[bug #53568] GNU Make sometime doesn't reliably remove target file on being interrupted.

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?53568>

                 Summary: GNU Make sometime doesn't reliably remove target
file on being interrupted.
                 Project: make
            Submitted by: None
            Submitted on: Thu 05 Apr 2018 08:24:35 PM UTC
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: 4.2.1
        Operating System: MS Windows
           Fixed Release: None
           Triage Status: None

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Details:

This is a document describing the expected behaviour:
[https://www.gnu.org/software/make/manual/html_node/Interrupts.html](url)

However, in rare case (I still can't tell, but I think it relates to resource
locking), make doesn't remove target file when being interrupted.

With my example makefile:


all: foo

foo:
        while true; do echo bar >> foo; cat foo > /dev/null ; done


Try run `make`, then CTRL+C at anytime. There will be messages:


make: *** Deleting file 'foo'
make: *** [Makefile:4: foo] Interrupt


Sometime, the file 'foo' is still there. I tried running with --debug=all,
there was nothing special when the 'foo' stayed. This silently result in an
incomplete file which is not straight forward to see in a large project in
real use.

I can reproduce in my two machine.
This is my main setup (this one produce the problem more frequent):


$ make --version
GNU Make 4.2.1
Built for i686-pc-msys
$ uname -a
MSYS_NT-6.1 MYNAME3950 2.9.0(0.318/5/3) 2017-09-13 23:42 i686 Msys


This is my second setup:


$ gmake --version
GNU Make 4.2.1
Built for x86_64-apple-darwin13.4.0
$ uname -a
Darwin Purr.local 13.4.0 Darwin Kernel Version 13.4.0: Mon Jan 11 18:17:34 PST
2016; root:xnu-2422.115.15~1/RELEASE_X86_64 x86_64






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