Attempt to remove the RTLD_GLOBAL hack.

Author: bluescarni

heyoka/__init__.py

@@ -9,45 +9,11 @@
 # Version setup.
 from ._version import __version__
 
-import os as _os
 import cloudpickle as _cloudpickle
 from threading import Lock as _Lock
 
-if _os.name == "posix":
-    # NOTE: on some platforms Python by default opens extensions
-    # with the RTLD_LOCAL flag, which creates problems because
-    # public symbols used by heyoka (e.g., sleef functions, quad
-    # precision math) are then not found by the LLVM jit machinery.
-    # Thus, before importing core, we temporarily flip on the
-    # RTLD_GLOBAL flag, which makes the symbols visible and
-    # solves these issues. Another possible approach suggested
-    # in the llvm discord is to manually and explicitly add
-    # libheyoka.so to the DL search path:
-    # DynamicLibrarySearchGenerator::Load(“/path/to/libheyoka.so”)
-    # See:
-    # https://docs.python.org/3/library/ctypes.html
-    import ctypes as _ctypes
-    import sys as _sys
-
-    _orig_dlopen_flags = _sys.getdlopenflags()
-    _sys.setdlopenflags(_orig_dlopen_flags | _ctypes.RTLD_GLOBAL)
-
-    try:
-        # We import the sub-modules into the root namespace.
-        from .core import *
-    finally:
-        # Restore the original dlopen flags whatever
-        # happens.
-        _sys.setdlopenflags(_orig_dlopen_flags)
-
-        del _ctypes
-        del _sys
-        del _orig_dlopen_flags
-else:
-    # We import the sub-modules into the root namespace.
-    from .core import *
-
-del _os
+# We import the sub-modules into the root namespace.
+from .core import *
 
 # Explicitly import the submodules
 # NOTE: it is *important* that the import is performed