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Dear all,   I got these error when I compiled SqWebmail : gcc -DHAVE_CONFIG_H -I. -I. -I.     -I/home/vpopmail/include -g -O2 -Wall -I.. - I./.. -c authvchkpw.c 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 `/home/inu/sqwebmail-3.0.0/authlib' make: *** [all-recursive] Error 1   How can I fix this ? Anyone can help ?   Thanks, Inu