Log Message:
Update fltk to 1.1.10.
Based on patch from Tim Larson by PR#43061.

CHANGES IN FLTK 1.1.10

	- Widgets now remove stale entries from the default callback
	  queue when they are deleted (STR #2302)
	- Fixed selection bug in Fl_Int_Input (STR #2292)
	- Fixed character set conversion functions (STR #2268)
	- Fixed image lib configure and fltk-config issues by backporting
	  the image lib and zlib configure code from FLTK 1.3 (STR #2203)
	- Updated the bundled libpng to v1.2.40 (released Sep. 10, 2009)
	- Fixed Fl_Choice contrast with light-on-dark settings (STR #2219)
	- Added Xft2 font lookup table (STR #2215)
	- Fixed X server "lock", if a modal dialog window is opened
	  while a menu is active (STR #1986)
	- Updated mirror sites in documentation (STR #2220)
	- Setting a default font for Xft (STR #2216)
	- Temporarily limited builds to 32-bit on OX S to stay
	  compatible to Snow Leopard
	- Fixed Windows compile bug with "#define USE_COLORMAP 0"
	  (STR #2241)
	- Fixed glibc 2.10 compiler problems (Fedora 11 and others)
	  with scandir() and strchr() (STR #2222)
	- Fixed OpenGL shared context handling (STR #2135)
	- Fixed gray-scale images with alpha channel (STR #2105)
	- Fixed unexpected shortcut behavior for Win32 (STR #2199)
	- Added cast to Fl_Color in all Fluid code (STR #2206)
	- Fixed wrong identifier for special keys combined with
	  modifier (STR #2196)
	- Fixed documentation for Fl_Progress (STR #2209)
	- Fix for multiple popups, when dragging and calling fl_alert()
	  and friends from the callback (STR #2159)
	- Avoiding crashes for recursive common dialogs (this does not
	  fix the issue at hand yet) (STR 2150)
	- Fluid printing used wrong colors under Windows (STR #2195)
	- Fixed bad system menu hadling in OS X (STR #2153)
	- Fixed File Input mouse pointer dragging (STR #2181)
	- Added Fl_Scroll::bbox() documentation (STR #1893)
	- Fixed static linking of image libraries (STR #1962)
	- Fixed callback would not be called when shortcut was used with
          radio and toggle buttons in default FL_RELEASE mode.
	- Fixed a problem with TrackMouseEvent() (Windows only) that would
	  generate wrong FL_LEAVE events with subwindows. TrackMouseEvent
	  is now enabled by default (it was disabled for GNU compilers).
	  It can be disabled by defining NO_TRACK_MOUSE.
	  Improved test/subwindow.cxx (STR #2079)
	- Fixed RGB colors for round box (STR #2097)
	- Fixed documentation (added missing COMCTRL32.LIB dependency)
	- Fl_Group::clip_children() is now public (STR #2017)
	- Fixed first modifier key event (STR #1952)
	- Fixed wrong default value of Fl_Spinner in Fluid (STR #1991)
	- Fixed Fluid textcolor output (STR #1992)
	- Added clarification to Fl_GL_Window mode function (STR #1945)
	- Fl_Group and Fl_Scroll now resize themselves before
	  resizing their children (STR #2032)
	- Fixed adding an idle handler during a draw() call (STR #1950)
	- Improved stability of fl_read_image (STR #2021)
	- Fixed menu position close to screen border (STR #2057)