apxsとはAPacheの拡張機能（eXtenSion）のこと。
標準モジュールでない、サードパーティや独自のDSOモジュールをコンパイルしてインストールすることができます。
# yum -y install httpd-devel yum -y install httpd-devel Loaded plugins: downloadonly, fastestmirror Repository 'vz-base' is missing name in configuration, using id Repository 'vz-updates' is missing name in configuration, using id Loading mirror speeds from cached hostfile * addons: www.ftp.ne.jp * base: www.ftp.ne.jp * epel: ftp.kddilabs.jp * extras: www.ftp.ne.jp * updates: www.ftp.ne.jp Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package httpd-devel.i386 0:2.2.3-43.el5.centos set to be updated --> Processing Dependency: apr-util-devel for package: httpd-devel --> Processing Dependency: apr-devel for package: httpd-devel --> Running transaction check ---> Package apr-devel.i386 0:1.2.7-11.el5_3.1 set to be updated ---> Package apr-util-devel.i386 0:1.2.7-11.el5 set to be updated --> Processing Dependency: openldap-devel for package: apr-util-devel --> Processing Dependency: db4-devel for package: apr-util-devel --> Processing Dependency: expat-devel for package: apr-util-devel --> Running transaction check ---> Package db4-devel.i386 0:4.3.29-10.el5 set to be updated ---> Package expat-devel.i386 0:1.95.8-8.3.el5_4.2 set to be updated ---> Package openldap-devel.i386 0:2.3.43-12.el5 set to be updated --> Processing Dependency: cyrus-sasl-devel >= 2.1 for package: openldap-devel --> Running transaction check ---> Package cyrus-sasl-devel.i386 0:2.1.22-5.el5_4.3 set to be updated --> Finished Dependency Resolution Dependencies Resolved Continue reading »
