URL:
<http://savannah.gnu.org/bugs/?31400>
Summary: Make 3.82 incorrectly handles circular dependency
chains (3.81 regression)
Project: make
Submitted by: None
Submitted on: Thu 21 Oct 2010 07:08:10 PM UTC
Severity: 3 - Normal
Item Group: Bug
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Component Version: 3.82
Operating System: POSIX-Based
Fixed Release: None
Triage Status: None
_______________________________________________________
Details:
I have a makefile library which contains a large number of circular
dependencies of the form
%.flac : %.wav
...
%.wav : %.flac
...
The idea being that if I have a file e.g. 'test.tta', and run 'make
test.flac', it will pick the series of rules %.wav : %.tta followed by %.flac
: %.wav
This used to work in Make 3.81; it stopped working in 3.82. I have put
together a simple test case:
Makefile:
%.testc : %.testb
test -f "$<" && touch "$@"
%.testb : %.testc
test -f "$<" && touch "$@"
%.testb : %.testa
test -f "$<" && touch "$@"
Commands:
$ touch file.testa
$ make file.testc
make: Circular test.testb <- test.testc dependency dropped.
test -f "" && touch "test.testb"
make: *** [test.testb] Error 1
The corresponding output with make 3.81 is
$ make file.testc
test -f "test.testa" && touch "test.testb"
test -f "test.testb" && touch "test.testc"
rm test.testb
_______________________________________________________
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