Error trying to build otp_src_R6B-0

[Simon Raahauge DeSantis]

I'm trying to compile Erlang/OTP (whatever it's called) on a
NetBSD-1.4.2/SPARC system. THe build dies like this: 
erlc -W  -bbeam  -I/home/xiamin/apple/otp_src_R6B-0/lib/stdlib -o../ebin
asn1ct_parser.erl
Can't allocate 2056916 bytes of memory
gmake[2]: *** [../ebin/asn1ct_parser.beam] Abort trap (core dumped)
gmake[2]: Leaving directory `/home/xiamin/apple/otp_src_R6B-0/lib/asn1/src'
gmake[1]: *** [opt] Error 2
gmake[1]: Leaving directory `/home/xiamin/apple/otp_src_R6B-0/lib/asn1'
gmake: *** [opt] Error 2
*** Error code 2

Stop.
xiamin@REDACTED ~/apple/otp_src_R6B-0 % 

Any insights into how I can fix this? 
TIA
-- 
-Simon Raahauge DeSantis