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Wed Feb 28 03:56:20 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>

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* remake.c (f_mtime): Check for future timestamps; give error and mark
	file as "failed to update".
This commit is contained in:
Roland McGrath 1996-02-29 00:27:25 +00:00
parent 5958f28900
commit b07e961db1
1 changed files with 22 additions and 1 deletions
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23
remake.c
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@ -1,5 +1,5 @@
/* Basic dependency engine for GNU Make. /* Basic dependency engine for GNU Make.
Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 1995 Free Software Foundation, Inc. Copyright (C) 1988,89,90,91,92,93,94,95,96 Free Software Foundation, Inc.
This file is part of GNU Make. This file is part of GNU Make.
GNU Make is free software; you can redistribute it and/or modify GNU Make is free software; you can redistribute it and/or modify
@ -988,6 +988,27 @@ f_mtime (file, search)
file = file->prev; file = file->prev;
} while (file != 0); } while (file != 0);
{
/* Files can have bogus timestamps that nothing newly made will be
"newer" than. Updating their dependents could just result in loops.
So notify the user of the anomaly by treating future files as
unrecoverably absent. */
static time_t now;
if (mtime > now && ! file->updated)
{
/* This file's time appears to be in the future.
Update our concept of the present, and compare again. */
extern time_t time ();
if (mtime > time (&now))
{
error ("*** File `%s' has modification time in the future",
file->name);
file->update_status = 2;
}
}
}
return mtime; return mtime;
} }