At 08:12 AM 11/9/2002 -0500, Paul D. Smith wrote:
g> %:: RCS/%,v g> %:: RCS/% g> %:: s.% g> %:: SCCS/s.%>> You can delete pattern rules. See the GNU make manual, section >> "Canceling Implicit Rules". g> That section only says how to cancel rules that have commands by g> writing a rule without commands. The manual does not seem to g> address how to cancel implicit rules that have no commands. I don't understand your comment. All the above rules have commands. There aren't any pattern rules without commands.
What are the commands? They look like what the manual calls "terminal double-colon rules" You previously wrote:
That is where I got the rules for RCS, SCCS.If you use "make -p -f/dev/null" you can tell which rules will and won't be removed by clearing .SUFFIXES prerequisite list fairly easily: any
I do not want make to waste time and clutter my debug output searching for RCS and SCCS files since I don't have any.
I quote from the manual:
> For example, the built-in implicit rules for extracting sources from
RCS and SCCS files are terminal; as a result, if the file `foo.c,v' does
not exist, `make' will not even consider trying to make it as an
intermediate file from `foo.c,v.o' or from `RCS/SCCS/s.foo.c,v'. RCS
and SCCS files are generally ultimate source files, which should not be
remade from any other files; therefore, `make' can save time by not
looking for ways to remake them.
- Greg Keraunen
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