Correction for the fix for Bug 3508 - Persistent storage support breaks Linux compatibility. A 2nd `make install' will fail attempting to create symlink libnvmemmory.so already created by 1st install. Install should pre-emptively delete it.

#ifndef Py_AST_H
#define Py_AST_H
#ifdef __cplusplus
extern "C" {
#endif

PyAPI_FUNC(mod_ty) PyAST_FromNode(const node *, PyCompilerFlags *flags,
				  const char *, PyArena *);

#ifdef __cplusplus
}
#endif
#endif /* !Py_AST_H */