CMakeLists: also accept IOS_PLATFORM=SIMULATOR64

This might be needed to build FreeType for the iOS simulator. See
https://savannah.nongnu.org/bugs/index.php?54048. Patch contributed
by Steve Robinson.

* CMakeLists.txt: Accept IOS_PLATFORM=SIMULATOR64

CMakeLists.txt

@@ -35,6 +35,10 @@
 #
 #   cmake -E chdir build cmake -G Xcode -D IOS_PLATFORM=SIMULATOR ..
 #
+# or
+#
+#   cmake -E chdir build cmake -G Xcode -D IOS_PLATFORM=SIMULATOR64 ..
+#
 # Finally, build the project with:
 #
 #   cmake --build build
@@ -96,9 +100,10 @@ include(CheckIncludeFile)
 if (APPLE)
   if (DEFINED IOS_PLATFORM)
     if (NOT "${IOS_PLATFORM}" STREQUAL "OS"
-        AND NOT "${IOS_PLATFORM}" STREQUAL "SIMULATOR")
+        AND NOT "${IOS_PLATFORM}" STREQUAL "SIMULATOR"
+        AND NOT "${IOS_PLATFORM}" STREQUAL "SIMULATOR64")
       message(FATAL_ERROR
-        "IOS_PLATFORM must be set to either OS or SIMULATOR")
+        "IOS_PLATFORM must be set to either OS, SIMULATOR, or SIMULATOR64")
     endif ()
     if (NOT "${CMAKE_GENERATOR}" STREQUAL "Xcode")
       message(AUTHOR_WARNING

ChangeLog

@@ -1,3 +1,13 @@
+2018-06-10  Nikolaus Waxweiler  <madigens@gmail.com>
+
+	CMakeLists: also accept IOS_PLATFORM=SIMULATOR64
+
+	This might be needed to build FreeType for the iOS simulator. See
+	https://savannah.nongnu.org/bugs/index.php?54048. Patch contributed
+	by Steve Robinson.
+
+	* CMakeLists.txt: Accept IOS_PLATFORM=SIMULATOR64
+
 2018-06-10  Werner Lemberg  <wl@gnu.org>
 
 	Implement `FT_Palette_Get'.