Eliminate NO_VIZ macro as current zlib uses HAVE_HIDDEN in stead.
One more last-moment fix for FreeBSD by Pietro Cerutti
Fix [3613759] ttk::entry and symbolic index names.
Fix [2100430]: ttk::entry widget index must be integer
Add support for X11 GUI-mode on Cygwin64
merge-mark
some code cleanup, remove structure which is no longer used.
Changelog: more bug-fixes which are fixed by the same commit.
Some more fixes for Cygwin32/64 in win32 GUI mode. 
Now that this is fully working, eliminate all usage of WISH_BUILD_LIB_SPEC: TK_BUILD_LIB_SPEC can be used everywhere in stead. 
Remove some old carbon-leftovers from configure/make.
Additional install of libtk86.a for Cygwin
Remove unused @EXTRA_AQUA_OBJS and @EXTRA_AQUA_SRCS
Static Cygwin wish.exe cannot link with win32's static libtk85.a (because it expects a different runtime), so configure shouldn't even try to do this. 
(On a dynamic wish.exe this works, this is exactly how wish can run even without X11). 
Don't use deprecated stricmp/strnicmp any more, but underscored variant for non-GNU compilers.
Updates to redirect bug reports to the new tracker location
fix installation on MacOSX
manually revert changes caused by different autoconf versions
Bug [2501278]: ttk::scale keyboard binding problem
merge-mark
Bug [32afa6e256]: dirent64 check is incorrect in tcl.m4. Thanks to Brian Griffin.
OpenBSD/m88k is now elf. Remove unneeded elf check.
Use X11/Xlib.h for checking where X11 can be found in stead of X11/XIntrinsic.h. Suggested by Pietro Cerutti. (backported from tclconfig)
On Cygwin, don't duplicate TkPutImage definition in tkUnixPort.h, in stead bring it in though tkIntXlibDecls.h
sync with Tcl version