node.js build failure

⚡ ./configure 
Checking for program g++,c++             : ok /usr/bin/g++ 
Checking for program cpp                 : ok /usr/bin/cpp 
Checking for program ar                  : ok /usr/bin/ar 
Checking for program ranlib              : ok /usr/bin/ranlib 
Checking for g++                         : ok  
Checking for program gcc,cc              : ok /usr/bin/gcc 
Checking for gcc                         : ok  
Checking for library dl                  : ok 
Checking for library execinfo            : not found 
Checking for gnutls >= 2.5.0             : /bin/sh: pkg-config: command not found
fail 
--- libeio ---
Checking for library pthread             : ok 
Checking for function pthread_create     : ok 
Checking for function pthread_atfork     : ok 
Checking for futimes(2)                  : ok 
Checking for readahead(2)                : fail 
Checking for fdatasync(2)                : ok 
Checking for pread(2) and pwrite(2)      : ok 
Checking for sendfile(2)                 : fail 
Checking for sync_file_range(2)          : fail 
--- libev ---
Checking for header sys/inotify.h        : not found 
Checking for header sys/epoll.h          : not found 
Checking for header sys/event.h          : ok 
Checking for header sys/queue.h          : ok 
Checking for header port.h               : not found 
Checking for header poll.h               : ok 
Checking for header sys/select.h         : ok 
Checking for header sys/eventfd.h        : not found 
Checking for function inotify_init       : not found 
Checking for epoll_ctl                   : fail 
Checking for function kqueue             : not found 
Checking for function port_create        : not found 
Checking for function poll               : ok 
Checking for function select             : ok 
Checking for function eventfd            : not found 
Checking for SYS_clock_gettime           : fail 
Checking for library rt                  : not found 
Checking for function clock_gettime      : not found 
Checking for function nanosleep          : not found 
Checking for function ceil               : ok 
---- deps/udns ----
configure... udns package
checking for C compiler... gcc
checking whenever C compiler (gcc) is GNU CC... yes
checking whenever the C compiler (gcc -Wall -W -O2 -pipe)
           can produce executables... yes
checking for ranlib... ranlib
checking for getopt()... yes
checking for inet_pton() && inet_ntop()... yes
checking for socklen_t... yes
checking for libraries needed for socket and connect... ok (none needed)
checking for IPv6... yes
checking for poll()... yes
creating config.h... ok
creating Makefile... ok
creating config.status... ok
all done.
'configure' finished successfully (2.342s)
-> 2.60s
~/p/node master@5b1a535
⚡ make
Waf: Entering directory `/Users/ben/projects/node/build'
[ 1/22] cc: deps/libeio/eio.c -> build/default/deps/libeio/eio_1.o
[ 2/22] cc: deps/libev/ev.c -> build/default/deps/libev/ev_1.o
[ 3/22] cc: deps/evcom/evcom.c -> build/default/deps/evcom/evcom_3.o
[ 4/22] cc: deps/http_parser/http_parser.c -> build/default/deps/http_parser/http_parser_4.o
[ 5/22] cc: deps/coupling/coupling.c -> build/default/deps/coupling/coupling_5.o
[ 6/22] src/node_natives.h: src/node.js -> build/default/src/node_natives.h
[ 7/22] copy: src/node_version.h.in -> build/default/src/node_version.h
[ 8/22] libv8.a: deps/v8/SConstruct -> build/default/libv8.a
[ 9/22] deps/udns/libudns.a:  -> build/default/deps/udns/libudns.a
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_dn.c
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_dntosp.c
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_parse.c
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_resolver.c
scons: Reading SConscript files ...
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_init.c
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_misc.c
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_XtoX.c
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_rr_a.c
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_rr_ptr.c
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_rr_mx.c
scons: done reading SConscript files.
scons: Building targets ...
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_rr_txt.c
gcc -o obj/release/dtoa-config.o -c -Werror -Wno-uninitialized -m64 -O3 -fomit-frame-pointer -fdata-sections -ffunction-sections -ansi -mmacosx-version-min=10.4 -DV8_TARGET_ARCH_X64 -DENABLE_DEBUGGER_SUPPORT -DV8_NATIVE_REGEXP -DENABLE_LOGGING_AND_PROFILING -I/Users/ben/projects/node/deps/v8/src /Users/ben/projects/node/deps/v8/src/dtoa-config.c
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_bl.c
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_rr_srv.c
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_rr_naptr.c
Generating udns_codes.c
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c udns_codes.c
rm -f libudns.a
ar rv libudns.a udns_dn.o udns_dntosp.o udns_parse.o udns_resolver.o udns_init.o udns_misc.o udns_XtoX.o udns_rr_a.o udns_rr_ptr.o udns_rr_mx.o udns_rr_txt.o udns_bl.o udns_rr_srv.o udns_rr_naptr.o udns_codes.o 
ar: creating archive libudns.a
a - udns_dn.o
a - udns_dntosp.o
a - udns_parse.o
a - udns_resolver.o
a - udns_init.o
a - udns_misc.o
a - udns_XtoX.o
a - udns_rr_a.o
a - udns_rr_ptr.o
a - udns_rr_mx.o
a - udns_rr_txt.o
a - udns_bl.o
a - udns_rr_srv.o
a - udns_rr_naptr.o
a - udns_codes.o
ranlib libudns.a
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c dnsget.c
dnsget.c: In function ‘dbgcb’:
dnsget.c:404: warning: unused parameter ‘unused_q’
dnsget.c:404: warning: unused parameter ‘unused_data’
gcc -Wall -W -O2 -pipe -o dnsget dnsget.o -L. -ludns
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c rblcheck.c
gcc -Wall -W -O2 -pipe -o rblcheck rblcheck.o -L. -ludns
gcc -Wall -W -O2 -pipe -DHAVE_CONFIG_H -c ex-rdns.c
gcc -Wall -W -O2 -pipe -o ex-rdns ex-rdns.o -L. -ludns
/var/tmp//ccT1nW47.s:unknown:FATAL:can't create output file: obj/release/dtoa-config.o
scons: *** [obj/release/dtoa-config.o] Error 1
scons: building terminated because of errors.
Waf: Leaving directory `/Users/ben/projects/node/build'
Build failed
 -> task failed (err #2): 
	{task: libv8.a SConstruct -> libv8.a}
make: *** [all] Error 1
-> 4.77s
~/p/node master@5b1a535
⚡