Install Problems

when i ./configure
It works fine dose everything fine
i do "# make"
and get :
gcc -I../include -I../backend -O2 -Wall -Wmissing-prototypes
-Wmissing-declarations -o postgres access/SUBSYS.o bootstrap/SUBSYS.o
catalog/SUBSYS.o commands/SUBSYS.o executor/SUBSYS.o lib/SUBSYS.o
libpq/SUBSYS.o main/SUBSYS.o parser/SUBSYS.o nodes/SUBSYS.o
optimizer/SUBSYS.o port/SUBSYS.o postmaster/SUBSYS.o regex/SUBSYS.o
rewrite/SUBSYS.o storage/SUBSYS.o tcop/SUBSYS.o
utils/SUBSYS.o ../utils/version.o -lcrypt -lnsl -ldl -lm -lutil
-lncurses - export-dynamic
/usr/lib/libdl.a(dlsym.o): In function `doit.2':
dlsym.o(.text+0x22): undefined reference to `_dl_default_scope'
dlsym.o(.text+0x4c): undefined reference to `_dl_default_scope'
make[1]: *** [postgres] Error 1
make[1]: Leaving directory `/home/dgman/postgresql-7.0.3/src/backend'
make: *** [all] Error 2
eagle:/home/dgman/postgresql-7.0.3/src#
And I can Not Figure It Out!!

please Help I am fairly new To PGsql

(this is A Debian Server)

Thnx Jeremy D. May