cygwin 2.0.2, make 4.1: stderr redirect append does not work with native Windows programs
Wed May 27 11:57:00 GMT 2015
On May 12 12:59, Scott McPeak wrote:
> I am attaching a reproducer Makefile. Run "make 2>&1 | cat" to see
> the incorrect output:
> $ make 2>&1 | cat
> echo first > output
> echo secondxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx >>
> /cygdrive/c/Windows/System32/sort.exe nonexist 2>> output; true
> ----- BEGIN output -----
> nonexistThe system cannot find the file specified.
> ----- END output -----
> The bug happens with both make 4.1 and make 4.0 on cygwin 2.0.2. It
> does not happen with make 3.82.90 and cygwin 1.7.23. (And that is
> my only known workaround: downgrade to cygwin 1.7.)
This appears to be an issue with make 4. Using make 3.82.90 under
recent Cygwin "fixes" the issue. "Fixes" in quotes, because this might
be a result of how more recent make versions handle I/O. This could
be a deliberate decision in terms of flushing output to a file.
Then again, it's rather puzzeling that this affects a file only opened
by the subshell.
Marco, do you see a chance trying to find out why this occurs?
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
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