Can't find headers when trying to use existing binaries

[rom1504]

I'm trying to follow https://github.com/kyamagu/faiss-wheels#linux so I can build my own binaries without AVX2

rom1504@rom1504-W35-37ET:~/faiss$ pip install --no-binary :all: faiss-cpu
Defaulting to user installation because normal site-packages is not writeable
Collecting faiss-cpu
  Using cached faiss-cpu-1.6.3.tar.gz (17 kB)
Requirement already satisfied: numpy in /usr/lib/python3/dist-packages (from faiss-cpu) (1.16.2)
Skipping wheel build for faiss-cpu, due to binaries being disabled for it.
Installing collected packages: faiss-cpu
    Running setup.py install for faiss-cpu ... error
    ERROR: Command errored out with exit status 1:
     command: /usr/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-ti_pc5up/faiss-cpu/setup.py'"'"'; __file__='"'"'/tmp/pip-install-ti_pc5up/faiss-cpu/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-sq3a3ca8/install-record.txt --single-version-externally-managed --user --prefix= --compile --install-headers /home/rom1504/.local/include/python3.7m/faiss-cpu                                                                                                                                  
         cwd: /tmp/pip-install-ti_pc5up/faiss-cpu/                                                                                                                          
    Complete output (56 lines):                                                                                                                                             
    running install                                                                                                                                                         
    running build                                                                                                                                                           
    running build_ext                                                                                                                                                       
    building 'faiss._swigfaiss' extension                                                                                                                                   
    swigging python/swigfaiss.i to python/swigfaiss_wrap.cpp                                                                                                                
    swig -python -c++ -Doverride= -I/usr/local/include/faiss -DSWIGWORDSIZE64 -o python/swigfaiss_wrap.cpp python/swigfaiss.i                                               
    python/swigfaiss.i:230: Error: Unable to find 'faiss/utils/Heap.h'                                                                                                      
    python/swigfaiss.i:231: Error: Unable to find 'faiss/utils/hamming.h'                                                                                                   
    python/swigfaiss.i:312: Error: Unable to find 'faiss/utils/utils.h'    

These headers are actually present :

rom1504@rom1504-W35-37ET:~/faiss$ ls /usr/local/include/faiss
AutoTune.h     Index2Layer.h           IndexBinaryHNSW.h  IndexHNSW.h     IndexIVFPQR.h           IndexPreTransform.h     IVFlib.h               utils
clone_index.h  IndexBinaryFlat.h       IndexBinaryIVF.h   index_io.h      IndexIVFSpectralHash.h  IndexReplicas.h         MatrixStats.h          VectorTransform.h
Clustering.h   IndexBinaryFromFloat.h  index_factory.h    IndexIVFFlat.h  IndexLattice.h          IndexScalarQuantizer.h  MetaIndexes.h
DirectMap.h    IndexBinary.h           IndexFlat.h        IndexIVF.h      IndexLSH.h              IndexShards.h           MetricType.h
impl           IndexBinaryHash.h       Index.h            IndexIVFPQ.h    IndexPQ.h               InvertedLists.h         OnDiskInvertedLists.h
rom1504@rom1504-W35-37ET:~/faiss$ ls /usr/local/include/faiss/utils/
distances.h  extra_distances.h  hamming.h  hamming-inl.h  Heap.h  random.h  utils.h  WorkerThread.h

What could be wrong ?

[kyamagu]

Can you try export FAISS_INCLUDE=/usr/local/include?

[rom1504]

I tried but with no success (same error)
I followed the method you pointed at #15 (comment) and it worked
Again thanks for the help !