【学习笔记】系列四：Linux安装PCRE

1.下载PCRE包

首先去官网下载pcre的安装包，下载地址为：http://sourceforge.net/projects/pcre/files/pcre/

2.把安装包上传到服务器，然后解压

[root@localhost local]# tar -zxvf pcre-8.37.tar.gz

解压之后在当前目录下生成了一个文件夹：pcre-8.37

3.配置

[root@localhost pcre-8.32]# ./configure

配置完之后控制台会打印出pcre配置的摘要信息

pcre-8.37 configuration summary:

Install prefix .................. : /usr/local
C preprocessor .................. : gcc -E
C compiler ...................... : gcc
C++ preprocessor ................ : g++ -E
C++ compiler .................... : g++
Linker .......................... : /usr/bin/ld
C preprocessor flags ............ :
C compiler flags ................ : -O2 -fvisibility=hidden
C++ compiler flags .............. : -O2 -fvisibility=hidden -fvisibility-inlines-hidden
Linker flags .................... :
Extra libraries ................. :

Build 8 bit pcre library ........ : yes
Build 16 bit pcre library ....... : no
Build 32 bit pcre library ....... : no
Build C++ library ............... : yes
Enable JIT compiling support .... : no
Enable UTF-8/16/32 support ...... : no
Unicode properties .............. : no
Newline char/sequence ........... : lf
\R matches only ANYCRLF ......... : no
EBCDIC coding ................... : no
EBCDIC code for NL .............. : n/a
Rebuild char tables ............. : no
Use stack recursion ............. : yes
POSIX mem threshold ............. : 10
Internal link size .............. : 2
Match limit ..................... : 10000000
Match limit recursion ........... : MATCH_LIMIT
Build shared libs ............... : yes
Build static libs ............... : yes
Use JIT in pcregrep ............. : no
Buffer size for pcregrep ........ : 20480
Link pcregrep with libz ......... : no
Link pcregrep with libbz2 ....... : no
Link pcretest with libedit ...... : no
Link pcretest with libreadline .. : no
Valgrind support ................ : no
Code coverage ................... : no

4.编译

执行make操作：

[root@localhost pcre-8.37]# make

编译完后可以执行make check进行测试（这一步非必须）

Testing pcregrep version 8.372015-04-28

Testing pcregrep main features
Skipping pcregrep UTF-8 tests: no UTF-8 support in PCRE library
Testing pcregrep newline settings
PASS: RunGrepTest
==================
All 5 tests passed
==================
make[2]: Leaving directory `/usr/local/pcre-8.37'
make[1]: Leaving directory `/usr/local/pcre-8.37'
[root@localhost pcre-8.32]#

上面的make check结果中有一句:

Skipping pcregrep UTF-8 tests: no UTF-8 support in PCRE library

这是因为在前面步骤中执行./configuration配置时没有加上对utf-8的支持

如果要加上对utf-8的支持可以在./configuration时加上参数：

[root@localhost pcre-8.37]# ./configure --enable-utf8

配置完后再重新make

make完后再次执行make check结果如下：

Testing pcregrep version 8.372015-04-28

Testing pcregrep main features
Testing pcregrep UTF-8 features
Testing pcregrep newline settings
PASS: RunGrepTest
==================
All 5 tests passed
==================
make[2]: Leaving directory `/usr/local/pcre-8.37'
make[1]: Leaving directory `/usr/local/pcre-8.37'
[root@localhost pcre-8.37]#

5.安装

执行make install操作：

[root@localhost pcre-8.37]# make install

make install结束后pcre编译安装流程就结束了。