In today's build of the experimental branch (revision 1719), I got the following nastygram: /usr/bin/g++ -I/usr/local/include -D_DEBUG -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -O3 -fno-common -Woverloaded-virtual -I. -I./include -g -Wall -arch ppc -arch i386 -Wno-parentheses -Wno-deprecated-declarations -Werror -c vm.cpp -o vm.o vm.cpp: In constructor 'RoxorVM::RoxorVM()': vm.cpp:210: error: 'CodeGenOpt' has not been declared vm.cpp:210: error: 'None' was not declared in this scope vm.cpp: In constructor 'RoxorVM::RoxorVM()': vm.cpp:210: error: 'CodeGenOpt' has not been declared vm.cpp:210: error: 'None' was not declared in this scope lipo: can't figure out the architecture type of: /var/tmp//ccrdSEKd.out rake aborted! Command failed with status (1): [/usr/bin/g++ -I/usr/local/include -D_DEBU...] ... Laurent informed me that I needed to update my copy of LLVM, as discussed in the MacRuby README file. In order to do this on a PowerPC, I had to modify the commands slightly: ... UNIVERSAL_ARCH="ppc i386" ... -r -- http://www.cfcl.com/rdm Rich Morin http://www.cfcl.com/rdm/resume rdm@cfcl.com http://www.cfcl.com/rdm/weblog +1 650-873-7841 Technical editing and writing, programming, and web development