编译错误，lpcre是什么东东？

graydream

装mod_jk2

1. e2/jk_config_file.lo ../../../build/jk2/apache2/jk_endpoint.lo ../../../build/jk2/apache2/jk_env.lo ../../../build/jk2/apache2/jk_handler_logon.lo ../../../build/jk2/apache2/jk_handler_response.lo ../../../build/jk2/apache2/jk_logger_file.lo ../../../build/jk2/apache2/jk_logger_win32.lo ../../../build/jk2/apache2/jk_map.lo ../../../build/jk2/apache2/jk_md5.lo ../../../build/jk2/apache2/jk_msg_ajp.lo ../../../build/jk2/apache2/jk_mutex.lo ../../../build/jk2/apache2/jk_mutex_proc.lo ../../../build/jk2/apache2/jk_mutex_thread.lo ../../../build/jk2/apache2/jk_nwmain.lo ../../../build/jk2/apache2/jk_objCache.lo ../../../build/jk2/apache2/jk_pool_apr.lo ../../../build/jk2/apache2/jk_registry.lo ../../../build/jk2/apache2/jk_requtil.lo ../../../build/jk2/apache2/jk_shm.lo ../../../build/jk2/apache2/jk_signal.lo ../../../build/jk2/apache2/jk_uriEnv.lo ../../../build/jk2/apache2/jk_uriMap.lo ../../../build/jk2/apache2/jk_user.lo ../../../build/jk2/apache2/jk_vm_default.lo ../../../build/jk2/apache2/jk_worker_ajp13.lo ../../../build/jk2/apache2/jk_workerEnv.lo ../../../build/jk2/apache2/jk_worker_jni.lo ../../../build/jk2/apache2/jk_worker_lb.lo ../../../build/jk2/apache2/jk_worker_run.lo ../../../build/jk2/apache2/jk_worker_status.lo ../../../build/jk2/apache2/jk_jni_aprImpl.lo ../../../build/jk2/apache2/jk_logger_apache2.lo ../../../build/jk2/apache2/jk_map_aprtable.lo ../../../build/jk2/apache2/jk_service_apache2.lo ../../../build/jk2/apache2/mod_jk2.lo
   
2. /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/../../../../i686-pc-linux-gnu/bin/ld: cannot find -lpcre
   
3. collect2: ld returned 1 exit status
   
4. make[1]: *** [../../../build/jk2/apache2/libjkjni.la] Error 1
   
5. make[1]: *** Waiting for unfinished jobs....
   
6. make[1]: Leaving directory `/var/tmp/portage/mod_jk2-2.0.4/work/jakarta-tomcat-connectors-jk2-2.0.4-src/jk/native2/server/apache2'

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