libpnglinux安裝

『壹』 linux系統如何讓php使用GD庫函數

linux下為php添加GD庫的步驟如下：

一、下載

gd-2.0.33.tar.gz http://www.boutell.com/gd/
jpegsrc.v6b.tar.gz http://www.ijg.org/
libpng-1.2.7.tar.tar http://sourceforge.net/projects/libpng/
zlib-1.2.2.tar.gz http://sourceforge.net/projects/zlib/
freetype-2.1.9.tar.gz http://sourceforge.net/projects/freetype/
php-4.3.9.tar.gz http://www.php.net

二、安裝

1.安裝zlib

tar zxvf zlib-1.2.2.tar.gz
cd zlib-1.2.2
./configure
make
make install

2.安裝libpng

tar zxvf libpng-1.2.7.tar.tar
cd libpng-1.2.7
cd scripts/
mv makefile.linux ../makefile
cd ..
make
make install
注意，這里的makefile不是用./configure生成，而是直接從scripts/里拷一個

3.安裝freetype

tar zxvf freetype-2.1.9.tar.gz
cd freetype-2.1.9
./configure
make
make install

4.安裝Jpeg

tar zxvf jpegsrc.v6b.tar.gz
cd jpeg-6b/
./configure --enable-shared
make
make test
make install
注意，這里configure一定要帶--enable-shared參數，不然，不會生成共享庫

5.安裝GD

tar zxvf gd-2.0.33.tar.gz
cd gd-2.0.33
./configure --with-png --with-freetype --with-jpeg
make install

6.重新編譯PHP

tar zxvf php-4.3.9.tar.gz
cd php-4.3.9
./configure (以前的參數) --with-gd --enable-gd-native-ttf --with-zlib --with-png --with-jpeg --with-freetype --enable-sockets
make
make install

<?php
phpinfo();
?>

Ok.....

『貳』 怎麼安裝opencv linux

OpenCV是一個基於開源發行的跨平台計算機視覺庫，它輕量級而且高效——由一系列 C 函數和少量 C++ 類構成，同時提供了python、Ruby、MATLAB等語言的介面，實現了圖像處理和計算機視覺方面的很多通用演算法。在linux上安裝opencv的方法如下：

工具：

Windows7、VMware Workstation 12 Pro、ubuntu-15.10、opencv-3.0.0.zip

步驟：

一、安裝關聯庫

1、安裝編譯工具：sudo apt-get install build-essential

編譯程序有了這個軟體，它才知道頭文件和庫函數在哪，最後才形成一個開發環境。

『叄』 如何在linux下安裝多個不同版本的PHP

Linux (測試環境 Ubuntu 12.04 Server X86_64)
1. 安裝編譯工具及所需類庫
$ sudo apt-get install build-essential gcc g++ autoconf libjpeg62 libjpeg62-dev libpng12-0 libpng12-dev libfreetype6 libfreetype6-dev libxml2 libxml2-dev zlib1g zlib1g-dev bzip2 libbz2-dev openssl libssl-dev curl libcurl4-openssl-dev libpcre3 libpcre3-dev libevent-1.4-2 libevent-dev libmcrypt4 libmcrypt-dev mcrypt libltdl-dev libldap2-dev libsasl2-dev libmhash-dev libc-client2007e libc-client2007e-dev
2. 安裝MySQL
$ sudo apt-get install mysql-server libmysqlclient-dev
3. 安裝PHP
Linux下多版本PHP共存需要自己手工編譯安裝。
下載PHP源文件到/opt/src目錄
$ mkdir /opt/src
$ cd /opt/src
$ wget http://museum.php.net/php5/php-5.2.17.tar.bz2 -O php-5.2.17.tar.bz2
$ wget http://cn2.php.net/get/php-5.3.28.tar.bz2/from/this/mirror -O php-5.3.28.tar.bz2
$ wget http://cn2.php.net/get/php-5.4.29.tar.bz2/from/this/mirror -O php-5.4.29.tar.bz2
$ wget http://cn2.php.net/get/php-5.5.14.tar.bz2/from/this/mirror -O php-5.5.14.tar.bz2
創建PHP各版本安裝目錄
$ mkdir -p /opt/php/{5217,5328,5429,5514}
安裝PHP 5.2.17
$ cd /opt/src
$ tar -xvjf php-5.2.17.tar.bz2
$ cd php-5.2.17
$ sudo ln -s /usr/lib/x86_64-linux-gnu/libjpeg.so /usr/lib/libjpeg.so
$ sudo ln -s /usr/lib/x86_64-linux-gnu/libpng.so /usr/lib/libpng.so
$ sudo ln -s /usr/lib/x86_64-linux-gnu/libkrb5.so /usr/lib/libkrb5.so
$ wget -O debian_patches_disable_SSLv2_for_openssl_1_0_0.patch 「https://bugs.php.net/patch-display.php?bug_id=54736&patch=debian_patches...」
$ patch -p1 < debian_patches_disable_SSLv2_for_openssl_1_0_0.patch
$ ./configure --prefix=/opt/php/5217 --with-config-file-scan-dir=/opt/php/5217/etc/php.d --with-mysql --with-pdo-mysql --with-mysqli --with-iconv-dir --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --enable-discard-path --enable-safe-mode --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --with-curlwrappers --enable-mbregex --enable-fastcgi --enable-force-cgi-redirect --enable-mbstring --with-mcrypt --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --enable-ftp --disable-debug --disable-ipv6 --disable-short-tags --enable-calendar --with-mime-magic --with-imap --with-imap-ssl --with-kerberos
$ make
$ sudo make install
$ cp php.ini-recommended /opt/php/5217/lib/php.ini
安裝PHP 5.3.28
$ cd /opt/src
$ tar -xvjf php-5.3.28.tar.bz2
$ cd php-5.3.28
$ ./configure --prefix=/opt/php/5328 --with-config-file-scan-dir=/opt/php/5328/etc/php.d --with-mysql --with-pdo-mysql --with-mysqli --with-iconv-dir --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --enable-safe-mode --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --with-curlwrappers --enable-mbregex --enable-mbstring --with-mcrypt --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --enable-ftp --disable-debug --disable-ipv6 --disable-short-tags --enable-calendar --with-imap --with-imap-ssl --with-kerberos
$ make
$ sudo make install
$ cp php.ini-development /opt/php/5328/lib/php.ini
安裝PHP 5.4.29
$ cd /opt/src
$ tar -xvjf php-5.4.29.tar.bz2
$ cd php-5.4.29
$ ./configure --prefix=/opt/php/5429 --with-config-file-scan-dir=/opt/php/5429/etc/php.d --with-mysql --with-pdo-mysql --with-mysqli --with-iconv-dir --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --with-curlwrappers --enable-mbregex --enable-mbstring --with-mcrypt --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --enable-ftp --disable-debug --disable-ipv6 --disable-short-tags --enable-calendar --with-imap --with-imap-ssl --with-kerberos
$ make
$ sudo make install
$ cp php.ini-development /opt/php/5429/lib/php.ini
安裝PHP 5.5.14
$ cd /opt/src
$ tar -xvjf php-5.5.14.tar.bz2
$ cd php-5.5.14
$ ./configure --prefix=/opt/php/5514 --with-config-file-scan-dir=/opt/php/5514/etc/php.d --with-mysql --with-pdo-mysql --with-mysqli --with-iconv-dir --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --enable-mbregex --enable-mbstring --with-mcrypt --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --enable-ftp --disable-debug --disable-ipv6 --disable-short-tags --enable-calendar --with-imap --with-imap-ssl --with-kerberos
$ make
$ sudo make install
$ cp php.ini-development /opt/php/5514/lib/php.ini
4. 安裝Apache
$ sudo apt-get install apache2
啟用相應模塊
$ a2enmod headers
$ a2enmod expires
$ a2enmod actions
$ a2enmod rewrite
5. 配置Apache
$ sudo vi /etc/apache2/httpd.conf
追加如下腳本映射和虛擬主機配置，原理同Windows的配置說明。
ServerName localhost
AddType application/x-httpd-php .php
ScriptAlias /php-5217/ "/opt/php/5217/bin/"
ScriptAlias /php-5328/ "/opt/php/5328/bin/"
ScriptAlias /php-5429/ "/opt/php/5429/bin/"
ScriptAlias /php-5514/ "/opt/php/5514/bin/"
<Directory /var/www/sites>
Options Indexes FollowSymLinks Includes ExecCGI
DirectoryIndex index.php index.html
AllowOverride All
Order allow,deny
Allow from all
</Directory>
<Directory /var/www/sites/5217>
Action application/x-httpd-php "/php-5217/php-cgi"
</Directory>
<Directory /var/www/sites/5328>
Action application/x-httpd-php "/php-5328/php-cgi"
</Directory>
<Directory /var/www/sites/5429>
Action application/x-httpd-php "/php-5429/php-cgi"
</Directory>
<Directory /var/www/sites/5514>
Action application/x-httpd-php "/php-5514/php-cgi"
</Directory>
# Virtualhosts
<VirtualHost *:80>
ServerAdmin [email protected]
DocumentRoot "/var/www/sites/5217/test.local"
ServerName php5217.local
ErrorLog "/var/log/apache2/php5217.local-error.log"
CustomLog "/var/log/apache2/php5217.local-access.log" common
</VirtualHost>
<VirtualHost *:80>
ServerAdmin [email protected]
DocumentRoot "/var/www/sites/5328/test.local"
ServerName php5328.local
ErrorLog "/var/log/apache2/php5328.local-error.log"
CustomLog "/var/log/apache2/php5328.local-access.log" common
</VirtualHost>
<VirtualHost *:80>
ServerAdmin [email protected]
DocumentRoot "/var/www/sites/5429/test.local"
ServerName php5429.local
ErrorLog "/var/log/apache2/php5429.local-error.log"
CustomLog "/var/log/apache2/php5429.local-access.log" common
</VirtualHost>
<VirtualHost *:80>
ServerAdmin [email protected]
DocumentRoot "/var/www/sites/5514/test.local"
ServerName php5514.local
ErrorLog "/var/log/apache2/php5514.local-error.log"
CustomLog "/var/log/apache2/php5514.local-access.log" common
</VirtualHost>
保存配置後，創建各站點的DocumentRoot目錄，再往每個目錄放置一個phpinfo的測試文件，完成後重啟Apache伺服器並在本地hosts文件加入域名解析，現在就可以訪問各站點來測試多版本PHP共存了。

好了，基本的多版本PHP共存解決方案已經完成，如果還需要添加其他的PHP類庫支持，後續自己再調用對應php目錄下的pecl, php_config等腳本編譯安裝就可以了。

『肆』 linux終端下如何安裝Matplotlib，求完整命令

具體安裝步驟：

1，安裝python，略，linux一般自帶2.4版本

2，安裝numpy:

① Numpy的高版本對python是進行兼容的，也就是直接下載最新版就可以了

② tar –xf numpy-1.6.2.tar.gz

③ cd numpy-1.6.2

④ python setup.py build

⑤ python setup.py install

說明：此步一般不會出問題，注意此處完成後，可以驗證

不報錯，說明安裝正確

3，安裝libpng

① 下載libpng-1.2.50.tar.gz

② tar –xf libpng-1.2.50.tar.gz

③ cd libpng-1.2.50

④ ./configure

⑤ Make install

4，安裝matplotlib

① 下載matplotlib-1.1.1_notests.tar.gz，matplotlib同樣是高版本對低版本的python進行兼容，所以直接下載最新版本

② tar –xf matplotlib-1.1.1_notests.tar.gz

③ cd matplotlib-1.1.1_notests

④ python setup.py build

⑤ python setup.py install

說明，此步我出現了問題，由於開發機器上存在libpng，並且有多個版本，所以我在安裝時，跳過了libphg的安裝，報錯如下：

/usr/bin/ld: /usr/local/lib/libpng12.a(libpng12_la-png.o): relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC

/usr/local/lib/libpng12.a: could not read symbols: Bad value

說明在載入libpng12.a符號時出錯，

解決辦法是：

mv /usr/local/lib/libpng12.a /usr/local/lib/libpng12.a_

或者刪除libpng重裝

完成以上步驟，如果成功，即可在目錄下看到test.png的圖片。