[PD] LD_PRELOAD on Linux?
agitato816 at gmail.com
Sat Jan 17 21:20:52 CET 2015
Thanks for your kindness, IOhannes. I'm still trying on it. I'll post again
when it solved.
On Sun, Jan 11, 2015 at 9:31 PM, IOhannes m zmölnig <zmoelnig at iem.at> wrote:
> On 01/10/15 22:07, Jonghyun Kim wrote:
> > FYI, leapmotion.pd_linux compiled with flext(c++).
> disclaimer: this is only general advice, i don't have a leapmotion nor
> ever used the external in question.
> - properly link leapmotion.pd_linux against libLeap.so
> if you do
> $ ldd leapmotion.pd_linux | grep -i leap
> you should see a line containing "libLeap.so"
> - make sure that the libLeap.so library can be found by the runtime linker.
> you can see that it is not found properly, if the above cmdline gives
> you something like:
> libLeap.so => not found
> there are two ways to fix this:
> - either use the environment variable LD_LIBRARY_PATH to point to the
> path where libLeap.so is liven before starting Pd (this is a hack; if
> possible do not use it; it's also very similar to what you already have)
> - install libLeap.so into a place that is searched automatically by your
> linker (e.g. /usr/local/lib)
> the second one is obviously preferred.
> if - for whatever reasons - you want to keep using an evnironment
> variable, you could create a wrapper script, that you run instead of the
> actual Pd-binary, and which set's up the envvar:
> LD_LIBRARY_PATH=/path/to/my/leap-library/ /usr/bin/pd $@
> if your actual Pd-binary is /usr/bin/pd (as installed by the Debian
> packages, e.g. on ubuntu), you could even call this script "pd" and put
> it into "/usr/local/bin" (requires root).
> if you then type "pd" on the cmdline, it will call the script from
> /usr/local which in turn calls the binary in /usr/bin...
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