build errors

Linux build hiccups:

around line 64 man in "build.make" :

fwknop-gui.8: ../fwknop-gui.8.asciidoc


@$(CMAKE_COMMAND) -E cmake_echo_color --switch=$(COLOR) --blue --bold --progress-dir=/mnt/p2/BM

/1packKnok/GUI/fwknop-gui-master/bui/CMakeFiles --progress-num=$(CMAKE_PROGRESS_1) "Building manpage /mnt/p2

/BM/1packKnok/GUI/fwknop-gui-master/bui/fwknop-gui.8"

  # A2X_EXECUTABLE-NOTFOUND   ###  asciidoc  problem in Debian

  a2x -D /mnt/p2/BM/1packKnok/GUI/fwknop-gui-master/bui -d manpage -f manpage /mnt/p2/BM/1packKnok

/GUI/fwknop-gui-master/fwknop-gui.8.asciidoc

place ...../fwknop-gui-master/bui/fwknop-gui.8 to ..

before sudo -H make install

then all works lke a charm.