perl 5.8.2 threads on Linux/NPTL

[Al Tobey]

I was building perl 5.8.2 on RedHat Enterprise Linux 3.0 (AS) today and
noticed that it included in it's ccflags "-DTHREADS_HAVE_P IDS." I am
building with -Dusethreads. With newer Linux distributions using the
Native Posix Threading Layer (NPTL), this isn't entirely true anymore and
is AFAIK unsupported (using a pid to signal/identify threads). I removed
it from my config.sh script and ran Configure -der. make test runs just
fine.

Just thought I should mention it ...
-Al Tobey

Relevant portion of make test output with the flag removed:
ext/threads/shared/t/0nothread...... .ok
ext/threads/shared/t/av_refs........ .ok
ext/threads/shared/t/av_simple...... .ok
ext/threads/shared/t/cond........... .ok
ext/threads/shared/t/disabled....... .ok
ext/threads/shared/t/hv_refs........ .ok
ext/threads/shared/t/hv_simple...... .ok
ext/threads/shared/t/no_share....... .ok
ext/threads/shared/t/shared_attr.... .ok
ext/threads/shared/t/sv_refs........ .ok
ext/threads/shared/t/sv_simple...... .ok
ext/threads/t/basic.......... ........ok
ext/threads/t/end............ ........ok
ext/threads/t/join........... ........ok
ext/threads/t/libc........... ........ok
ext/threads/t/list........... ........ok
ext/threads/t/problems....... ........ok
ext/threads/t/stress_cv...... ........ok
ext/threads/t/stress_re...... ........ok
ext/threads/t/stress_string.. ........ok
ext/threads/t/thread......... ........ok