ubuntu问题集

Linux缺少libssl.so.1.0.0的解决方法

A： openssl网址

wget http://security.ubuntu.com/ubuntu/pool/main/o/openssl/libssl1.0.0_1.0.2g-1ubuntu4.20_amd64.deb
sudo dpkg -i libssl1.0.0_1.0.2g-1ubuntu4.20_amd64.deb

Linux下缺少libiconv.so.2的解决方法

A：libiconv介绍

libiconv下载

#　下载
wget https://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.17.tar.gz
# 解压
tar -zxvf libiconv-1.17.tar.gz
cd libiconv-1.17
# configure，make编译安装库
sudo ./configure --prefix=/usr/local
sudo make
sudo make install
# 软连接
sudo ln -s /usr/local/lib/libiconv.so.2 /usr/lib/libiconv.so.2
sudo ldconfig

Linux 找不到libopenal.so.1

Q: error while loading shared libraries: libopenal.so.1: cannot open shared object file: No such file or directory.

A: 安装依赖

sudo apt-get install libopenal-dev

GCC-8.2 安装

ubuntu安装g++ gcc make

sudo apt install g++ gcc make cmake

gcc --version
g++ --version

编译安装gcc-8.2
推荐使用方法2.进行安装gcc-8.2

# [1] 方法1
# 先保证本机安装低版本的gcc
wget -q https://paddle-docker-tar.bj.bcebos.com/home/users/tianshuo/bce-python-sdk-0.8.27/gcc-8.2.0.tar.xz && \
tar -xvf gcc-8.2.0.tar.xz && \
cd gcc-8.2.0 && \

./contrib/download_prerequisites && \
unset LIBRARY_PATH CPATH C_INCLUDE_PATH PKG_CONFIG_PATH CPLUS_INCLUDE_PATH INCLUDE && \
./contrib/download_prerequisites && \
cd .. && mkdir temp_gcc82 && cd temp_gcc82 && \
../gcc-8.2.0/configure CFLAGS="-g3 -gdwarf-2 -O0" CXXFLAGS="-g3 -gdwarf-2 -O0" CFLAGS_FOR_TARGET="-g3  -gdwarf-2 -O0" CXXFLAGS_FOR_TARGET="-g3 -gdwarf-2 -O0" --disable-multilib --enable-languages=c,c++ --prefix=/home/ubuntu/install/gcc-8.2 &&\
sudo make -j8 && sudo make install

# 添加环境变量
vim ~/.bashrc
# 文件最后添加
export PATH="/home/ubuntu/install/gcc-8.2/bin:$PATH"
# bashrc 生效
source ~/.bashrc


# [2] 方法2
#　编译GCC-8.2.0 比较难，可以将编译好的gcc-8.2 下载到本地，拷贝文件到安装目录
# 链接：https://www.aliyundrive.com/s/zwM3vFZm2s5
# 提取码：8cb9

tar -zxvf gcc-8.2.tar
# 添加环境变量即可
vim ~/.bashrc
# 文件最后添加
export PATH="/home/ubuntu/install/gcc-8.2/bin:$PATH"
# bashrc 生效
source ~/.bashrc
# 关闭当前控制台窗口，开启新的控制台窗口,查询版本号
g++ --version 
gcc --version