Issue #5491 has been updated by The Written Word Inc. For compile.c, we have: #include "ruby/ruby.h" #include "vm_core.h" #include "thread_pthread.h" #include <pthread.h> #include <pthread_exception.h> #include <c_excpt.h> So, if you #undef leave and #undef except after #include <pthread.h> in thread_pthread.h, that's a solution as well. ---------------------------------------- Bug #5491: build failure on Tru64 UNIX 5.1 http://redmine.ruby-lang.org/issues/5491 Author: The Written Word Inc Status: Open Priority: Normal Assignee: Category: build Target version: 1.9.2 ruby -v: UNKNOWN Building 1.9.2 with latest svn revision at 33531 produces a build error because <c_except.h> defines leave and except: /* definitions of keywords and intrinsic function names */ #ifndef __cplusplus #define try __builtin_try #endif #define except __builtin_except #define leave __builtin_leave #define finally __builtin_finally cc -ieee -g -I. -I.ext/include/alphaev67-osf5.1 -I./include -I. -DRUBY_EXPORT -o compile.o -c compile.c cc: Error: compile.c, line 504: In this statement, "YARVINSN___builtin_leave" is not declared. (undeclared) ADD_INSN(ret, iseq->compile_data->last_line, leave); --------^ cc: Error: compile.c, line 3584: In this statement, "YARVINSN___builtin_leave" is not declared. (undeclared) ADD_INSN(ret, nd_line(node), leave); ------------^ cc: Error: compile.c, line 4273: In this statement, "YARVINSN___builtin_leave" is not declared. (undeclared) ADD_INSN(ret, nd_line(node), leave); --------------------^ gmake: *** [compile.o] Error 1 -- http://redmine.ruby-lang.org