On Mon, Jan 19, 2015 at 11:31 AM, Yann Chemin <yche...@gmail.com> wrote: > > Hi, > > porting to grass7 i.spec.sam (grass-addons/grass7/imagery/) > > I am getting a set of complaints like this: > > OBJ.x86_64-unknown-linux-gnu/spec_angle.o:(.bss+0x158): multiple definition of `Avector' > OBJ.x86_64-unknown-linux-gnu/main.o:/home/yann/dev/grass-addons/grass7/imagery/i.spec.sam/main.c:92: first defined here > > while it is actually defined in global.h, and global.h is read in main.c as well as in spectral_angle.c . The line 92 in main.c is the first appearance, without declaring Avector (just using it).>
You just miss an "include guard": #ifndef GRANDFATHER_H #define GRANDFATHER_H struct foo { int member; }; #endif /* GRANDFATHER_H */ (example from http://en.wikipedia.org/wiki/Include_guard) Compare: http://trac.osgeo.org/grass/browser/grass-addons/grass6/imagery/i.spec.sam/global.h?rev=50996 http://trac.osgeo.org/grass/browser/grass-addons/grass7/imagery/i.edge/gauss.h?rev=52501 > > Yann > -- > ---- > > _______________________________________________ > grass-dev mailing list > grass-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-dev
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