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Re: 1.5.5: Problem with Convert::ASN1 module and Perl 5.8.0


Gerrit,

Thanks for the suggestion but I wanted to avoid moving to a new
version of Perl since the production application that I'm working
on is 5.8.0.  I noticed that after compiling 5.8.0 from the source
distribution (5.8.0-5) perldoc fails with an error message about
not being able to create a temporary file:

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
$ date
Mon Oct 20 08:19:25 HST 2003

$ perldoc perlfunc
Error in tempfile() using /tmp/XXXXXXXXXX: Could not create temp file
 /tmp/w4piWtmuSt:  at /usr/bin/perldoc line 564

$ ls -l /tmp
total 0
-rw-r--r--    1 russ     None            0 Oct 20 08:19 w4piWtmuSt

$ perl -V
Summary of my perl5 (revision 5.0 version 8 subversion 0) configuration:
  Platform:
    osname=cygwin, osvers=1.5.5(0.9432), archname=cygwin-multi-64int
    uname='cygwin_nt-5.0 baktu 1.5.5(0.9432) 2003-09-20 16:31 i686 unknown unkno
wn cygwin '
    config_args='-de -Dmksymlinks -Dusemultiplicity -Duse64bitint -Doptimize=-O3
 -Dman3ext=3pm'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=defi
ne
    useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=define use64bitall=undef uselongdouble=undef
    usemymalloc=y, bincompat5005=undef
  Compiler:
    cc='gcc', ccflags ='-DPERL_USE_SAFE_PUTENV -fno-strict-aliasing',
    optimize='-O3',
    cppflags='-DPERL_USE_SAFE_PUTENV -fno-strict-aliasing'
    ccversion='', gccversion='3.3.1 (cygming special)', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lsee
ksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='ld2', ldflags =' -s -L/usr/local/lib'
    libpth=/usr/local/lib /usr/lib /lib
    libs=-lgdbm -lcrypt -lgdbm_compat
    perllibs=-lcrypt -lgdbm_compat
    libc=/usr/lib/libc.a, so=dll, useshrplib=true, libperl=libperl.a
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' -s'
    cccdlflags=' ', lddlflags=' -s -L/usr/local/lib'


Characteristics of this binary (from libperl):
  Compile-time options: MULTIPLICITY USE_64_BIT_INT USE_LARGE_FILES PERL_IMPLICI
T_CONTEXT
  Built under cygwin
  Compiled at Oct 19 2003 10:36:28
  %ENV:
    CYGWIN=""
  @INC:
    /usr/lib/perl5/5.8.0/cygwin-multi-64int
    /usr/lib/perl5/5.8.0
    /usr/lib/perl5/site_perl/5.8.0/cygwin-multi-64int
    /usr/lib/perl5/site_perl/5.8.0
    /usr/lib/perl5/site_perl
    .
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Checking the log.test file created by the build.sh script, I noticed
that the test of tempfile failed:

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
lib/File/Temp/t/tempfile.............Error in tempfile() using
 /tmp/XXXXXXXXXX.t xt: Could not create temp file /tmp/yvTTCjl9aJ.txt:
 at ../lib/File/Temp/t/tempfile.t line 48
FAILED at test 2
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

But, then I noticed this in the log:

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Failed 46 test scripts out of 659, 93.02% okay.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Despite this, the build.sh script goes ahead and installs the
recompiled Perl 5.8.0.  Is this reasonable behavior?

It appears that Cygwin doesn't support the creation and opening
of a temporary file to avoid a race condition as intended by the
File::Temp::tempfile function.  The perldoc seems to indicate
that the use of the File::Temp:tmpnam function would probably
be a better choice under for perldoc under Cygwin since apparently
Cygwin can't handle the file semantics as described in the perldoc
for File::Temp::tempfile.

Thanks,
Russ


On Sun, 19 Oct 2003, Gerrit P. Haase wrote:

> Many thanks for the detailed report.  One more point for 5.8.1 which
> is already available, 5.8.1-2 seems to return the correct value with
> your testcase, please consider upgrading to 5.8.1-2, though it is
> still delivered as test it shold be much better than 5.8.0-5.

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