zlib

Ruby install aborted due to missing extensions: openssl, readline, zlib compilation error

别等时光非礼了梦想. 提交于 2021-02-18 18:51:02
问题 I'm using macOs Catalina. I'm trying to install older version of Ruby (1.9.3, 2.1.2) via rbenv. However, I keep getting the errors below, when trying installing older version. *It was fine when installing 2.4 or newer. I already try brew install openssl brew install readline brew install zlib as well as brew update. I have everything installed and up-to-dated but still the errors below keeps coming up. I also did tried to install with configure option RUBY_CONFIGURE_OPTS="--with-readline-dir=

Ruby install aborted due to missing extensions: openssl, readline, zlib compilation error

僤鯓⒐⒋嵵緔 提交于 2021-02-18 18:50:54
问题 I'm using macOs Catalina. I'm trying to install older version of Ruby (1.9.3, 2.1.2) via rbenv. However, I keep getting the errors below, when trying installing older version. *It was fine when installing 2.4 or newer. I already try brew install openssl brew install readline brew install zlib as well as brew update. I have everything installed and up-to-dated but still the errors below keeps coming up. I also did tried to install with configure option RUBY_CONFIGURE_OPTS="--with-readline-dir=

How to use zlib library in visual studio 2017?

本小妞迷上赌 提交于 2021-02-18 02:25:29
问题 I want to use the zlib library in my c++ project. So, I have downloaded zlib library( zlib_1_2_8_msvc2015_64.zip ). Then, I have created zlib folder under "C:\Program Files\Zlib" . Then, Extract zlib_1_2_8_msvc2015_64.zip file into "C:\Program Files\Zlib" . After that, I have opened visual studio 2017 and goes to property => C/C++ => general => additional include directories and added that path : "C:\Program Files\Zlib\msvc2015_64" . After that, I have added #include <zlib.h> header file in

How to use zlib library in visual studio 2017?

安稳与你 提交于 2021-02-18 02:19:56
问题 I want to use the zlib library in my c++ project. So, I have downloaded zlib library( zlib_1_2_8_msvc2015_64.zip ). Then, I have created zlib folder under "C:\Program Files\Zlib" . Then, Extract zlib_1_2_8_msvc2015_64.zip file into "C:\Program Files\Zlib" . After that, I have opened visual studio 2017 and goes to property => C/C++ => general => additional include directories and added that path : "C:\Program Files\Zlib\msvc2015_64" . After that, I have added #include <zlib.h> header file in

How to use zlib library in visual studio 2017?

血红的双手。 提交于 2021-02-18 02:19:04
问题 I want to use the zlib library in my c++ project. So, I have downloaded zlib library( zlib_1_2_8_msvc2015_64.zip ). Then, I have created zlib folder under "C:\Program Files\Zlib" . Then, Extract zlib_1_2_8_msvc2015_64.zip file into "C:\Program Files\Zlib" . After that, I have opened visual studio 2017 and goes to property => C/C++ => general => additional include directories and added that path : "C:\Program Files\Zlib\msvc2015_64" . After that, I have added #include <zlib.h> header file in

How to use zlib library in visual studio 2017?

折月煮酒 提交于 2021-02-18 02:18:35
问题 I want to use the zlib library in my c++ project. So, I have downloaded zlib library( zlib_1_2_8_msvc2015_64.zip ). Then, I have created zlib folder under "C:\Program Files\Zlib" . Then, Extract zlib_1_2_8_msvc2015_64.zip file into "C:\Program Files\Zlib" . After that, I have opened visual studio 2017 and goes to property => C/C++ => general => additional include directories and added that path : "C:\Program Files\Zlib\msvc2015_64" . After that, I have added #include <zlib.h> header file in

Hive SQL查询效率提升之Analyze方案的实施

风格不统一 提交于 2021-02-17 13:50:16
0.简介 Analyze,分析表(也称为计算统计信息)是一种内置的Hive操作,可以执行该操作来收集表上的元数据信息。这可以极大的改善表上的查询时间,因为它收集构成表中数据的行计数,文件计数和文件大小(字节),并在执行之前将其提供给查询计划程序。 <!-- more --> 1.如何分析表? 基础分析语句 ANALYZE TABLE my_database_name.my_table_name COMPUTE STATISTICS; 这是一个基础分析语句,不限制是否存在表分区,如果你是分区表更应该定期执行。 分析特定分区 ANALYZE TABLE my_database_name.my_table_name PARTITION (YEAR=2019, MONTH=5, DAY=12) COMPUTE STATISTICS; 这是一个细粒度的分析语句。它收集指定的分区上的元数据,并将该信息存储在Hive Metastore中已进行查询优化。该信息包括每列,不同值的数量,NULL值的数量,列的平均大小,平均值或列中所有值的总和(如果类型为数字)和值的百分数。 分析列 ANALYZE TABLE my_database_name.my_table_name COMPUTE STATISTICS FOR column1, column2, column3; 它收集指定列上的元数据

centos 编译python3.7.0 报错ModuleNotFoundError: No module named &apos;_ctypes&apos;

时光毁灭记忆、已成空白 提交于 2021-02-15 19:29:54
平台:CentOS7 先安装以下依赖 yum -y groupinstall "Development tools" yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel yum install libffi-devel -y make install 来源: oschina 链接: https://my.oschina.net/u/2654135/blog/3074409

Nginx用法详解

末鹿安然 提交于 2021-02-14 08:51:19
nginx作为一个高性能的web服务器,想必大家垂涎已久,蠢蠢欲动,想学习一番了吧,语法不多说,网上一大堆。下面博主就nginx的非常常用的几个功能做一些讲述和分析,学会了这几个功能,平常的开发和部署就不是什么问题了。因此希望大家看完之后,能自己装个nginx来学习配置测试,这样才能真正的掌握它。 1. 正向代理 正向代理:内网服务器主动去请求外网的服务的一种行为 光看概念,可能有读者还是搞不明白:什么叫做“正向”,什么叫做“代理”,我们分别来理解一下这两个名词。 正向:相同的或一致的方向 代理:自己做不了的事情或者自己不打算做的事情,委托或依靠别人来完成。 借助解释,回归到nginx的概念,正向代理其实就是说客户端无法主动或者不打算完成主动去向某服务器发起请求,而是委托了nginx代理服务器去向服务器发起请求,并且获得处理结果,返回给客户端。 从下图可以看出:客户端向目标服务器发起的请求,是由代理服务器代替它向目标主机发起,得到结果之后,通过代理服务器返回给客户端。 举个栗子:广大社会主义接班人都知道,为了保护祖国的花朵不受外界的乌烟瘴气熏陶,国家对网络做了一些“优化”,正常情况下是不能外网的,但作为程序员的我们如果没有谷歌等搜索引擎的帮助,再销魂的代码也会因此失色,因此,网络上也曾出现过一些fan qiang技术和软件供有需要的人使用,如某VPN等

迅为iMX6ULL开发板移植 ssh 服务

蓝咒 提交于 2021-02-13 07:57:19
硬件平台: i.MX6UULL开发板 转自:迅为 i.MX6UULL开发板使用手册第七十五章 整个移植过程是比较简单的,而且我们没有做任何协议方面的了解,只是 “配置”+“编译”就完成了整个工作,现在大家应该对移植开源软件有了基本的了解。本章节使用的资料已经放到了开发板网盘资料中,路径为:11_Linux 系统开发进阶 \75_章节使用资料 。 入门视频教程中,给 Windows 系统安装了 ssh 客户端,给 Ubuntu 安装了 ssh 服务器,这样就可以通过 ssh 在 Windows 和虚拟机 Ubuntu 之间传输文件。其实在开发板上也是可以移植和安装 ssh 服务器,这样就可以通过网络,在 Windows 和开发板之间传输文件。 我们要完成的目标是能够通过 ssh 在开发板在 Windows 和开发板之间传输文件,当然也是可以使用ssh 控制台。 这个实验比前面的 “串口文件传输工具”教程在工程(实用性)上是更加有用的,假如在实际的产品中,运行的是根文件系统,没有界面,如果数据需要在开发板和 Windows 传输数据,对于普通用户来说,是一个很好的选择,操作起来比较简单,只需要登陆然后直接将文件拖来拖去即可。 这个实验的难度要比 “串口文件传输工具”要大一点,ssh 服务器需要依赖其他的库文件,所以需要开发者先移植完成所有依赖的库文件,最后才能移植 ssh 服务器。