MinTTY Unicode Support and Build Error

Question

I'm trying to use MinTTY with MSYS (downloaded from here), and I've noticed that it doesn't seem to have Unicode support.

i.e.:

1. I can't paste Unicode text into it (it turns out garbage).

2. If I cat a Unicode file to the terminal (whether UTF-8 or UTF-16) I get back garbage.

3. If I use ls and a file name is Unicode, it prints out garbage. Piping the result to a file does not help -- it's still garbage even when viewed in a text editor with Unicode support.

4. I can't figure out how the UTF-8 setting in the seettings works. It doesn't seem to change anything.

5. When I try to download the source and build it, I get build errors that I can't solve:

   Makefile:117: charset.d: No such file or directory
   Makefile:117: child.d: No such file or directory
   Makefile:117: config.d: No such file or directory
   Makefile:117: ctrls.d: No such file or directory
   Makefile:117: minibidi.d: No such file or directory
   Makefile:117: std.d: No such file or directory
   Makefile:117: term.d: No such file or directory
   Makefile:117: termclip.d: No such file or directory
   Makefile:117: termline.d: No such file or directory
   Makefile:117: termmouse.d: No such file or directory
   Makefile:117: termout.d: No such file or directory
   Makefile:117: winclip.d: No such file or directory
   Makefile:117: winctrls.d: No such file or directory
   Makefile:117: windialog.d: No such file or directory
   Makefile:117: wininput.d: No such file or directory
   Makefile:117: winmain.d: No such file or directory
   Makefile:117: winprint.d: No such file or directory
   Makefile:117: wintext.d: No such file or directory
   Makefile:117: wintip.d: No such file or directory
   Makefile:117: xcwidth.d: No such file or directory
   Makefile:117: res.d: No such file or directory
   windres --preprocessor 'gcc -E -xc-header -DRC_INVOKED -MMD -MP 'res.rc res.o
   gcc xcwidth.c -c -MMD -MP  -include std.h -std=gnu99 -Wall -Wextra -Werror
       -Wundef -march=i586 -mtune=pentium-m -DNDEBUG -fomit-frame-pointer -Os
   In file included from <command-line>:0:0:
   ./std.h:4:28: fatal error: cygwin/version.h: No such file or directory
   compilation terminated.
   make: *** [xcwidth.d] Error 1
   

Questions:

1. Is it possible to somehow get Unicode support in MSYS/MinTTY (it seems to be an issue with both)?

2. If not, then where do I get all those files like charset.d, and how do I build MinTTY for MSYS?