Dear FreeRadiusDevel I am trying to install freeradius 1.0.5 on my linux server, which running RedHat Enterpise Linux 4.0, and the database is sybase15.0. When compiling the moduel rlm_sql_sybase, a stange error occured. The message dumped into my screen is as following: ------------------------------------------------------------------------------------------- ... sql_sybase.c:666: warning: nested extern declaration of `sql_error' sql_sybase.c:262: warning: redundant redeclaration of 'sql_error' sql_sybase.c:262: warning: previous implicit declaration of 'sql_error' was here sql_sybase.c:666: warning: format argument is not a pointer (arg 3) sql_sybase.c: At top level: sql_sybase.c:682: warning: no previous prototype for 'sql_fetch_row' sql_sybase.c: In function `sql_fetch_row': sql_sybase.c:702: warning: nested extern declaration of `sql_error' sql_sybase.c:262: warning: redundant redeclaration of 'sql_error' sql_sybase.c:262: warning: previous implicit declaration of 'sql_error' was here sql_sybase.c:702: warning: format argument is not a pointer (arg 3) sql_sybase.c:706: warning: nested extern declaration of `sql_close' sql_sybase.c:381: warning: redundant redeclaration of 'sql_close' sql_sybase.c:381: warning: previous implicit declaration of 'sql_close' was here sql_sybase.c: At top level: sql_sybase.c:767: error: conflicting types for 'sql_error' sql_sybase.c:262: error: previous implicit declaration of 'sql_error' was here sql_sybase.c: In function `sql_error': sql_sybase.c:830: warning: return makes pointer from integer without a cast sql_sybase.c: At top level: sql_sybase.c:842: warning: static declaration of 'sql_close' follows non-static declaration sql_sybase.c:381: warning: previous implicit declaration of 'sql_close' was here sql_sybase.c:896: warning: static declaration of 'sql_finish_select_query' follows non-static declaration sql_sybase.c:579: warning: previous implicit declaration of 'sql_finish_select_query' was here sql_sybase.c:896: warning: unused parameter 'config' sql_sybase.c:873: warning: unused parameter 'config' sql_sybase.c:842: warning: unused parameter 'sqlsocket' sql_sybase.c:842: warning: unused parameter 'config' sql_sybase.c:767: warning: unused parameter 'sqlsocket' sql_sybase.c:767: warning: unused parameter 'config' sql_sybase.c:746: warning: unused parameter 'sqlsocket' sql_sybase.c:746: warning: unused parameter 'config' sql_sybase.c:621: warning: unused parameter 'sqlsocket' sql_sybase.c:621: warning: unused parameter 'config' sql_sybase.c:303: warning: unused parameter 'config' sql_sybase.c:54: warning: unused parameter 'cp' sql_sybase.c:55: warning: unused parameter 'chp' sql_sybase.c:92: warning: unused parameter 'context' sql_sybase.c:93: warning: unused parameter 'conn' sql_sybase.c:133: warning: unused parameter 'context' make: *** [sql_sybase.lo] Error 1 -------------------------------------------------------------------------------------------------- Attention should be paied to these two lines: sql_sybase.c:767: error: conflicting types for 'sql_error' sql_sybase.c:262: error: previous implicit declaration of 'sql_error' was here somebody tell me what is going on!!!!!! I installed the same version FR on the RedHat Personal 9.0 successfully!!!! Thanks a lot!