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Extend --emit dep-info to optionally list "phony" tagets for all dependencies #21645

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thepowersgang opened this issue Jan 26, 2015 · 2 comments
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Extend --emit dep-info to optionally list "phony" tagets for all dependencies #21645

thepowersgang opened this issue Jan 26, 2015 · 2 comments
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A-frontend Area: Compiler frontend (errors, parsing and HIR)

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@thepowersgang
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When using --emit=dep-info in a makefile, a missing file (due to being renamed or re-factored away) will cause make to terminate the build instantly.

GCC/Clang mitigate this by using the -MP flag when creating dependencies, which emits extra rules of the form dependency: to tell make to ignore the files if they are missing.
@steveklabnik steveklabnik added the A-frontend Area: Compiler frontend (errors, parsing and HIR) label Jan 27, 2015
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Triage: not aware of any changes here.

@thepowersgang
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Duplicate of #28735, and fixed in 1741962. Closing

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