debian 7 64位服务器由于lib路径的特殊性，编译php的时候，会一直抱某些lib文件找不到，比如libjpeg，libpng，libmysql等，其实我们只要用php的一个编译参数就可以解决这个问题 这个参数就是–with-libdir=
./configure –prefix=/usr/local/php5 –with-iconv –with-zlib –enable-xml –with-gettext –with-curl –enable-force-cgi-redirect –enable-mbstring –with-mcrypt –with-gd –enable-gd-native-ttf –with-mhash –enable-sockets –with-xmlrpc –enable-zip –with-mysql –with-mysqli –with-pdo-mysql –enable-ftp –with-jpeg-dir –with-freetype-dir –with-png-dir –enable-bcmath –enable-calendar –enable-exif -with-openssl –with-bz2 –with-apxs2=/usr/local/apache2/bin/apxs –with-libdir=lib/x86_64-linux-gnu
注意
–with-libdir=lib/x86_64-linux-gnu
代表实际路径是 /usr/lib/x86_64-linux-gnu