[Exim] Problem compiling Exim on AIX system

I'am a newbie in MTA, and I'm French. So excuse me in advance for my
english.

So I try to compile Exim 4.24 on a AIX 4.3 with a Berkeley DB 4.1.25

I first install Berkeley DB without problem !
I extract Exim package, prepare Makefile in the "Local" directory,
copy the eximon.conf into the "Local" directory too.

In the top level directory of Exim, i launch the "make" command, and
I have this result :

/test/exim/exim-4.24>make
`Makefile' is up to date.

        /bin/sh ../scripts/Configure-config.h
The destination "buildconfig" is up to date.
exec() : 0509-036 Impossible to load the ./buildconfig program because of the
following errors
        0509-022 Impossible to load the library libc.a[shr.o].
        0509-026 System error : A file or a directory of the access path does
not exist.
make : 1254-004 Error code of the last command : 1.

Stop.
make : 1254-004 Error code of the last command : 2.


Stop.

HELP ME PLEASE !!!