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+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+#[=======================================================================[.rst:
+FindJPEG
+--------
+
+Find the Joint Photographic Experts Group (JPEG) library (``libjpeg``)
+
+Imported targets
+^^^^^^^^^^^^^^^^
+
+.. versionadded:: 3.12
+
+This module defines the following :prop_tgt:`IMPORTED` targets:
+
+``JPEG::JPEG``
+  The JPEG library, if found.
+
+Result variables
+^^^^^^^^^^^^^^^^
+
+This module will set the following variables in your project:
+
+``JPEG_FOUND``
+  If false, do not try to use JPEG.
+``JPEG_INCLUDE_DIRS``
+  where to find jpeglib.h, etc.
+``JPEG_LIBRARIES``
+  the libraries needed to use JPEG.
+``JPEG_VERSION``
+  .. versionadded:: 3.12
+    the version of the JPEG library found
+
+Cache variables
+^^^^^^^^^^^^^^^
+
+The following cache variables may also be set:
+
+``JPEG_INCLUDE_DIRS``
+  where to find jpeglib.h, etc.
+``JPEG_LIBRARY_RELEASE``
+  where to find the JPEG library (optimized).
+``JPEG_LIBRARY_DEBUG``
+  where to find the JPEG library (debug).
+
+.. versionadded:: 3.12
+  Debug and Release variand are found separately.
+
+Obsolete variables
+^^^^^^^^^^^^^^^^^^
+
+``JPEG_INCLUDE_DIR``
+  where to find jpeglib.h, etc. (same as JPEG_INCLUDE_DIRS)
+``JPEG_LIBRARY``
+  where to find the JPEG library.
+#]=======================================================================]
+
+find_path(JPEG_INCLUDE_DIR jpeglib.h)
+
+set(jpeg_names ${JPEG_NAMES} jpeg jpeg-static libjpeg libjpeg-static turbojpeg turbojpeg-static)
+foreach(name ${jpeg_names})
+  list(APPEND jpeg_names_debug "${name}d")
+endforeach()
+
+if(NOT JPEG_LIBRARY)
+  find_library(JPEG_LIBRARY_RELEASE NAMES ${jpeg_names} NAMES_PER_DIR)
+  find_library(JPEG_LIBRARY_DEBUG NAMES ${jpeg_names_debug} NAMES_PER_DIR)
+  include(SelectLibraryConfigurations)
+  select_library_configurations(JPEG)
+  mark_as_advanced(JPEG_LIBRARY_RELEASE JPEG_LIBRARY_DEBUG)
+endif()
+unset(jpeg_names)
+unset(jpeg_names_debug)
+
+if(JPEG_INCLUDE_DIR)
+  file(GLOB _JPEG_CONFIG_HEADERS_FEDORA "${JPEG_INCLUDE_DIR}/jconfig*.h")
+  file(GLOB _JPEG_CONFIG_HEADERS_DEBIAN "${JPEG_INCLUDE_DIR}/*/jconfig.h")
+  set(_JPEG_CONFIG_HEADERS
+    "${JPEG_INCLUDE_DIR}/jpeglib.h"
+    ${_JPEG_CONFIG_HEADERS_FEDORA}
+    ${_JPEG_CONFIG_HEADERS_DEBIAN})
+  foreach (_JPEG_CONFIG_HEADER IN LISTS _JPEG_CONFIG_HEADERS)
+    if (NOT EXISTS "${_JPEG_CONFIG_HEADER}")
+      continue ()
+    endif ()
+    file(STRINGS "${_JPEG_CONFIG_HEADER}"
+      jpeg_lib_version REGEX "^#define[\t ]+JPEG_LIB_VERSION[\t ]+.*")
+
+    if (NOT jpeg_lib_version)
+      continue ()
+    endif ()
+
+    string(REGEX REPLACE "^#define[\t ]+JPEG_LIB_VERSION[\t ]+([0-9]+).*"
+      "\\1" JPEG_VERSION "${jpeg_lib_version}")
+    break ()
+  endforeach ()
+  unset(jpeg_lib_version)
+  unset(_JPEG_CONFIG_HEADER)
+  unset(_JPEG_CONFIG_HEADERS)
+  unset(_JPEG_CONFIG_HEADERS_FEDORA)
+  unset(_JPEG_CONFIG_HEADERS_DEBIAN)
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(JPEG
+  REQUIRED_VARS JPEG_LIBRARY JPEG_INCLUDE_DIR
+  VERSION_VAR JPEG_VERSION)
+
+if(JPEG_FOUND)
+  set(JPEG_LIBRARIES ${JPEG_LIBRARY})
+  set(JPEG_INCLUDE_DIRS "${JPEG_INCLUDE_DIR}")
+
+  if(NOT TARGET JPEG::JPEG)
+    add_library(JPEG::JPEG UNKNOWN IMPORTED)
+    if(JPEG_INCLUDE_DIRS)
+      set_target_properties(JPEG::JPEG PROPERTIES
+        INTERFACE_INCLUDE_DIRECTORIES "${JPEG_INCLUDE_DIRS}")
+    endif()
+    if(EXISTS "${JPEG_LIBRARY}")
+      set_target_properties(JPEG::JPEG PROPERTIES
+        IMPORTED_LINK_INTERFACE_LANGUAGES "C"
+        IMPORTED_LOCATION "${JPEG_LIBRARY}")
+    endif()
+    if(EXISTS "${JPEG_LIBRARY_RELEASE}")
+      set_property(TARGET JPEG::JPEG APPEND PROPERTY
+        IMPORTED_CONFIGURATIONS RELEASE)
+      set_target_properties(JPEG::JPEG PROPERTIES
+        IMPORTED_LINK_INTERFACE_LANGUAGES_RELEASE "C"
+        IMPORTED_LOCATION_RELEASE "${JPEG_LIBRARY_RELEASE}")
+    endif()
+    if(EXISTS "${JPEG_LIBRARY_DEBUG}")
+      set_property(TARGET JPEG::JPEG APPEND PROPERTY
+        IMPORTED_CONFIGURATIONS DEBUG)
+      set_target_properties(JPEG::JPEG PROPERTIES
+        IMPORTED_LINK_INTERFACE_LANGUAGES_DEBUG "C"
+        IMPORTED_LOCATION_DEBUG "${JPEG_LIBRARY_DEBUG}")
+    endif()
+  endif()
+endif()
+
+mark_as_advanced(JPEG_LIBRARY JPEG_INCLUDE_DIR)