compiling

[Robert Borden]

i'm tring to compile qmailadmin 0.57 and I get this error while compiling.   make  all-recursive make[1]: Entering directory `/home/rob/qmailadmin-0.57' make[2]: Entering directory `/home/rob/qmailadmin-0.57' gcc -I. -I/var/vpopmail/include      -g -O2 -c qmailadmin.c qmailadmin.c: In function `main': qmailadmin.c:122: warning: assignment from incompatible pointer type qmailadmin.c:207: warning: assignment from incompatible pointer type qmailadmin.c:215: dereferencing pointer to incomplete type qmailadmin.c:219: dereferencing pointer to incomplete type make[2]: *** [qmailadmin.o] Error 1 make[2]: Leaving directory `/home/rob/qmailadmin-0.57' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/rob/qmailadmin-0.57' make: *** [all-recursive-am] Error 2