bugmake - Bugs: bug #7575, "make -n" leaves...


bug #7575: "make -n" leaves intermediate files which are deleted without "-n"

Submitted by:  None
Submitted on:  Wed 04 Feb 2004 07:46:38 AM UTC  
Severity:  3 - Normal Item Group:  Bug
Status:  None Privacy:  Public
Assigned to:  None Open/Closed:  Open
Component Version:  3.79.1 Operating System:  Any
Fixed Release:  None Triage Status:  None

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Wed 04 Feb 2004 07:46:38 AM UTC, original submission:

I use a special pair of rules to autogenerate dependencies. A "pair" because there are two separate stages -- "gcc -MM" and "sed s/.../.../", and each can generate an error.

This is done with following rules (gcc>2.95, due to "-MF"):

%.d: %.dep
sed 's/$*.o :/$.o $@:/' <$*.dep >$@
%.dep: %.c
$(CC) -MM $(CPPFLAGS) $< -MF$@ >/dev/null

and "include $(ALLDEPENDS)" where ALLDEPENDS contains list of all .d-files.

Everything is fine -- make regenerates these .d-files upon change of .c or any of included files, and automatically removes intermediate .dep-files.

BUT: when running with "-n" switch, make still performs this .c->.dep->.d sequence (since otherwise it wouldn't be able to have an up-to-date makefile), but DOES NOT remove .dep-files. So that they remain sitting there forever.

Dmitry Yu. Bolkhovityanov, D.Yu.BolkhovityanovATinp.nsk.su
(BTW, does Savannah registration work? It tells "You are now being sent a confirmation email", but that email never reaches me...)



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Follows 1 latest change.

Date Changed by Updated Field Previous Value => Replaced by
2004-10-06 psmith Carbon-Copy- => Added d --DOT-- yu --DOT-- bolkhovityanov --AT-- inp --DOT-- nsk --DOT-- su

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