Well..... $ which perl ~/soft/perl/5.18.0/usr/local/bin/perl
And: $ perl -v This is perl 5, version 18, subversion 0 (v5.18.0) built for x86_64-linux whereas $ /usr/bin/perl -v This is perl, v5.10.1 (*) built for x86_64-linux-thread-multi (Well... Of course the "thread" in this statement is a lie as RHEL does not contain a threaded Perl. But I'll try perlbrew Mit freundlichen Grüßen / Kind regards Alexander Karner From: Brian Fraser <frase...@gmail.com> To: Alexander Karner/Germany/IBM@IBMDE, Cc: Perl Beginners <beginners@perl.org> Date: 19.09.2013 14:29 Subject: Re: Compilation 5.18.0 on RHEL 6.4 fails to use threads (?) On Thu, Sep 19, 2013 at 8:16 AM, Alexander Karner <a...@de.ibm.com> wrote: Hi! I got the list of options from there: http://mail.perlide.org/pipermail/padre-dev/2010-June/001863.html But I checked a compilation with sh Configure -des -Dusethreads -Dprefix=$HOME/soft/perl/5.18.0 -Dinstallusrbinperl=n -Accflags='-pthread' This results in [...snip...] Build a threading Perl? [y] [...snip...] --> Configure finishes it's job --> make finishes it's job --> Make test --> [...snip...] dist/Storable/t/threads ....................................... ok ... dist/Thread-Queue/t/01_basic .................................. ok dist/Thread-Queue/t/02_refs ................................... ok dist/Thread-Queue/t/03_peek ................................... ok dist/Thread-Queue/t/04_errs ................................... ok dist/Thread-Queue/t/05_extract ................................ ok dist/Thread-Queue/t/06_insert ................................. ok dist/Thread-Queue/t/07_lock ................................... ok dist/Thread-Queue/t/08_nothreads .............................. ok dist/Thread-Queue/t/09_ended .................................. ok dist/Thread-Queue/t/10_timed .................................. ok dist/Thread-Semaphore/t/01_basic .............................. ok dist/Thread-Semaphore/t/02_errs ............................... ok dist/Thread-Semaphore/t/03_nothreads .......................... ok dist/Thread-Semaphore/t/04_nonblocking ........................ ok dist/Thread-Semaphore/t/05_force .............................. ok dist/threads-shared/t/0nothread ............................... ok dist/threads-shared/t/av_refs ................................. ok dist/threads-shared/t/av_simple ............................... ok dist/threads-shared/t/blessed ................................. ok dist/threads-shared/t/clone ................................... ok dist/threads-shared/t/cond .................................... ok dist/threads-shared/t/disabled ................................ ok dist/threads-shared/t/dualvar ................................. ok dist/threads-shared/t/hv_refs ................................. ok dist/threads-shared/t/hv_simple ............................... ok dist/threads-shared/t/no_share ................................ ok dist/threads-shared/t/object2 ................................. ok dist/threads-shared/t/object .................................. ok dist/threads-shared/t/shared_attr ............................. ok dist/threads-shared/t/stress .................................. ok dist/threads-shared/t/sv_refs ................................. ok dist/threads-shared/t/sv_simple ............................... ok dist/threads-shared/t/utf8 .................................... ok dist/threads-shared/t/waithires ............................... ok dist/threads-shared/t/wait .................................... ok dist/threads/t/basic .......................................... ok dist/threads/t/blocks ......................................... ok dist/threads/t/context ........................................ ok dist/threads/t/end ............................................ ok dist/threads/t/err ............................................ ok dist/threads/t/exit ........................................... ok dist/threads/t/free2 .......................................... ok dist/threads/t/free ........................................... ok dist/threads/t/join ........................................... ok dist/threads/t/kill2 .......................................... ok dist/threads/t/kill ........................................... ok dist/threads/t/libc ........................................... ok dist/threads/t/list ........................................... ok dist/threads/t/no_threads ..................................... skipped dist/threads/t/problems ....................................... ok dist/threads/t/stack_env ...................................... ok dist/threads/t/stack .......................................... ok dist/threads/t/state .......................................... ok dist/threads/t/stress_cv ...................................... ok dist/threads/t/stress_re ...................................... ok dist/threads/t/stress_string .................................. ok dist/threads/t/thread ......................................... ok [...snip...] BUT with perl -V config_args='-des -Doptimize=-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -Accflags=-DPERL_USE_SAFE_PUTENV -I/usr/include/gdbm -Aappend:libswanted=-l resolv -Dversion=5.18.0 -Dmyhostname=localhost -Dperladmin=aka at de.ibm.com -Dcc=gcc -Dcf_by=Alex -Dprefix=/home/akarner/soft/perl/5.18.0 -Darchname=x86_64-linux-thread-multi -Dlibpth=/usr/local/lib64 /lib64 /usr/lib64 -Duseshrplib -Dusethreads -Duseithreads -Duselargefiles -Dd_semctl_semun -Di_db -Ui_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm -Duseperlio -Dinstallusrbinperl=n -Ubincompat5005 -Uversiononly -Dpager=/usr/bin/less -isr -Dd_gethostent_r_proto -Ud_endhostent_r_proto -Ud_sethostent_r_proto -Ud_endprotoent_r_proto -Ud_setprotoent_r_proto -Ud_endservent_r_proto -Ud_setservent_r_proto -Dinc_version_list=none' hint=recommended, useposix=true, d_sigaction=define useithreads=undef, usemultiplicity=undef >From memory, with those options, the perl binary will be installed in '$HOME/soft/perl/5.18.0/bin/perl5.18.0' -- so unless you've put that in your path, and created a 'perl' symlink pointing to that perl5.18.0 binary, that 'perl -V' will still be picking up your system perl. All the more reasons to use perlbrew, really, since it'll handle the symlinking and whatnot for you.
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