Fail to install sqwebmail

[eddy]

Hi, guys... I want to install sqwebmail on my mailserver, I have already install qmail and virtual popmail (using vchkpw)on red hat 6.2. My step is same with INSTALL : 1. ./configue 2. make configure-check 3. make When I "make" it show error      authvchkpw.c: In function `auth_vchkpw_changepass':      authvchkpw.c:142: warning: assignment from incompatible pointer type      authvchkpw.c:151: dereferencing pointer to incomplete type      authvchkpw.c:151: dereferencing pointer to incomplete type      make[1]: *** [authvchkpw.o] Error 1      make[1]: Leaving directory `/usr/local/src/sqwebmail-3.0.0/authlib'      make: *** [all-recursive] Error 1   Can Anyone help me how to fix it and give me another document for installing sqwebmail, coz I think the file INSTALL is lack of information   Thanks   Eddy