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delaunay

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Elevated Delaunay triangulation

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Constrained Delaunay triangulation

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Voronoï tessellation

3D Delaunay triangulation

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delaunay's Issues

Build fails for lack of required (and stated, but not tested for) libraries

The CRANberries post on delaunay noted 'OS_type` so I got curious. In a quick Docker container (using my r2u where all required packages can be installed in seconds as binaries) we do see

g++ -std=gnu++14 -shared -L/usr/lib/R/lib -Wl,-Bsymbolic-functions -flto=auto -ffat-lto-objects -flto=auto -Wl,-z,relro -o delaunay.so RcppExports.o del2D.o del2DC.o del3D.o delXY.o -lmpfr -lgmp -L/usr/lib/R/lib -lR
/usr/bin/ld: cannot find -lmpfr: No such file or directory                                                                                                                                                         
/usr/bin/ld: cannot find -lgmp: No such file or directory                                                
collect2: error: ld returned 1 exit status                                                                                                                                                                         
make: *** [/usr/share/R/share/make/shlib.mk:10: delaunay.so] Error 1                                     
ERROR: compilation failed for package ‘delaunay’                                                         
* removing ‘/usr/local/lib/R/site-library/delaunay’

and indeed you state this unconditionally in src/Makevars:

PKG_LIBS = -lmpfr -lgmp

(and leaving aside the gymnastics on BH which clearly violate the Suggests: nature, but let's leave that for another day) your (very impressive) journey through R packages is now at the point where you need to deal with external libraries which typically involves

  • a script configure to check if package GNU gmp and GNU mpfr are installed (for example via pkg-config --exists gmp && echo "yes")
  • possible use of pkg-config --libs (and pkg-config --cflags) to set the -L and -I options.

My container is based on Ubuntu jammy so I just did apt install libgmp-dev libmpfr-dev after which build succeeded with

g++ -std=gnu++14 -shared -L/usr/lib/R/lib -Wl,-Bsymbolic-functions -flto=auto -ffat-lto-objects -flto=auto -Wl,-z,relro -o delaunay.so RcppExports.o del2D.o del2DC.o del3D.o delXY.o -lmpfr -lgmp -L/usr/lib/R/lib -lR
installing to /usr/local/lib/R/site-library/00LOCK-delaunay/00new/delaunay/libs
** R
** inst
** byte-compile and prepare package for lazy loading
Warning: 'rgl.init' failed, running with 'rgl.useNULL = TRUE'.
** help
*** installing help indices
** building package indices
** testing if installed package can be loaded from temporary location
Warning: 'rgl.init' failed, running with 'rgl.useNULL = TRUE'.
** checking absolute paths in shared objects and dynamic libraries
** testing if installed package can be loaded from final location
Warning: 'rgl.init' failed, running with 'rgl.useNULL = TRUE'.
** testing if installed package keeps a record of temporary installation path
* DONE (delaunay)

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