Building devel/silc-toolkit on MacOSX 10.3.4 fails with:

[...]
configure: creating ./config.status
config.status: creating Makefile
config.status: creating mpi.h
config.status: creating config.h
config.status: executing depfiles commands

SILC Configuration Summary:
---------------------------
 Target host ...................: powerpc-apple-darwin
 Compiler ......................: gcc
 CFLAGS ........................:  -g -O2 -Wall -finline-functions -D_REENTRANT
 CPPFLAGS ......................: -no-cpp-precomp
 LDFLAGS .......................: 
 LIBS ..........................:  -ldl -lpthread

 Installation prefix ...........: /usr/pkg
 bin directory .................: /usr/pkg/bin
 sbin directory ................: /usr/pkg/sbin
 etc directory .................: /usr/pkg/etc
 man directory .................: /usr/pkg/man
 help directory ................: /usr/pkg/help
 doc directory .................: /usr/pkg/share/doc/html/silc-toolkit
 logs directory ................: /usr/pkg/logs
 SIM directory .................: /usr/pkg/lib/silc/modules
 include directory .............: /usr/pkg/include/silc

 Compile SILC Client ...........: no
 Compile SILC Server ...........: no
 Server configuration file .....: /etc/silc/silcd.conf
 Server PID file ...............: /usr/pkg/var/silcd.pid
 SIM support ...................: yes
 IPv6 support ..................: yes
 Iconv support .................: no
 Assembler optimizations .......: no
 Arithmetic library ............: MPI
 Multi-threads support .........: yes
 Debugging enabled .............: no
 Stack-trace enabled ...........: no

Compile the sources with 'make' or 'gmake' command.
===> Building for silc-toolkit-0.9.12
Making all in lib
Making all in contrib
/bin/sh ../../libtool --mode=link gcc  -g -O2 -Wall -finline-functions -D_REENTRANT    -o libcontrib.la       -ldl -lpthread
mkdir .libs
ar cru .libs/libcontrib.a
ar: no archive members specified
usage:  ar -d [-TLsv] archive file ...
        ar -m [-TLsv] archive file ...
        ar -m [-abiTLsv] position archive file ...
        ar -p [-TLsv] archive [file ...]
        ar -q [-cTLsv] archive file ...
        ar -r [-cuTLsv] archive file ...
        ar -r [-abciuTLsv] position archive file ...
        ar -t [-TLsv] archive [file ...]
        ar -x [-ouTLsv] archive [file ...]
*** Error code 1

Stop.
bmake: stopped in /Volumes/misc/pkgsrc/devel/silc-toolkit/work/silc-toolkit-0.9.12/lib/contrib
*** Error code 1

Stop.
bmake: stopped in /Volumes/misc/pkgsrc/devel/silc-toolkit/work/silc-toolkit-0.9.12/lib
*** Error code 1

Stop.
bmake: stopped in /Volumes/misc/pkgsrc/devel/silc-toolkit/work/silc-toolkit-0.9.12
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/devel/silc-toolkit
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/devel/silc-toolkit
#