p $TARGET_PRODUCT_OUT/build/protobuf

PWD=`pwd`

export CFLAG=$CONFIGURE_FLAGS

./autogen.sh

./configure $CONFIGURE_FLAGS\

--host=arm-linux\

--prefix=$TARGET_PRODUCT_OUT\

--with-protoc=/usr/local/bin/protoc

# --disable-protoc　    --with-protoc=/usr/local/bin/protoc

#--host=arm-linux --with-protoc=protoc

5、test-ok

5.1、autogen.sh

5.2、./configure --host=arm-linux --disable-shared CFLAGS="-fPIC -fvisibility=hidden" CXXFLAGS="-fPIC -fvisibility=hidden" CC=/media/ggl/fe7ba78a-6725-4cfb-8104-55950209e8272/home/ggl/opt/arm-liunx-gcc49/bin/arm-linux-gnueabi-gcc  CXX=/media/ggl/fe7ba78a-6725-4cfb-8104-55950209e8272/home/ggl/opt/arm-liunx-gcc49/bin/arm-linux-gnueabi-g++ --prefix=$PWD/install

5.3 make -j4

6、

. /media/ggl/fe7ba78a-6725-4cfb-8104-55950209e8272/home/ggl/opt/arm-liunx-gcc49

cmake .. -DGFLAGS_NAMESPACE=gflags -DCMAKE_CXX_FLAGS=-fPIC -DBUILD_SHARED_LIBS=ON -DCMAKE_C_COMPILER=arm-linux-gnueabi-gcc -DCMAKE_CXX_COMPILER=arm-linux-gnueabi-g++

7、

# This is required. target system name

SET(CMAKE_SYSTEM_NAME Linux)

SET(CMAKE_SYSTEM_PROCESSOR arm)

# specify the cross compiler

SET(TOOLCHAIN_PATH /media/ggl/fe7ba78a-6725-4cfb-8104-55950209e8272/home/ggl/opt/arm-liunx-gcc49)

SET(CMAKE_SYSROOT ${TOOLCHAIN_PATH}/arm-linux-gnueabi)

SET(CMAKE_C_COMPILER  ${TOOLCHAIN_PATH}/bin/arm-linux-gnueabi-gcc)

SET(CMAKE_CXX_COMPILER ${TOOLCHAIN_PATH}/bin/arm-linux-gnueabi-g++)

# search for programs in the build host directories

SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)

# for libraries and headers in the target directories

SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)

SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

SET(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)