ZNC make error

ZNC 1.6.1 configured

prefix:       /usr/local
debug:        no
ipv6:         yes
openssl:      yes
dns:          threads
perl:         no
python:       no
swig:         not needed
cyrus:        no
tcl:          no
charset:      no (icu-uc not found via pkg-config)
zlib:         yes
run from src: no

Now you can run "make" to compile ZNC
root@mochie:/usr/local/src/znc-1.6.1# make
Packing man page znc.1.gz...
Packing man page znc-buildmod.1.gz...
Building module autocycle...
Linking  module autocycle...
Building module webadmin...
g++: internal compiler error: Killed (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.
Makefile:116: recipe for target 'webadmin.o' failed
make[1]: *** [webadmin.o] Error 4
Makefile:105: recipe for target 'modules' failed
make: *** [modules] Error 2