Issue #5085 has been updated by Motohiro KOSAKI. Subject changed from Please backport r32647 (workaround for llvm-gcc) to Please backport r32649 (workaround for llvm-gcc) r32649 is better patch. then, I changed the subject. ---------------------------------------- Backport #5085: Please backport r32649 (workaround for llvm-gcc) http://redmine.ruby-lang.org/issues/5085 Author: Motohiro KOSAKI Status: Assigned Priority: Normal Assignee: Yuki Sonoda Category: build Target version: Currently, Xcode4.1 (i.e. Xcode for Lion) makes bad optimization, and then ruby will crash. Therefore, r32647 changed optflags default to -O0 if the compiler is llvm-gcc. Please consider backport it. -- http://redmine.ruby-lang.org