configuration options for local perl install with threads

tphyahoo has asked for the wisdom of the Perl Monks concerning the following question:

Every so often I install perl locally, using more or less the folllowing thread, minus the -Duseithreads bit.

Now I want to compile perl with threads, so the -Duseithreads bit is in there. But doesn't work. I've tried this a couple ways: -Dusethreads and -Duseithreads. It compiles, but when I try to use it with threads, it says I didn't compile it with threads. After like half an hour of churning.

What am I doing wrong? Am I not supposed to repeat the "-D" bit (right now I have it twice, once for specifying the local directory, once for the ithreads bit).

Also, is there a difference between -Dusethreads and -Duseithreads?

Thanks!

angebote@debian:/usr/angebote/thartman$ cat install-local-threaded-per
+l.sh
(
wget http://search.cpan.org/CPAN/authors/id/N/NW/NWCLARK/perl-5.8.8.ta
+r.gz
tar -xzvf perl-5.8.8.tar.gz
cd perl-5.8.8
sh Configure -Dprefix=/usr/angebote/thartman/perlroot/perl -Duseithrea
+ds -des #make this your home directory
make test
make install
) | tee perlinstall.out
angebote@debian:/usr/angebote/thartman$
[download]

Comment on configuration options for local perl install with threads Download Code

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Re: configuration options for local perl install with threads by dave_the_m (Monsignor) on Oct 30, 2006 at 20:14 UTC
Your compile options look okay. Your execution errors imply that you are either using the wrong executable or trying to invove threads incorrectly. Does the following work for you: `/usr/angebote/thartman/perlroot/perl/bin/perl -e 'use ithreads'` [download] Dave.	[reply] [d/l]
Re^2: configuration options for local perl install with threads by Joost (Canon) on Oct 30, 2006 at 20:34 UTC
the module name for ithreads is "threads": `perl -e 'use threads; print "ok\n"'` [download] As for the OP, in my ithreaded perl both "usethreads" & "useithreads" (and "usemultiplicity") are set. Maybe you need -Dusethreads and -Duseithreads (and -Dusemultiplicity) to compile perl with ithreads - I don't know for sure since I always do a ~~"manual"~~ interactive Configure. Full output of my perl -V: Read more... (3 kB) "What should it profit a man, if he should win a flame war, yet lose his cool?"	[reply] [d/l] [select]
Re: configuration options for local perl install with threads by Khen1950fx (Canon) on Oct 30, 2006 at 23:45 UTC
To answer your question regarding the difference between -Dusethreads and -Duseithreads---there is no -Duseithreads. According to the INSTALL doc: "By default, Configure selects ithreads if -Dusethreads is specified". As for the next question, you didn't compile it with threads because you used -Duseithreads when you should have used -Dusethreads.	[reply]
Re^2: configuration options for local perl install with threads by dave_the_m (Monsignor) on Oct 31, 2006 at 10:26 UTC
Er, no. -Duseithreads is effectively a synonym for -Dusethreads. Dave.	[reply]

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