今天在搭建LNMP编译PHP时，报错：configure: error: jpeglib.h not found.本文就和大家分享如何遇到此类问题要怎么解决。

[root@cac3 php-5.6.22]# ./configure \
> --prefix=/usr/local/php5/ \
> --enable-fpm \
> --enable-mbstring \
> --enable-bcmath \
> --enable-sockets \
> --with-config-file-path=/usr/local/php5/etc \
> --with-mysql=/usr/local/mysql/ \
> --with-mysqli=/usr/local/mysql/bin/mysql_con
mysql_config                mysql_convert_table_format
mysql_config_editor         
> --with-mysqli=/usr/local/mysql/bin/mysql_config \
> --with-gd \
> --with-gettext \
> --with-jpeg-dir 

执行上述命令后出现以下报错：

configure: error: jpeglib.h not found.

解决方案如下：

[root@cac3 php-5.6.22]# rpm -qa | grep libjpeg 
libjpeg-turbo-1.2.90-5.el7.x86_64
[root@cac3 php-5.6.22]# yum -y install libjpeg-devel
已加载插件：langpacks, product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
正在解决依赖关系
--> 正在检查事务
---> 软件包 libjpeg-turbo-devel.x86_64.0.1.2.90-5.el7 将被 安装

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--> 解决依赖关系完成

......

[root@cac3 php-5.6.22]# yum list installed | grep libjpeg
libjpeg-turbo.x86_64                      1.2.90-5.el7             @anaconda/7.4
libjpeg-turbo-devel.x86_64                1.2.90-5.el7             @yaya        

[root@cac3 php-5.6.22]# rpm -ql libjpeg-turbo

/usr/lib64/libjpeg.so.62
/usr/lib64/libjpeg.so.62.1.0
/usr/share/doc/libjpeg-turbo-1.2.90
/usr/share/doc/libjpeg-turbo-1.2.90/ChangeLog.txt
/usr/share/doc/libjpeg-turbo-1.2.90/README
/usr/share/doc/libjpeg-turbo-1.2.90/README-turbo.txt
/usr/share/doc/libjpeg-turbo-1.2.90/change.log
/usr/lib/libjpeg.so.62
/usr/lib/libjpeg.so.62.1.0
/usr/share/doc/libjpeg-turbo-1.2.90
/usr/share/doc/libjpeg-turbo-1.2.90/ChangeLog.txt
/usr/share/doc/libjpeg-turbo-1.2.90/README
/usr/share/doc/libjpeg-turbo-1.2.90/README-turbo.txt

/usr/share/doc/libjpeg-turbo-1.2.90/change.log

再次编译即可成功。

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