Re: Possible Showstopper

[Andreas Jaeger <aj@arthur.rhein-neckar.de>]

>>>>> Joe Buck writes:

>> In message < 199712022253.OAA06067@supernova.earthlink.net >you write:
>> > 
>> > The new 971201 snapshot did not fix the problem I am having on my
>> > RedHat 5.0 system (i686-pc-linux-gnu).  In particular, make check
>> > fails horribly for many C++ tests, like this:
>> With RedHat only being out for 2 days I think the way to go is to make a minor
>> release in a week or so to fix this specific problem.
>> 
>> > At the very least, something needs to go in the release notes about
>> > this.
>> Agreed.

 > Will it work around the problem if users add -lpthread to their link
 > line?
That might work but is unneccassary.
 > (Yes, it sucks that we got burned by 5.0, but we did want to support
 > popular Linux distributions).

A better solution is to change
linuxthreads/sysdeps/pthread/libc-lock.h (it's installed as
/usr/include/libc-lock.h) with the following patch (it's a bug in the
current glibc 2.0.5c):

Andreas

--- /usr/glibc/glibc-2.0.5/glibc-2.0.5c-src/linuxthreads/sysdeps/pthread/libc-lo
ck.h    Mon Aug 18 16:01:50 1997
+++ linuxthreads/sysdeps/pthread/libc-lock.h    Wed Nov 19 00:47:11 1997

@@ -166,6 +166,11 @@
 /* We need portable names for some functions.  E.g., when they are
    used as argument to __libc_cleanup_region_start.  */
 # define __libc_mutex_unlock __pthread_mutex_unlock
+#else
+# ifdef __ELF__
+#  pragma weak _pthread_cleanup_push_defer
+#  pragma weak _pthread_cleanup_pop_restore
+# endif
 #endif
 
 #endif /* bits/libc-lock.h */


-- 
 Andreas Jaeger   aj@arthur.rhein-neckar.de    jaeger@informatik.uni-kl.de
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