Koji cannot build openldap

[Jan Safranek]

Two days ago I have successfully compiled openldap-2.3.37-1.fc8, see 
http://koji.fedoraproject.org/koji/taskinfo?taskID=83328

Today I cannot compile any openldap package, even the .src.rpm, which 
was compilable two days ago - I downloaded it from koji and executed 
"koji build --scratch dist-f8 openldap-2.3.37-1.fc8.src.rpm" with 
following result (see 
http://koji.fedoraproject.org/koji/taskinfo?taskID=85652 ):
  cc -c -I. -I../dist/.. -D_GNU_SOURCE -D_REENTRANT -O2 -g -pipe -Wall 
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector 
--param=ssp-buffer-size=4 -m64 -mtune=generic -D_REENTRANT -fPIC 
../dist/../dbm/dbm.c  -fPIC -DPIC -o .libs/dbm.o
../dist/../dbm/dbm.c: In function '__db_ndbm_open_openldap_slapd_rhl_42':
../dist/../dbm/dbm.c:241: error: expected identifier before '(' token

There is nothing suspicious in the dbm.c, it was compilable for several 
years without any problem. My (virtualized) rawhide updated today is 
able to compile the .src.rpm without any problem.

Something has changed in the buildroot so koji cannot compile my package 
  anymore. Was here any change I should be aware of? Or how can I make 
my openldap to compile again?

Thanks in advance

Jan