[Pgsql-ayuda] Ayuda

Hola a todos , yo estoy trabajando con PostgreSql 7.1.3 y cygwin. Quiero compilar este programa pero recibo estos errores

Mi Ambiente es

PostgreSql Funetes /usr/src/postgresql7.1.3
PostgreSQl Librerias /usr/include/postgresql, /lib

Commando
$ gcc -O2 -shared -o plpgj.so -I/usr/src/postgresql-7.1.3/src -I/usr/src/post
gresql-7.1.3/src/include -I/usr/src/postgresql-7.1.3/src/backend -I/usr/includ
e -I/usr/local/include -I/usr/include/postgresql -lpostgres plpgj.c -g

Errores:

plpgj.c:158: warning: #warning This is not optimized, maybe it is a rework.
plpgj.c:209: warning: #warning here we should implement something execution circ
le
plpgj.c:287: warning: #warning here we should implement something execution circ
le
plpgj.c: In function `plpgj_call_handler':
plpgj.c:83: warning: passing arg 1 of `pg_dlopen' discards qualifiers from point
er target type
plpgj.c:105: warning: passing arg 2 of `connect' from incompatible pointer type
/cygdrive/c/temp/cc1MopKU.o: In function `plpgj_call_handler':
/plpgj/src/plpgj/plpgj.c:79: undefined reference to `SPI_connect'
/plpgj/src/plpgj/plpgj.c:80: undefined reference to `elog'
/plpgj/src/plpgj/plpgj.c:83: undefined reference to `pg_dlopen'
/plpgj/src/plpgj/plpgj.c:92: undefined reference to `elog'
collect2: ld returned 1 exit status

Gracias de antemano
Víctor Pérez

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