postgresql-7.4 make error: tuptoaster.c: In function `toast_delete_datum'

im not sure if this is the correct mailing list, please correct me if it is not.
my gcc is version 3.2, configure runs fine i deativated readline-support...but this error occours:

gcc -O2 -fno-strict-aliasing -Wall -Wmissing-prototypes -Wmissing-declarations -I../../../../src/include -D_GNU_SOURCE
-c -o tuptoaster.o tuptoaster.c
 
tuptoaster.c: In function `toast_delete_datum':
tuptoaster.c:973: `F_OIDEQ' undeclared (first use in this function)

any ideas