* src/configure.ac: remove checks for old octave versions

Author: lostbard

src/configure.ac

@@ -68,29 +68,7 @@ AC_CHECK_HEADERS([octave/interpreter.h octave/oct-time.h],
   [#include <octave/oct.h>]
 )
 
-# need to use interpreter->get_load_path in dev version of octave,
-# prior to that methods of load_path were static
-AC_CACHE_CHECK(
-  [interpreter get_load_path],
-  [octave_cv_interpreter_get_load_path],
-  [AC_COMPILE_IFELSE(
-    [AC_LANG_PROGRAM([
-      #include <octave/oct.h>
-      #include <octave/octave.h>
-      #include <octave/interpreter.h>
-      #include <octave/load-path.h>
-      ],
-      [
-        octave::load_path &p = octave::interpreter::the_interpreter ()->get_load_path ();
-      ])],
-    [octave_cv_interpreter_get_load_path=yes],
-    [octave_cv_interpreter_get_load_path=no])
-  ])
-if test "$octave_cv_interpreter_get_load_path" = "yes" ; then
-  AC_DEFINE(HAVE_OCTAVE_LOAD_PATH,[1],[Whether we have the interpreter load path])
-fi
-
-dnl NOTE: most of these are to handle octave < 4.0 so probally not needed
+dnl since we Octave 6+, there are not many types that have changed
 OF_OCTAVE_LIST_ALT_SYMS([
 
 [dnl
@@ -111,81 +89,17 @@ OF_OCTAVE_LIST_ALT_SYMS([
   [[#include <octave/oct-time.h>]]
 ],
 
-[dnl
-  [is_float_type],
-  [isfloat],
-  [[octave_value ().isfloat ();]],
-  [OV_ISFLOAT],
-  [],
-  []
-],
-
-[dnl
-  [is_integer_type],
-  [isinteger],
-  [[octave_value ().isinteger ();]],
-  [OV_ISINTEGER],
-  [],
-  []
-],
-
-[dnl
-  [is_bool_type],
-  [islogical],
-  [[octave_value ().islogical ();]],
-  [OV_ISLOGICAL],
-  [],
-  []
-],
-
 [dnl
   [octave_base_value],
   [octave_base_dld_value],
   [[octave_base_dld_value tmp();]],
   [OCTAVE_BASE_CLASS],
   [],
   []
-],
-
-[dnl
-  [octave_execution_exception],
-  [octave::execution_exception],
-  [[octave::execution_exception err;]],
-  [OCTAVE_EXECUTION_EXCEPTION],
-  [#include <octave/quit.h>],
-  [#include <octave/quit.h>]
 ]
 
 ],[oct-alt-includes.h])
 
-# check if method of getting execution exception message
-AC_MSG_CHECKING([for execution_exception message field])
-octave_execution_field=none
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-   #include <octave/oct.h>
-   #include <octave/quit.h>
-  ]], [
-    OCTAVE_EXECUTION_EXCEPTION err; err.message();
-  ])],
- [octave_execution_field=message],
- [
-   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-     #include <octave/oct.h>
-     #include <octave/quit.h>
-    ]], [
-      OCTAVE_EXECUTION_EXCEPTION err; err.info();
-    ])],
-    [octave_execution_field=info],
-    [])
- ]
-)
-AC_MSG_RESULT([$octave_execution_field])
-AC_DEFINE_UNQUOTED([OCTAVE_EXCEPTION_MESSAGE],$octave_execution_field,[execution_exception message field])
-
-if test $octave_execution_field != none; then
-AC_DEFINE([HAS_OCTAVE_EXCEPTION_MESSAGE],[1],[has some kid of execution_exception message field])
-fi
-
 CC=$save_CXX
 CXXFLAGS=$save_CXXFLAGS
 LIBS="$save_LIBS"