=> Bootstrap dependency digest>=20010302: found digest-20160304
===> Building for djvulibre-lib-3.5.27
  CXX      libdjvulibre_la-Arrays.lo
  CXX      libdjvulibre_la-BSByteStream.lo
  CXX      libdjvulibre_la-BSEncodeByteStream.lo
  CXX      libdjvulibre_la-ByteStream.lo
In file included from ByteStream.cpp:74:
In file included from ./GURL.h:68:
./GThreads.h:98:4: error: "Libdjvu requires thread support"
#  error "Libdjvu requires thread support"
   ^
1 error generated.
Makefile:623: recipe for target 'libdjvulibre_la-ByteStream.lo' failed
gmake: *** [libdjvulibre_la-ByteStream.lo] Error 1
*** Error code 2

Stop.
bmake[1]: stopped in /usr/pkgsrc/graphics/djvulibre-lib
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/graphics/djvulibre-lib