[PD-dev] Gem's undefined symbol / need compilation flag ?
Antoine Villeret via Pd-dev
pd-dev at lists.iem.at
Tue Jun 24 18:00:36 CEST 2014
there was a big mess on my machine and pd was loading the wrong Gem binary
and thanks for the advice
do it yourself
2014-06-23 13:28 GMT+02:00 IOhannes m zmoelnig via Pd-dev <
pd-dev at 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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