Mozilla build error on Mac OS X redux

gistfile1.txt

 0:06.62 There are no private exports.
 0:07.09 cd include; /Applications/Xcode5-DP.app/Contents/Developer/usr/bin/make libs
 0:07.14 cd src; /Applications/Xcode5-DP.app/Contents/Developer/usr/bin/make libs
 0:07.15 cd builtins; /Applications/Xcode5-DP.app/Contents/Developer/usr/bin/make libs
 0:07.16 mkdir: /Users/awilcox/Code/moz/mozilla-central/obj-ff-dbg/security/nss/lib/freebl: File exists
 0:07.20 cd mangle; /Applications/Xcode5-DP.app/Contents/Developer/usr/bin/make libs
 0:07.27 cd legacydb; /Applications/Xcode5-DP.app/Contents/Developer/usr/bin/make libs
 0:07.67 duplicate symbol ___sputc in:
 0:07.67     host_nsinstall.o
 0:07.67     host_pathsub.o
 0:07.67 ld: 1 duplicate symbol for architecture x86_64
 0:07.67 clang: error: linker command failed with exit code 1 (use -v to see invocation)
 0:07.67 make[6]: *** [nsinstall_real] Error 1
 0:07.67 make[5]: *** [config/nsinstall] Error 2
 0:07.67 make[5]: *** Waiting for unfinished jobs....
 0:07.69 make[4]: *** [default] Error 2
 0:07.69 make[3]: *** [tier_js] Error 2
 0:07.69 make[2]: *** [default] Error 2
 0:07.69 make[1]: *** [realbuild] Error 2
 0:07.69 make: *** [build] Error 2
 0:07.72 2 compiler warnings present.
awilcox on ind-wkst040 mozilla-central:                          [s008 Mon 15 18:03]