URL:
<http://savannah.gnu.org/bugs/?32042>
Summary: Rules with multiple outputs and intermediate chains
Project: make
Submitted by: None
Submitted on: Mon 03 Jan 2011 07:32:15 PM UTC
Severity: 3 - Normal
Item Group: Bug
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Component Version: None
Operating System: None
Fixed Release: None
Triage Status: None
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Details:
In the case below, if both output files from a pattern rule are later used as
prerequisites, only the first one will be treated as intermediate.
The steps to reproduce are below.
Expected result of make all: foo.jkl is created, and all other files are
created then deleted
Actual result of make all: foo.jkl is created; foo.abc, foo.def, and foo.ghi
are created; foo.abc and foo.def are deleted; foo.ghi is NOT deleted
all: foo.jkl
%.abc:
date > $@
%.def %.ghi: %.abc
@echo "Generating $*.def and $*.ghi from $*.abc"
@sleep 2
@touch $*.def $*.ghi
%.jkl: %.def %.ghi
cat $^ > $@
clean:
rm -f *.*
When I change the makefile such that the pattern rule that creates %.def and
%.ghi is created through the use of a template and $(eval $(call MY_TEMPLATE))
as in section 8.8 of the GNU Make Manual, neither foo.def nor foo.ghi are
deleted.
This behavior seems to be inconsistent with the description of how implicit
chains should be handled (in section 10.4 of the manual).
_______________________________________________________
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