[horde] compile error

[RYAN vAN GINNEKEN]

I am having trouble with installation
Freebsd 4.8
Imp3
trying to install from the ports tree get the following error codes

l/include            -I/usr/local/include/db41  -c module.c
cc -O -pipe -DNO_IDEA -I../../include -I../../include   -D_REENTRANT 
-D_THREAD_SAFE      -I/usr/local/include            
-I/usr/local/include/db41  -c mra.c
cc: Internal compiler error: program cc1 got fatal signal 11
*** Error code 1

Stop in /usr/ports/net/openldap21/work/openldap-2.1.22/servers/slapd.
*** Error code 1

Stop in /usr/ports/net/openldap21/work/openldap-2.1.22/servers.
*** Error code 1

Stop in /usr/ports/net/openldap21/work/openldap-2.1.22.
*** Error code 1

Stop in /usr/ports/net/openldap21.
*** Error code 1

Stop in /usr/ports/mail/turba.
*** Error code 1

Stop in /usr/ports/mail/imp3.

please help