On Mon, Nov 10, 2008 at 04:24:54PM +0100, Jan Kratochvil wrote:
> The problem is in the festival libraries build. They use the default
> visibility and their symbol `backtrace':
> ./speech_tools/siod/slib.cc
> LISP backtrace = NIL;
> is being overriden by the glibc function `backtrace':
> /usr/include/execinfo.h
> extern int backtrace (void **__array, int __size) __nonnull ((1));
> One apparently cannot write to a .text readonly section as it attempts to.
>
> The package festival should be built with -fvisibility=hidden and specific
> global functions/variables marked by `__attribute__ ((visibility("default")))'
> as described in `man gcc' -fvisibility and
> http://people.redhat.com/drepper/dsohowto.pdf .
>
> As a temporary workaround you may use dlopen() flag RTLD_DEEPBIND.
> BTW it is also more effective to use RTLD_LAZY than RTLD_NOW.
Can you file this in bugzilla so that I don't forget about it? I'm planning
to do a big update of festival after F10 is out the door.
--
Matthew Miller <mattdm@xxxxxxxxxx>
Senior Systems Architect
Cyberinfrastructure Labs
Computing & Information Technology
Harvard School of Engineering & Applied Sciences
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