49634b3a45
* cppfiles.c (struct _cpp_file): Rename once_only_next to next_file. Remove import and pragma_once, add once_only. (find_file): Add new file structures to the all_files list. (should_stack_file): Mark #import-ed files once-only, and don't stack them if the file has already been stacked. (_cp_mark_file_once_only): Simplify. * cpphash.h (struct cpp_reader): Rename once_only_files to all_files. Rename saw_pragma_once to seen_once_only. (_cpp_mark_file_once_only): Update prototype. * cpplib.c (do_pragma_once): Update. testsuite: * import1.c, import2.c: New tests. From-SVN: r70106
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