From: Yury G. Kudryashov <urkud.urkud@gmail.com>
Subject: [PATCH] FindJPEG: provide JPEG_INCLUDE_DIRS, as the readme.txt says (#12626)

Mostly copy df0f302485c6f93a473e1958830b69b9c165b01a by Alex

---
 Modules/FindJPEG.cmake |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/Modules/FindJPEG.cmake b/Modules/FindJPEG.cmake
index 349e7e1..5ffdd22 100644
--- a/Modules/FindJPEG.cmake
+++ b/Modules/FindJPEG.cmake
@@ -1,11 +1,12 @@
 # - Find JPEG
 # Find the native JPEG includes and library
 # This module defines
-#  JPEG_INCLUDE_DIR, where to find jpeglib.h, etc.
+#  JPEG_INCLUDE_DIRS, where to find jpeglib.h, etc.
 #  JPEG_LIBRARIES, the libraries needed to use JPEG.
 #  JPEG_FOUND, If false, do not try to use JPEG.
 # also defined, but not for general use are
 #  JPEG_LIBRARY, where to find the JPEG library.
+# For backward compatiblity the variable JPEG_INCLUDE_DIR is also set. It has the same value as JPEG_INCLUDE_DIRS.
 
 #=============================================================================
 # Copyright 2001-2009 Kitware, Inc.
@@ -32,6 +33,7 @@ FIND_PACKAGE_HANDLE_STANDARD_ARGS(JPEG DEFAULT_MSG JPEG_LIBRARY JPEG_INCLUDE_DIR
 
 IF(JPEG_FOUND)
   SET(JPEG_LIBRARIES ${JPEG_LIBRARY})
+  SET(JPEG_INCLUDE_DIRS ${JPEG_INCLUDE_DIR})
 ENDIF(JPEG_FOUND)
 
 # Deprecated declarations.
-- 
tg: (038ba37..) t/find-jpeg-include-dirs (depends on: master)