setup fix (#231)

Author: clonker

CMakeLists.txt

@@ -61,7 +61,9 @@ add_subdirectory(deeptime/clustering)
 add_subdirectory(deeptime/basis)
 add_subdirectory(deeptime/markov)
 
-add_subdirectory(examples/clustering_custom_metric)
+if (NOT SKBUILD)
+    add_subdirectory(examples/clustering_custom_metric)
+endif()
 
 if(DEEPTIME_BUILD_CPP_TESTS)
     add_subdirectory(tests)

MANIFEST.in

@@ -4,9 +4,12 @@ include LICENSE.txt
 include pyproject.toml
 
 # sources of extensions (incl. cython)
-recursive-include deeptime *.pyx *.h *.hpp *.c *.cpp
+recursive-include deeptime *.pyx *.h *.hpp *.c *.cpp CMakeLists.txt
 
 prune tests
 prune docs
 prune *.egg-info
 prune .github
+prune _skbuild
+prune examples
+prune cmake-build-*