[tpm] Change create date of a directory

Indy Singh indy at indigostar.com
Tue May 22 18:56:32 PDT 2012

Hi all,
Is there a Perl way of changing the create date of a directory?  utime only 
seems to allow changing the access and modification time.

I may going about this the wrong way.  Perhaps someone can comment.

What I am trying to do (simplified example) is create a makefile that will 
copy file from an input directory to an output directory if any input file 
is newer than the output file.

I am working on Windows 7, with microsoft nmake, and cygwin touch.

Makefile #1 below works, but has the disadvantage that it requires 3 targets 
and a dummy file has to be left lying around.

Makefile #2 uses the timestamp of the output directory as the dummy target. 
It almost works except that the nmake that I am using seems to look at the 
'create' date of the directory rather than the 'modified' date.  This is 
probably a bug in nmake, but I don't want to use something else otherwise it 
will start a chain reaction of more changes to existing makefile.

outdir: indir\*.pl
    if not exist $@ mkdir $@
    for %f in ($?) do copy %f outdir
    touch $@

    mkdir $@

outdir\dummy: indir\*.pl
    for %f in ($?) do copy %f outdir
    touch outdir\dummy

try: outdir indir\dummy

Indy Singh
IndigoSTAR Software -- www.indigostar.com

More information about the toronto-pm mailing list