[Exim] Compiling Error In function `dbfn_open'

Hi,

here is my compile log, can anyone help me please?

- RedHat 8.0
- exim-4.14

[...]
sed -e "s?CONFIGURE_FILE_USE_NODE??" \
-e "s?CONFIGURE_FILE?/usr/exim/configure?" \
-e "s?BIN_DIRECTORY?/usr/exim/bin?" \
-e "s?PERL_COMMAND?/usr/bin/perl?" \
../src/exim_checkaccess.src > exim_checkaccess-t
>>> exim_checkaccess script built

gcc -c -O -o exim_dbmbuild.o exim_dbmbuild.c
gcc -o exim_dbmbuild exim_dbmbuild.o \
-lnsl -lcrypt -ldb

>>> exim_dbmbuild utility built

gcc -c -O  \
                              -DCOMPILE_UTILITY \
                              -DEXIM_DUMPDB \
                              -o exim_dumpdb.o exim_dbutil.c gcc -c -O
\
                              -DCOMPILE_UTILITY \
                              -DOS_LOAD_AVERAGE \
                              -DFIND_RUNNING_INTERFACES \
                              -o util-os.o os.c
gcc -O  -o exim_dumpdb  exim_dumpdb.o util-os.o util-store.o \
  -lnsl -lcrypt  -ldb
exim_dumpdb.o: In function `dbfn_open':
exim_dumpdb.o(.text+0x222): undefined reference to
`os_non_restarting_signal'
collect2: ld returned 1 exit status
make[1]: *** [exim_dumpdb] Error 1
make[1]: Leaving directory `/root/sources/exim-4.14/build-Linux-athlon'
make: *** [go] Error 2

Thanks!
patrick