freebsd: use a older llfuse release that builds

llfuse >0.41.1 <=1.0.0 does not build on freebsd.
the issue is already fixed, but no new release yet.

Vagrantfile

@@ -202,8 +202,8 @@ def install_borg(boxname)
     rm -f borg/{chunker,crypto,compress,hashindex,platform_linux}.c
     rm -rf borg/__pycache__ borg/support/__pycache__ borg/testsuite/__pycache__
     pip install -r requirements.d/development.txt
-    pip install -r requirements.d/fuse.txt
-    pip install -e .
+    # by using [fuse], setup.py can handle different fuse requirements:
+    pip install -e .[fuse]
   EOF
 end
 

setup.py

@@ -24,12 +24,18 @@ install_requires = ['msgpack-python>=0.4.6', ]
 extras_require = {
     # llfuse 0.40 (tested, proven, ok), needs FUSE version >= 2.8.0
     # llfuse 0.41 (tested shortly, looks ok), needs FUSE version >= 2.8.0
+    # llfuse 0.41.1 (tested shortly, looks ok), needs FUSE version >= 2.8.0
     # llfuse 0.42 (tested shortly, looks ok), needs FUSE version >= 2.8.0
     # llfuse 1.0 (tested shortly, looks ok), needs FUSE version >= 2.8.0
     # llfuse 2.0 will break API
     'fuse': ['llfuse<2.0', ],
 }
 
+if sys.platform.startswith('freebsd'):
+    # while llfuse 1.0 is the latest llfuse release right now,
+    # llfuse 0.41.1 is the latest release that actually builds on freebsd:
+    extras_require['fuse'] = ['llfuse==0.41.1', ]
+
 from setuptools import setup, Extension
 from setuptools.command.sdist import sdist