[Exim] Exim build problems

Hey everyone - I've built Exim on numerous occasions, and never encountered this one before. When trying to compile Exim (Both 3.3x and 4.10), the compile is dying with the following error:

gcc -c -O exim_dbmbuild.c
exim_dbmbuild.c: In function `main':
exim_dbmbuild.c:121: warning: passing arg 2 of pointer to function from incompatible pointer type
exim_dbmbuild.c:121: warning: passing arg 4 of pointer to function makes pointer from integer without a cast
exim_dbmbuild.c:121: too few arguments to function
make[1]: *** [exim_dbmbuild] Error 1
make[1]: Leaving directory `/root/exim-4.10/build-Linux-i386'
make: *** [go] Error 2

The build is on a LinuxFromScratch machine, using GCC 3.2, with both Berkeley DB and gdbm installed.

Anyone got any ideas?

Jeremy