在编译php的过程中，经常会出现一些错误信息，网络上搜索了一下还是比较有用的，收藏一下！
1) Configure: error: xml2-config not found. Please check your libxml2 installation. Solutions : Quote: #yum install libxml2 libxml2-devel (For Redhat & Fedora) # aptitude install libxml2-dev (For ubuntu) 2) Checking for pkg-config… /usr/bin/pkg-config configure: error: Cannot find OpenSSL’s <evp.h> Solutions : Quote: #yum install openssl openssl-devel 3) Configure: error: Please reinstall the BZip2 distribution Solutions : Quote: # yum install bzip2 bzip2-devel 4) Configure: error: Please reinstall the libcurl distribution - easy.h should be in <curl-dir>/include/curl/ Solutions : Quote: # yum install curl curl-devel (For Redhat & Fedora) # install libcurl4-gnutls-dev (For Ubuntu) 5) Configure: error: libjpeg.(also) not found. Solutions : Quote: # yum install libjpeg libjpeg-devel 6) Configure: error: libpng.(also) not found. Solutions : Quote: # yum install libpng libpng-devel 7) Configure: error: freetype.h not found. Solutions : Quote: #yum install freetype-devel 8) Configure: error: Unable to locate gmp.h Solutions : Quote: # yum install gmp-devel 9) Configure: error: Cannot find MySQL header files under /usr. Note that the MySQL client library is not bundled anymore! Solutions : Quote: # yum install mysql-devel (For Redhat & Fedora) # apt-get install libmysql++-dev (For Ubuntu) 10) Configure: error: Please reinstall the ncurses distribution Solutions : Quote: # yum install ncurses ncurses-devel 11) Checking for unixODBC support… configure: error: ODBC header file ‘/usr/include/sqlext.h’ not found! Solutions : Quote: # yum install unixODBC-devel 12) Configure: error: Cannot find pspell Solutions : Quote: # yum install pspell-devel 13) configure: error: mcrypt.h not found. Please reinstall libmcrypt. Solutions : Quote: # yum install libmcrypt libmcrypt-devel (For Redhat & Fedora) # apt-get install libmcrypt-dev 14) Configure: error: snmp.h not found. Check your SNMP installation. Solutions : Quote: # yum install net-snmp net-snmp-devel 15)configure: error: Please reinstall libmhash – I cannot find mhash.h #yum install mhash-devel