安装PHP时显示，xml2-config not found

这里需要安装的是libxml2-dev软件包(该软件为Ubuntu-Server自带的，需要使用Ubuntu-Server光盘安装)，操作如下：

sudo apt-get install

libxml2-dev

库文件安装完成后，重新配置PHP

编译完成后将会看到“Thank you for using PHP.”的字样，表明PHP已经配置成功了。

错误1：Cannot find OpenSSL‘s

解决：yum install openssl openssl-devel

ln -s /usr/lib64/libssl.so /usr/lib/

错误2：configure: error: xml2-config not found. Please check your libxml2 installation.

解决：libxml2已经安装，还报这个错误，还需要安装libxml2-devel

错误3：error: Please reinstall the BZip2 distribution

解决：yum -y install bzip2-devel

错误4：checking for cURL in default path... not found

解决：yum -y install curl-devel

5：configure: error: jpeglib.h not found.

：yum -y install libjpeg-devel

6：configure: error: png.h not found.

：yum -y install libpng-devel

7：Configure: error: freetype.h not found.

：yum install freetype-devel

8：configure: error: Unable to locate gmp.h

：yum -y install gmp-devel

9：configure: error: mcrypt.h not found. Please reinstall libmcrypt.

tar zxflibmcrypt-2.5.8.tar.gz

cdlibmcrypt-2.5.8

./configure

make && make install

10：configure: error: Don‘t know how to define struct flock on this system, set --enable-opcache=no

：编辑 /etc/ld.so.conf 加入/usr/local/lib，在执行ldconfig。

这个比较麻烦，参考http://www.68idc.cn/help/jiabenmake/qita/2014022169481.html

11：configure: error: Please reinstall readline - I cannot find readline.h

：yum -y install readline-devel

12：configure: error: xslt-config not found. Please reinstall the libxslt >= 1.1.0 distribution

：yum -y install libxslt-devel

13.configure: error: Please reinstall the libcurl distribution -

easy.h should be in /include/curl/

安装curl-devel

14、mcrypt.h not found. Please reinstall libmcrypt

libmcrypt-2.5.8

15、Don‘t know how to define struct flock on this system, set --enable-opcache=no

vim /etc/ld.so.conf.d/local.conf(vi etc/ld.so.conf) # 编辑库文件(该文件可能不存在，不存在则创建一个新的)

/usr/local/lib # 添加该行

/usr/local/lib64 # 64位系统的除了添加上一行，还需要添加此行

:wq # 保存退出

ldconfig -v # 使之生效

16、Please reinstall readline - I cannot find readline.h

安装readline-devel

17、WARNING: unrecognized options: --enable-bz2

删了--enable-bz2