Mark this broken for 3.0:

cc -c -g -I./splay -I/root/include -DHAVE_MMAP -DSTDHEADERS -DDEBUG -DTRACE -DPROFILESIZES _emalloc.c -o _emalloc.o
In file included from defs.h:51,

from _emalloc.c:5:

externs.h:110: conflicting types for `mmap'
/usr/include/stdio.h:282: previous declaration of `mmap'

• Error code 1

Stop.