mod_backhand.so: please recompile it with -DEAPI -- How?

Hello,

after compiling mod_backhand.so (1.2.2) and copying it to /usr/lib/apache
(1.3.20) I get this message in /var/log/httpd/error_log:

 [warn] Loaded DSO /usr/lib/apache/mod_backhand.so uses plain Apache 1.3
API, this module might crash under EAPI! (please recompile it with -DEAPI)

And then a lot of segmentation faults for many pids:

child pid 1969 exit signal Segmentation fault (11)

So I tried the following:

export CFLAGS='-DEAPI'
./precompile (in backhand dir)
./configure .... (in apache dir)
make (in apache dir)

The new mod_backhand.so has exactly the same size as the old one and it does
not change anything. But some files in apache_1.3.20/src/modules/backhand
contain "EAPI":

Makefile:EXTRA_CFLAGS=-DEAPI `$(SRCDIR)/apaci`
config.status:s%@CFLAGS@%-DEAPI%g

Can anyone help?

Kind Regard

Thomas