diff options
Diffstat (limited to 'Cython/Compiler/ModuleNode.py')
| -rw-r--r-- | Cython/Compiler/ModuleNode.py | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Cython/Compiler/ModuleNode.py b/Cython/Compiler/ModuleNode.py index 502175402..cc291430e 100644 --- a/Cython/Compiler/ModuleNode.py +++ b/Cython/Compiler/ModuleNode.py @@ -506,6 +506,27 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode): code.putln("/* Generated by Cython %s */" % Version.watermark) code.putln("") code.putln("#define PY_SSIZE_T_CLEAN") + + # sizeof(PyLongObject.ob_digit[0]) may have been determined dynamically + # at compile time in CPython, in which case we can't know the correct + # storage size for an installed system. We can rely on it only if + # pyconfig.h defines it statically, i.e. if it was set by "configure". + # Once we include "Python.h", it will come up with its own idea about + # a suitable value, which may or may not match the real one. + code.putln("#ifndef CYTHON_USE_PYLONG_INTERNALS") + code.putln("#ifdef PYLONG_BITS_IN_DIGIT") + # assume it's an incorrect left-over + code.putln("#define CYTHON_USE_PYLONG_INTERNALS 0") + code.putln("#else") + code.putln('#include "pyconfig.h"') + code.putln("#ifdef PYLONG_BITS_IN_DIGIT") + code.putln("#define CYTHON_USE_PYLONG_INTERNALS 1") + code.putln("#else") + code.putln("#define CYTHON_USE_PYLONG_INTERNALS 0") + code.putln("#endif") + code.putln("#endif") + code.putln("#endif") + for filename in env.python_include_files: code.putln('#include "%s"' % filename) code.putln("#ifndef Py_PYTHON_H") |