faiss FTBFS on noble

[Pushkar Kulkarni]

The build seems to fail due to a recent upgrade of dependency swig [1] to 4.2.0-1 in noble-proposed. The last successful upload was built using swig 4.1.0-0.3[2]. Someone also reported the same failure upstream [3]. The build also fails with swig 4.2.0-0ubuntu1 in noble-release.

[1] https://launchpad.net/ubuntu/+source/swig/4.2.0-1
[2] https://launchpad.net/ubuntu/+source/faiss/1.7.4-3build1/+build/27660583
[3] https://github.com/facebookresearch/faiss/issues/3235

[Pushkar Kulkarni (pushkarnk)]

Oh, btw I am suspecting swig because it appears that some faiss Python bindings were not generated in the failing build:

-----------------------------------------------------------------------------------------

/<<PKGBUILDDIR>>/build/faiss/python/CMakeFiles/swigfaiss.dir/swigfaissPYTHON_wrap.cxx: In function ‘PyObject* swig_ptr(PyObject*)’:
/<<PKGBUILDDIR>>/build/faiss/python/CMakeFiles/swigfaiss.dir/swigfaissPYTHON_wrap.cxx:4939:41: error: ‘SWIGTYPE_p_unsigned_long_long’ was not declared in this scope; did you mean ‘SWIGTYPE_p_unsigned_long’?
 4939 | return SWIG_NewPointerObj(data, SWIGTYPE_p_unsigned_long_long, 0);
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/<<PKGBUILDDIR>>/build/faiss/python/CMakeFiles/swigfaiss.dir/swigfaissPYTHON_wrap.cxx:1136:94: note: in definition of macro ‘SWIG_NewPointerObj’
 1136 | #define SWIG_NewPointerObj(ptr, type, flags) SWIG_Python_NewPointerObj(NULL, ptr, type, flags)
      | ^~~~
/<<PKGBUILDDIR>>/build/faiss/python/CMakeFiles/swigfaiss.dir/swigfaissPYTHON_wrap.cxx:4946:41: error: ‘SWIGTYPE_p_long_long’ was not declared in this scope; did you mean ‘SWIGTYPE_p_long’?
 4946 | return SWIG_NewPointerObj(data, SWIGTYPE_p_long_long, 0);
      | ^~~~~~~~~~~~~~~~~~~~
/<<PKGBUILDDIR>>/build/faiss/python/CMakeFiles/swigfaiss.dir/swigfaissPYTHON_wrap.cxx:1136:94: note: in definition of macro ‘SWIG_NewPointerObj’
 1136 | #define SWIG_NewPointerObj(ptr, type, flags) SWIG_Python_NewPointerObj(NULL, ptr, type, flags)
      | ^~~~
[ 92%] Building CXX object c_api/CMakeFiles/faiss_c.dir/utils/distances_c.cpp.o
[ 92%] Building CXX object tests/CMakeFiles/faiss_test.dir/test_pq_encoding.cpp.o

-----------------------------------------------------------------------------------------

[Pushkar Kulkarni (pushkarnk)]

Upstream kind of confirmed that this is caused by swig 4.2.0 [1].

[1] https://github.com/facebookresearch/faiss/issues/3239#issuecomment-1926751972