wip: fork

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diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
deleted file mode 100644
index a8dfa970f..000000000
--- a/examples/CMakeLists.txt
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@@ -1,219 +0,0 @@
-#
-# CMakeLists.txt used to build example apps by the CMake build system
-#
-# Copyright 2020-2024 by Bill Spitzak and others.
-#
-# This library is free software. Distribution and use rights are outlined in
-# the file "COPYING" which should have been included with this file.  If this
-# file is missing or damaged, see the license at:
-#
-#     https://www.fltk.org/COPYING.php
-#
-# Please see the following page on how to report bugs and issues:
-#
-#     https://www.fltk.org/bugs.php
-#
-################################################################################
-
-include(../CMake/fl_create_example.cmake)
-include(../CMake/FLTK-Functions.cmake)
-
-set(EXECUTABLE_OUTPUT_PATH ${CMAKE_CURRENT_BINARY_DIR}/../bin/examples)
-file(MAKE_DIRECTORY ${EXECUTABLE_OUTPUT_PATH})
-
-################################################################################
-
-# create separate lists of all source (.cxx) files
-# depending on the required FLTK and system libraries
-
-############################################################
-# simple examples w/o extra libs
-############################################################
-
-set(SIMPLE_SOURCES
-  browser-simple
-  callbacks
-  chart-simple
-  draggable-group
-  grid-simple
-  howto-add_fd-and-popen
-  howto-browser-with-icons
-  howto-drag-and-drop
-  howto-draw-an-x
-  howto-flex-simple
-  howto-menu-with-images
-  howto-parse-args
-  howto-remap-numpad-keyboard-keys
-  howto-text-over-image-button
-  menubar-add
-  nativefilechooser-simple
-  nativefilechooser-simple-app
-  progress-simple
-  shapedwindow
-  simple-terminal
-  table-as-container
-  table-simple
-  table-sort
-  table-spreadsheet
-  table-spreadsheet-with-keyboard-nav
-  table-with-keynav
-  table-with-right-column-stretch-fit
-  table-with-right-click-menu
-  tabs-simple
-  textdisplay-with-colors
-  texteditor-simple
-  texteditor-with-dynamic-colors
-  tree-as-container
-  tree-custom-draw-items
-  tree-custom-sort
-  tree-of-tables
-  tree-simple
-  wizard-simple
-)
-
-############################################################
-# simple FLUID examples w/o extra libs
-############################################################
-
-set(FLUID_SOURCES
-  fluid-callback
-)
-
-############################################################
-# examples requiring fltk::images
-############################################################
-
-set(IMAGE_SOURCES
-  animgifimage
-  animgifimage-play
-  animgifimage-resize
-  animgifimage-simple
-  howto-simple-svg
-)
-
-############################################################
-# examples requiring cairo
-############################################################
-
-set(CAIRO_SOURCES
-  cairo-draw-x
-)
-
-############################################################
-# examples requiring OpenGL3 + GLEW
-############################################################
-
-set(OPENGL_SOURCES
-  OpenGL3-glut-test
-  OpenGL3test
-)
-
-############################################################
-# create simple example programs
-############################################################
-
-foreach(src ${SIMPLE_SOURCES})
-  fl_create_example(${src} ${src}.cxx fltk::fltk)
-endforeach(src)
-
-############################################################
-# create FLUID example programs
-############################################################
-
-foreach(src ${FLUID_SOURCES})
-  fl_create_example(${src} ${src}.fl fltk::fltk)
-endforeach(src)
-
-############################################################
-# create example programs with fltk_images library
-############################################################
-
-foreach(src ${IMAGE_SOURCES})
-  fl_create_example(${src} ${src}.cxx "fltk::images")
-endforeach(src)
-
-############################################################
-# create example programs requiring cairo
-############################################################
-
-foreach(src ${CAIRO_SOURCES})
-  fl_create_example(${src} ${src}.cxx fltk::fltk)
-endforeach(src)
-
-############################################################
-# create example programs with OpenGL3 + GLEW
-############################################################
-#
-# Note 1: macOS (Quartz) does not need GLEW, it's included in OpenGL
-# Note 2: find_package(GLEW) finds either shared or static libs or both.
-# Note 3: on Windows we set the variable GLEW_USE_STATIC_LIBS=TRUE because
-#         we *want* to find static libs but we *can* also use shared libs.
-# Note 4: FindGLEW.cmake changed the library suffixes for MinGW in CMake 3.28.0,
-#         obviously "assuming" that ".lib" is Visual Studio only. There have been
-#         discussions about finding the "wrong" libraries since CMake 3.25 or so.
-#         Therefore the static lib "glew32s.lib" is not found if CMake 3.28 or
-#         higher is used (current version, as of this writing: 3.29.3). However,
-#         this assumption is probably not true for a pure C library (glew32s).
-#         This library *is* found and works well with CMake 3.15.0 - 3.27.9.
-#         Users may need to copy or rename "glew32s.lib" to "glew32s.a"
-#         if CMake 3.28 or higher is used.
-#         Albrecht-S, May 13, 2024
-
-if(OPENGL_FOUND)
-  if(WIN32)
-    set(GLEW_USE_STATIC_LIBS TRUE)
-  endif()
-  set(_glew_lib GLEW::glew)
-  set(_glew_static FALSE)
-  if(APPLE AND NOT FLTK_BACKEND_X11) # macOS Quartz
-    set(_glew_lib)
-    set(GLEW_FOUND TRUE)
-  else()
-    # set(GLEW_VERBOSE TRUE) # make `find_package(GLEW)` verbose
-    set(_CMAKE_PREFIX_PATH_SAVED ${CMAKE_PREFIX_PATH})
-    set(CMAKE_PREFIX_PATH ${FLTK_GLEW_DIR} ${CMAKE_PREFIX_PATH})
-    find_package(GLEW MODULE)
-    set(CMAKE_PREFIX_PATH ${_CMAKE_PREFIX_PATH_SAVED})
-    unset(_CMAKE_PREFIX_PATH_SAVED)
-    # Did we find the static lib? If yes, use it
-    if(TARGET GLEW::glew_s)
-      set(_glew_lib GLEW::glew_s)
-      set(_glew_static TRUE)
-    endif()
-  endif()
-
-  if(0) # Debug
-    fl_debug_var(OPENGL_FOUND)
-    fl_debug_var(GLEW_FOUND)
-    fl_debug_var(GLEW_DIR)
-    fl_debug_var(_glew_lib)
-    fl_debug_target(GLEW::glew)
-    fl_debug_target(GLEW::glew_s)
-    fl_debug_target(GLEW::GLEW)
-  endif() # /Debug
-
-endif(OPENGL_FOUND)
-
-if(OPENGL_FOUND AND (TARGET "${_glew_lib}" OR APPLE))
-
-  # GLEW was found, create the OpenGL3 targets:
-
-  foreach(tgt ${OPENGL_SOURCES})
-    fl_create_example(${tgt} ${tgt}.cxx "fltk::gl;${_glew_lib}")
-    set_property(TARGET ${tgt} PROPERTY CXX_STANDARD 11)
-    set_property(TARGET ${tgt} PROPERTY CXX_STANDARD_REQUIRED TRUE)
-    # define preprocessor macro GLEW_STATIC only if we link to the static lib
-    if(_glew_static)
-      target_compile_definitions(${tgt} PRIVATE "GLEW_STATIC")
-    endif()
-  endforeach(tgt)
-
-else()
-
-  message(STATUS
-    "OpenGL or GLEW not present: OpenGL3 example programs will not be built.")
-  fl_debug_var(OPENGL_FOUND)
-  fl_debug_var(GLEW_FOUND)
-  message("")
-
-endif() # (OPENGL_FOUND AND TARGET "${_glew_lib}")