libxputty/xputty/header/xwidget-platform.h:84:1: error: unknown type name 'Display' about mamba HOT 7 OPEN

===>  Building for mamba-2.6
for         
with        cc
using       gold
and         xxd -i
gmake[1]: warning: -j1 forced in submake: resetting jobserver mode.
cat: /proc/cpuinfo: No such file or directory
cat: /proc/cpuinfo: No such file or directory
cat: /proc/cpuinfo: No such file or directory
cat: /proc/cpuinfo: No such file or directory
 Building object file build/MidiKeyBoard.o 
c++: warning: optimization flag '-fstrength-reduce' is not supported [-Wignored-optimization-argument]
c++: warning: optimization flag '-fschedule-insns' is not supported [-Wignored-optimization-argument]
In file included from MidiKeyBoard.cpp:22:
./MidiKeyBoard.h:55:10: fatal error: 'xwidgets.h' file not found
   55 | #include "xwidgets.h"
      |          ^~~~~~~~~~~~
1 error generated.
gmake[1]: *** [Makefile:156: build/MidiKeyBoard.o] Error 1

In file included from MidiKeyBoard.cpp:22:
In file included from ./MidiKeyBoard.h:55:
In file included from /usr/ports/audio/mamba/work/Mamba-3a814f5/libxputty/xputty/header/xwidgets.h:40:
In file included from /usr/ports/audio/mamba/work/Mamba-3a814f5/libxputty/xputty/header/widgets/xbutton.h:26:
In file included from /usr/ports/audio/mamba/work/Mamba-3a814f5/libxputty/xputty/header/xputty.h:210:
/usr/ports/audio/mamba/work/Mamba-3a814f5/libxputty/xputty/header/xpngloader.h:109:10: fatal error: 'xresources.h' file not found
  109 | #include "xresources.h"
      |          ^~~~~~~~~~~~~~
1 error generated.

CXXFLAGS+=      -I${WRKSRC}/libxputty/xputty/header \
                -I${WRKSRC}/libxputty/xputty/header/widgets

===>  Building for mamba-2.5
Makefile:2: libxputty/Build/Makefile.base: No such file or directory
gmake: *** No rule to make target 'libxputty/Build/Makefile.base'.  Stop.