Description: Do not link against Octave libraries
 Since Octave 5, the .oct files are no longer linked against Octave libraries.
 And since Octave 6.4.0-2 in Debian, those libraries have been made private (as
 does upstream by default), hence linking against them leads to a FTBFS.
Author: Sébastien Villemot <sebastien@debian.org>
Forwarded: no
Last-Update: 2022-01-17
---
This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
--- a/cmake/FindOctave.cmake
+++ b/cmake/FindOctave.cmake
@@ -5,10 +5,6 @@
 # This module defines: 
 #  OCTAVE_EXECUTABLE           - octave interpreter
 #  OCTAVE_INCLUDE_DIRS         - include path for mex.h, mexproto.h
-#  OCTAVE_LIBRARIES            - required libraries: octinterp, octave, cruft
-#  OCTAVE_OCTINTERP_LIBRARY    - path to the library octinterp
-#  OCTAVE_OCTAVE_LIBRARY       - path to the library octave
-#  OCTAVE_CRUFT_LIBRARY        - path to the library cruft
 #  OCTAVE_VERSION_STRING       - octave version string
 #  OCTAVE_MAJOR_VERSION        - major version
 #  OCTAVE_MINOR_VERSION        - minor version
@@ -88,10 +84,6 @@ if (OCTAVE_CONFIG_EXECUTABLE)
                     OUTPUT_VARIABLE OCTAVE_INCLUDE_PATHS
                     OUTPUT_STRIP_TRAILING_WHITESPACE)
 
-  execute_process (COMMAND ${OCTAVE_CONFIG_EXECUTABLE} -p OCTLIBDIR
-                    OUTPUT_VARIABLE OCTAVE_LIBRARIES_PATHS
-                    OUTPUT_STRIP_TRAILING_WHITESPACE)
-
   execute_process (COMMAND ${OCTAVE_CONFIG_EXECUTABLE} -p OCTFILEDIR
                     OUTPUT_VARIABLE OCTAVE_OCT_FILE_DIR
                     OUTPUT_STRIP_TRAILING_WHITESPACE)
@@ -122,25 +114,6 @@ find_program(OCTAVE_MKOCTFILE
               NAMES mkoctfile
           )
 	
-find_library(OCTAVE_OCTINTERP_LIBRARY
-              NAMES octinterp liboctinterp
-              HINTS ${OCTAVE_LIBRARIES_PATHS}
-          )
-find_library(OCTAVE_OCTAVE_LIBRARY
-              NAMES octave liboctave
-              HINTS ${OCTAVE_LIBRARIES_PATHS}
-          )
-find_library(OCTAVE_CRUFT_LIBRARY
-              NAMES cruft libcruft
-              HINTS ${OCTAVE_LIBRARIES_PATHS}
-          )
-
-set (OCTAVE_LIBRARIES ${OCTAVE_OCTINTERP_LIBRARY})
-list (APPEND OCTAVE_LIBRARIES ${OCTAVE_OCTAVE_LIBRARY})
-if (OCTAVE_CRUFT_LIBRARY)
-  list (APPEND OCTAVE_LIBRARIES ${OCTAVE_CRUFT_LIBRARY})
-endif ()
-
 find_path (OCTAVE_INCLUDE_DIR 
             NAMES octave/oct.h
             PATHS "${OCTAVE_INCLUDE_PATHS}/.."
@@ -175,7 +148,7 @@ macro (octave_add_oct FUNCTIONNAME)
     endif ()
   endforeach ()
   add_library (${FUNCTIONNAME} SHARED ${_SOURCES})
-  target_link_libraries (${FUNCTIONNAME} ${OCTAVE_LIBRARIES} ${_LINK_LIBRARIES})
+  target_link_libraries (${FUNCTIONNAME} ${_LINK_LIBRARIES})
   set_target_properties (${FUNCTIONNAME} PROPERTIES
     PREFIX ""
     SUFFIX  ".${_OCT_EXTENSION}"
@@ -185,16 +158,12 @@ endmacro ()
 
 # handle REQUIRED and QUIET options
 include (FindPackageHandleStandardArgs)
-find_package_handle_standard_args (Octave REQUIRED_VARS OCTAVE_EXECUTABLE OCTAVE_ROOT_DIR OCTAVE_INCLUDE_DIRS OCTAVE_LIBRARIES VERSION_VAR OCTAVE_VERSION_STRING)
+find_package_handle_standard_args (Octave REQUIRED_VARS OCTAVE_EXECUTABLE OCTAVE_ROOT_DIR OCTAVE_INCLUDE_DIRS VERSION_VAR OCTAVE_VERSION_STRING)
 
 
 mark_as_advanced (
   OCTAVE_OCT_FILE_DIR
   OCTAVE_OCT_LIB_DIR
-  OCTAVE_OCTINTERP_LIBRARY
-  OCTAVE_OCTAVE_LIBRARY
-  OCTAVE_CRUFT_LIBRARY
-  OCTAVE_LIBRARIES
   OCTAVE_INCLUDE_DIR
   OCTAVE_INCLUDE_DIRS
   OCTAVE_ROOT_DIR