pip install can't find proper boost directory

[peijin94]

On MacOS 14.1.1 M2
the installation command python -m pip install python-casacore returns error message of:

clang -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk -I/Users/peijinz/lofarsun/include -I/opt/homebrew/opt/[email protected]/Frameworks/Python.framework/Versions/3.11/include/python3.11 -c src/fit.cc -o build/temp.macosx-14-arm64-cpython-311/src/fit.o -std=c++11
      src/fit.cc:28:10: fatal error: 'boost/python.hpp' file not found
      #include <boost/python.hpp>
               ^~~~~~~~~~~~~~~~~~
      1 error generated.
      error: command '/usr/bin/clang' failed with exit code 1
      [end of output]

Have installed boost with brew install boost
Tried --no-binary option, still getting the same error

[gmloose]

The current setup.py is a bit "stupid" and quite Linux-oriented (rework is planned). You may want to set the environment variable LD_LIBRARY_PATH to the path containing the Boost libraries. That should help finding the right libs.

[tammojan]

Instead of 'stupid' I'd say the current system is 'primitive' :) The compiler is missing an include, so rather than LD_LIBRARY_PATH (which on MacOS is called DYLD_LIBRARY_PATH), it is probably better to do something like export CPATH=/path/to/boost_includes (without the boost part), or export CXXPATH=/path/to/boost_includes. Sorry this is so hard. I have not installed casacore on my own M1 yet.
@ludwigschwardt recently mentioned he may have improvements for MacOS packaging (also through cibuildwheels).

[gmloose]

I don't want to quibble, but setting LD_LIBRARY_PATH might still be a good idea, or even necessary, because setup.py uses that variable to extend the search path for libraries. I'm not sure if setting CPATH and CXXPATH suffices, but I also cannot test this, because I don't have a Mac at hand.

[ludwigschwardt]

Hi, I fixed this a while ago in my cibuildwheel branch, but never committed the code 😅 I've made a PR. Peijin, could you check if it works for you?

[peijin94]

I can confirm I have the directory /opt/homebrew/include/boost/
But still, it shows the can't find boost/python.hpp error.
Should I set -L -I manually before pip install

[tammojan]

You could have a look at the setup.py, where it specifies the include path and library path, and hack in your local directories there.

[peijin94]

python setup.py in the newest master branch commit.

Still have boost/python.hpp not found error.
Strange that it doesn't show the "boost not installed error"

[ludwigschwardt]

I would do python -m build if you want to go the modern route.

On my machine it finds boost but complains about standard library include files:

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/cstdlib:90:5:
error: <cstdlib> tried including <stdlib.h> but didn't find libc++'s <stdlib.h> header.

This usually means that your header search paths are not configured properly.
The header search paths should contain the C++ Standard Library headers before
any C Standard Library, and you are probably using compiler flags that make that
not be the case.

I'll see if I can fix that too (although I suspect it's a problem confined to my computer 🙂 ).

[gmloose]

Was fixed by #253 and #255