PHP的安装虽然有时候很简单，可是如果应用一多，我们安装起来就很头痛了！出错最多的就是安装PHP扩展的时候了。其实不管是你是Apache类的应用还是Nginx类的，PHP的安装都不是很简单，虽然网上有很多configure参数，但是那不一定是适合你的，因为很多都直接关系着你的系统版本和内核。因此要自己亲自不断的调试，才能完全安装成功。

本文总结了一些常见的configure错误信息和解决这些错误的经验。

1、configure: error: No curses/termcap library found

网上有的说法是：–with-named-curses-libs=/usr/lib/libncursesw.so.5
其实是不对的，虽然能解决configure的错误，但是make的时候会提示错误，正确的做法应该是
centos: yum -y install ncurses-devel
debian: apt-get install libncurses5-dev

2、configure: error: xml2-config not found. Please check your libxml2 installation.
centos: yum -y install libxml2 libxml2-devel
debian: apt-get install libxml2-dev

3、configure: error: Cannot find OpenSSL’s
centos: yum -y install openssl-devel

4、configure: error: libjpeg.(a|so) not found
centos: yum -y install gd
centos: yum -y install gd-devel
debian: apt-get install libjpeg-dev

5、configure: error: libpng.(a|so) not found.
apt-get install libpng12-dev

6、configure: error: cannot find output from lex; giving up
yum -y install flex

7、configure: error: mod_deflate has been requested but can not be built due to prerequisite failures
centos: yum -y install zlib-devel openssl-devel
debian: apt-get install zlib1g-dev

8、configure: error: libxpm.(a|so) not found.
centos: yum -y install libxpm-dev
debian: apt-get install libxpm-dev

9、configure: error: freetype.h not found.
centos: yum install freetype-devel
debian: apt-get install libfreetype6-dev

10、configure: error: …No recognized SSL/TLS toolkit detected
centos: yum -y install libssl-dev
debian: apt-get install libssl-dev

11、Configure: error: Please reinstall the BZip2 distribution
centos: yum install bzip2 bzip2-devel
debian: apt-get install bzip2-devel

12、Configure: error: Please reinstall the libcurl distribution – easy.h should be in /include/curl/
centos: yum install curl curl-devel (For Redhat & Fedora)
# install libcurl4-gnutls-dev (For Ubuntu)

13、Configure: error: Unable to locate gmp.h
centos: yum install gmp-devel

14、Configure: error: Cannot find MySQL header files under /usr. Note that the MySQL client library is not bundled anymore!
yum install mysql-devel (For Redhat & Fedora)
# apt-get install libmysql++-dev (For Ubuntu)

15、Configure: error: Please reinstall the ncurses distribution
Solutions :
centos: yum install ncurses ncurses-devel

16、Checking for unixODBC support… configure: error: ODBC header file ‘/usr/include/sqlext.h’ not found!
Solutions :
centos: yum install unixODBC-devel

17、Configure: error: Cannot find pspell
Solutions :
centos: yum install pspell-devel

18、configure: error: mcrypt.h not found. Please reinstall libmcrypt.
Solutions :
yum install libmcrypt libmcrypt-devel (For Redhat & Fedora)
# apt-get install libmcrypt-dev

19、Configure: error: snmp.h not found. Check your SNMP installation.
Solutions :
yum install net-snmp net-snmp-devel

20、开启LDAP服务还需要
yum -y install openldap-devel openldap-servers openldap-clients

21、configure: error: cannot find output from lex; giving up
centos: yum -y install flex

22、configure: error: mod_deflate has been requested but can not be built due to prerequisite failures
centos: yum -y install zlib-devel openssl-devel
debian: apt-get install zlib1g-dev