$ rake
(in /home/clgc/languages/rbx-cpp)
gcc -Ivm/external_libs/libtommath -Ivm/external_libs/onig -Ivm/external_libs/libffi/include -Ivm/external_libs/libltdl -Ivm/external_libs/libev -Ivm/external_libs/llvm/include -Ivm/test/cxxtest -Ivm -I. -Wall -ggdb -gdwarf-2 -I/home/clgc/languages/rbx-cpp/vm/external_libs/llvm/include -D_DEBUG -I/home/clgc/usr/include -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -fomit-frame-pointer -I/home/clgc/usr/include -c -o vm/builtin/immediates.o vm/builtin/immediates.cpp 2>&1
In file included from vm/builtin/object.hpp:5,
                 from vm/builtin/immediates.hpp:4,
                 from vm/builtin/immediates.cpp:1:
vm/oop.hpp:96: error: ‘size_t’ does not name a type
In file included from vm/builtin/immediates.hpp:4,
                 from vm/builtin/immediates.cpp:1:
vm/builtin/object.hpp:212: error: ‘hashval’ does not name a type
In file included from vm/objects.hpp:39,
                 from vm/builtin/immediates.cpp:3:
vm/builtin/string.hpp:28: error: ‘hashval’ does not name a type
vm/builtin/string.hpp:50: error: ‘hashval’ does not name a type
In file included from vm/objects.hpp:42,
                 from vm/builtin/immediates.cpp:3:
vm/builtin/bignum.hpp:159: error: ‘hashval’ does not name a type
In file included from vm/objects.hpp:48,
                 from vm/builtin/immediates.cpp:3:
vm/builtin/hash.hpp:28: error: ‘hashval’ has not been declared
vm/builtin/hash.hpp:30: error: ‘hashval’ has not been declared
vm/builtin/hash.hpp:32: error: ‘hashval’ has not been declared
vm/builtin/hash.hpp:33: error: ‘hashval’ has not been declared
vm/builtin/hash.hpp:35: error: ‘hashval’ has not been declared
vm/builtin/hash.hpp:36: error: ‘hashval’ has not been declared
vm/builtin/hash.hpp:38: error: ‘hashval’ has not been declared
vm/builtin/hash.hpp:40: error: ‘hashval’ has not been declared
vm/builtin/hash.hpp:41: error: ‘hashval’ has not been declared
vm/builtin/hash.hpp:42: error: ‘hashval’ has not been declared
rake aborted!
Command failed with status (1): [gcc -Ivm/external_libs/libtommath -Ivm/ext...]

(See full trace by running task with --trace)