CMake: Libraries: Add TIFF.

cmake/modules/MangleTIFF.cmake

@@ -0,0 +1,29 @@
+# Filename: MangleTIFF.cmake
+# Author: kestred (29 Nov, 2013)
+#
+# MangleTIFF replaces the output variables of the builtin FindTIFF
+# with vars matching Panda3D's existing config-var names.
+#
+
+if(TIFF_FOUND)
+	set(HAVE_TIFF TRUE)
+	set(TIFF_LIBS tiff z)
+
+	get_filename_component(TIFF_LIBRARY_DIR "${TIFF_LIBRARY}" PATH)
+
+	set(TIFF_IPATH "${TIFF_INCLUDE_DIR}" CACHE PATH "The path to libTIFF's include directory.") # Include path
+	set(TIFF_LPATH "${TIFF_LIBRARY_DIR}" CACHE PATH "The path to libTIFF's library directory.") # Library path
+	mark_as_advanced(TIFF_IPATH)
+	mark_as_advanced(TIFF_LPATH)
+
+	set(TIFF_VERSION ${TIFF_VERSION_STRING})
+
+	unset(TIFF_FOUND)
+	unset(TIFF_LIBRARY CACHE)
+	unset(TIFF_LIBRARIES)
+	unset(TIFF_INCLUDE_DIR CACHE)
+	unset(TIFF_LIBRARY_DIR)
+else()
+	unset(TIFF_INCLUDE_DIR CACHE)
+	unset(TIFF_LIBRARY CACHE)
+endif()

dtool/Configure.cmake

@@ -64,8 +64,10 @@ else()
 endif()
 
 
-
-
+# Check for and configure TIFF library
+# Mangle the builtin FindTIFF output to match Panda3D's config-style
+find_package(TIFF QUIET COMPONENTS tiff z)
+include(MangleTIFF)
 if(HAVE_TIFF)
     message(STATUS "+ libtiff")
 else()