[libcpp] Reimplement mkdeps data structures
https://gcc.gnu.org/ml/gcc-patches/2019-05/msg00323.html * files.c (_cpp_stack_file): Empty filenames aren't dependencies. * mkdeps.c (deps_add_dep): Assert not empty. From-SVN: r270978
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@ -1,5 +1,8 @@
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2019-05-07 Nathan Sidwell <nathan@acm.org>
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2019-05-07 Nathan Sidwell <nathan@acm.org>
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* files.c (_cpp_stack_file): Empty filenames aren't dependencies.
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* mkdeps.c (deps_add_dep): Assert not empty.
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* include/mkdeps.h (deps_write): Add PHONY arg.
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* include/mkdeps.h (deps_write): Add PHONY arg.
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(deps_phony_targets): Delete.
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(deps_phony_targets): Delete.
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* init.c (cpp_finish): Just call deps_write.
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* init.c (cpp_finish): Just call deps_write.
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@ -906,11 +906,11 @@ _cpp_stack_file (cpp_reader *pfile, _cpp_file *file, bool import,
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sysp = MAX (pfile->buffer->sysp, file->dir->sysp);
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sysp = MAX (pfile->buffer->sysp, file->dir->sysp);
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/* Add the file to the dependencies on its first inclusion. */
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/* Add the file to the dependencies on its first inclusion. */
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if (CPP_OPTION (pfile, deps.style) > !!sysp && !file->stack_count)
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if (!file->stack_count
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{
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&& CPP_OPTION (pfile, deps.style) > !!sysp
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if (!file->main_file || !CPP_OPTION (pfile, deps.ignore_main_file))
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&& file->path[0]
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&& (!file->main_file || !CPP_OPTION (pfile, deps.ignore_main_file)))
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deps_add_dep (pfile->deps, file->path);
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deps_add_dep (pfile->deps, file->path);
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}
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/* Clear buffer_valid since _cpp_clean_line messes it up. */
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/* Clear buffer_valid since _cpp_clean_line messes it up. */
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file->buffer_valid = false;
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file->buffer_valid = false;
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@ -281,6 +281,8 @@ deps_add_default_target (struct mkdeps *d, const char *tgt)
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void
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void
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deps_add_dep (struct mkdeps *d, const char *t)
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deps_add_dep (struct mkdeps *d, const char *t)
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{
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{
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gcc_assert (*t);
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t = apply_vpath (d, t);
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t = apply_vpath (d, t);
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d->deps.push (xstrdup (t));
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d->deps.push (xstrdup (t));
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