thanks Iohannes,

you're right, there was a big mess on my machine and pd was loading the wrong Gem binary

and thanks for the advice

+ a

-- do it yourself http://antoine.villeret.free.fr

2014-06-23 13:28 GMT+02:00 IOhannes m zmoelnig via Pd-dev < pd-dev@lists.iem.at>:

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On 2014-06-19 15:41, Antoine Villeret via Pd-dev wrote:

...

hello,

i'm trying to make a new build system for pix_opencv based on automake it's mainly inspired by Gem's one

I can make a pix_opencv.l_ia64 on linux but when I tried to load it I got : ./pix_opencv.l_ia64: ./pix_opencv.l_ia64: undefined symbol: _ZN9GemPixObj4SIMDEi pix_opencv: can't load library

maybe I need some flag to fit the Gem build option, but I can't figure out which one. does anybody knows how to link correctly ?

Gem comes with a pkg-config file, that should help you. but then, there is no magic involved and no special compilation flags or defines are involved (but make sure you do NOT define GEM_INTERNAL)

anyhow, the problem you are experiencing is usually related to using Gem-headers that do not match the Gem binary that you use.

e.g. i find that the version of Gem that comes with Debian (0.93.3) lacks the GemPixObj::SIMD(int) method, but the git version provides it.

so make sure that you load the *correct* version of Gem (the git version) before loading pix_opencv.

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