--- a/configure.ac
+++ b/configure.ac
@@ -857,9 +857,13 @@
       warn_llvm="Missing LLVM file TargetData.h.  JIT compiler is disabled."
     fi
 
+    AC_CHECK_HEADERS([llvm/IR/Verifier.h])
+
     OCTAVE_LLVM_FUNCTION_ADDATTRIBUTE_API
     OCTAVE_LLVM_FUNCTION_ADDFNATTR_API
     OCTAVE_LLVM_CALLINST_ADDATTRIBUTE_API
+    OCTAVE_LLVM_RAW_FD_OSTREAM_API
+    OCTAVE_LLVM_LEGACY_PASSMANAGER_API
     AC_LANG_POP(C++)
     CPPFLAGS="$save_CPPFLAGS"
     CXXFLAGS="$save_CXXFLAGS"

--- a/libinterp/corefcn/jit-typeinfo.cc
+++ b/libinterp/corefcn/jit-typeinfo.cc
@@ -34,7 +34,12 @@
 
 #include "jit-typeinfo.h"
 
+#ifdef HAVE_LLVM_IR_VERIFIER_H
+#include <llvm/IR/Verifier.h>
+#else
 #include <llvm/Analysis/Verifier.h>
+#endif
+
 #include <llvm/ExecutionEngine/ExecutionEngine.h>
 
 #ifdef HAVE_LLVM_IR_FUNCTION_H

--- a/libinterp/corefcn/jit-util.h
+++ b/libinterp/corefcn/jit-util.h
@@ -42,8 +42,15 @@
 {
   class Value;
   class Module;
+#ifdef LEGACY_PASSMANAGER
+  namespace legacy {
+    class FunctionPassManager;
+    class PassManager;
+  }
+#else
   class FunctionPassManager;
   class PassManager;
+#endif
   class ExecutionEngine;
   class Function;
   class BasicBlock;

--- a/libinterp/corefcn/pt-jit.cc
+++ b/libinterp/corefcn/pt-jit.cc
@@ -50,11 +50,22 @@
 
 #include <llvm/Analysis/CallGraph.h>
 #include <llvm/Analysis/Passes.h>
+
+#ifdef HAVE_LLVM_IR_VERIFIER_H
+#include <llvm/IR/Verifier.h>
+#else
 #include <llvm/Analysis/Verifier.h>
+#endif
+
 #include <llvm/Bitcode/ReaderWriter.h>
 #include <llvm/ExecutionEngine/ExecutionEngine.h>
 #include <llvm/ExecutionEngine/JIT.h>
+
+#ifdef LEGACY_PASSMANAGER
+#include <llvm/IR/LegacyPassManager.h>
+#else
 #include <llvm/PassManager.h>
+#endif
 
 #ifdef HAVE_LLVM_IR_FUNCTION_H
 #include <llvm/IR/LLVMContext.h>
@@ -2053,10 +2064,15 @@
   if (! engine)
     return false;
 
+#ifdef LEGACY_PASSMANAGER
+  module_pass_manager = new llvm::legacy::PassManager ();
+  pass_manager = new llvm::legacy::FunctionPassManager (module); 
+#else
   module_pass_manager = new llvm::PassManager ();
+  pass_manager = new llvm::FunctionPassManager (module);
+#endif
   module_pass_manager->add (llvm::createAlwaysInlinerPass ());
 
-  pass_manager = new llvm::FunctionPassManager (module);
 #ifdef HAVE_LLVM_DATALAYOUT
   pass_manager->add (new llvm::DataLayout (*engine->getDataLayout ()));
 #else
@@ -2171,8 +2187,13 @@
   if (Vdebug_jit)
     {
       std::string error;
+#ifdef RAW_FD_OSTREAM_ARG_IS_LLVM_SYS_FS
+      llvm::raw_fd_ostream fout ("test.bc", error,
+                                 llvm::sys::fs::F_Binary);
+#else
       llvm::raw_fd_ostream fout ("test.bc", error,
                                  llvm::raw_fd_ostream::F_Binary);
+#endif
       llvm::WriteBitcodeToFile (module, fout);
     }
 }

--- a/libinterp/corefcn/pt-jit.h
+++ b/libinterp/corefcn/pt-jit.h
@@ -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;
 };
 

--- a/m4/acinclude.m4
+++ b/m4/acinclude.m4
@@ -1744,6 +1744,58 @@
   fi
 ])
 dnl
+dnl Check for raw_fd_ostream API
+dnl
+AC_DEFUN([OCTAVE_LLVM_RAW_FD_OSTREAM_API], [
+  AC_CACHE_CHECK([check LLVM::raw_fd_ostream arg type is llvm::sys:fs],
+    [octave_cv_raw_fd_ostream_arg_is_llvm_sys_fs],
+    [AC_LANG_PUSH(C++)
+      AC_COMPILE_IFELSE(
+        [AC_LANG_PROGRAM([[
+          #include <llvm/Support/raw_os_ostream.h>
+          ]], [[
+          std::string str;
+          llvm::raw_fd_ostream fout ("", str, llvm::sys::fs::F_Binary);
+        ]])],
+        octave_cv_raw_fd_ostream_arg_is_llvm_sys_fs=yes,
+        octave_cv_raw_fd_ostream_arg_is_llvm_sys_fs=no)
+    AC_LANG_POP(C++)
+  ])
+  if test $octave_cv_raw_fd_ostream_arg_is_llvm_sys_fs = yes; then
+    AC_DEFINE(RAW_FD_OSTREAM_ARG_IS_LLVM_SYS_FS, 1,
+      [Define to 1 if LLVM::raw_fd_ostream arg type is llvm::sys:fs.])
+  fi
+])
+dnl
+dnl Check for legacy::PassManager API
+dnl
+AC_DEFUN([OCTAVE_LLVM_LEGACY_PASSMANAGER_API], [
+  AC_CACHE_CHECK([check for LLVM::legacy::PassManager],
+    [octave_cv_legacy_passmanager],
+    [AC_LANG_PUSH(C++)
+      save_LIBS="$LIBS"
+      LIBS="$LLVM_LIBS $LIBS"
+      AC_LINK_IFELSE(
+        [AC_LANG_PROGRAM([[
+          #include <llvm/IR/LegacyPassManager.h>
+          ]], [[
+          llvm::Module *module;
+          llvm::legacy::PassManager *module_pass_manager;
+          llvm::legacy::FunctionPassManager *pass_manager;      
+          module_pass_manager = new llvm::legacy::PassManager ();
+          pass_manager = new llvm::legacy::FunctionPassManager (module);
+        ]])],
+        octave_cv_legacy_passmanager=yes,
+        octave_cv_legacy_passmanager=no)
+      LIBS="$save_LIBS"
+    AC_LANG_POP(C++)
+  ])
+  if test $octave_cv_legacy_passmanager = yes; then
+    AC_DEFINE(LEGACY_PASSMANAGER, 1,
+      [Define to 1 if LLVM::legacy::PassManager exists.])
+  fi
+])
+dnl
 dnl Check for ar.
 dnl
 AC_DEFUN([OCTAVE_PROG_AR], [