fix LLVM 3.4 build (bug #41061) * configure.ac: Call new functions OCTAVE_LLVM_RAW_FD_OSTREAM_API and OCTAVE_LLVM_LEGACY_PASSMANAGER_API, check for Verifier.h header file * m4/acinclude.m4 (OCTAVE_LLVM_RAW_FD_OSTREAM_API): New function to detect correct raw_fd_ostream API * m4/acinclude.m4 (OCTAVE_LLVM_LEGACY_PASSMANAGER_API): New function to detect legacy passmanager API * libinterp/corefcn/jit-util.h: Use legacy passmanager namespace if necessary * libinterp/corefcn/pt-jit.h (class tree_jit): Use legacy passmanager class if necessary * libinterp/corefcn/pt-jit.cc: Include appropriate header files * libinterp/corefcn/pt-jit.cc (tree_jit::initialize): Use legacy passmanager if necessary * libinterp/corefcn/pt-jit.cc (tree_jit::optimize): Use correct API * libinterp/corefcn/jit-typeinfo.cc: Include appropriate header file

--- a/libinterp/corefcn/pt-jit.h	Sun Mar 16 23:33:49 2014 +0100
+++ b/libinterp/corefcn/pt-jit.h	Sun May 11 02:28:33 2014 +0200
@@ -386,8 +386,13 @@
   size_t trip_count (const octave_value& bounds) const;
 
   llvm::Module *module;
+#ifdef LEGACY_PASSMANAGER
+  llvm::legacy::PassManager *module_pass_manager;
+  llvm::legacy::FunctionPassManager *pass_manager;
+#else
   llvm::PassManager *module_pass_manager;
   llvm::FunctionPassManager *pass_manager;
+#endif
   llvm::ExecutionEngine *engine;
 };