Found the following significant warnings:
  vcglib/wrap/ply/plylib.cpp:3666:38: warning: passing argument 1 to restrict-qualified parameter aliases with argument 3 [-Wrestrict]
  vcglib/wrap/io_trimesh/import_stl.h:143:8: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  vcglib/wrap/io_trimesh/import_stl.h:147:8: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  vcglib/wrap/io_trimesh/import_stl.h:188:8: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  vcglib/wrap/io_trimesh/import_stl.h:199:12: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  vcglib/wrap/io_trimesh/import_stl.h:200:12: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  vcglib/wrap/io_trimesh/import_stl.h:201:12: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  vcglib/wrap/io_trimesh/import_stl.h:104:9: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  vcglib/wrap/io_trimesh/import_stl.h:113:9: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  vcglib/wrap/io_trimesh/import_stl.h:120:11: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  vcglib/wrap/io_trimesh/import_stl.h:121:11: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  vcglib/wrap/io_trimesh/import_stl.h:122:11: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
See ‘/data/gannet/ripley/R/packages/tests-devel/Rvcg.Rcheck/00install.out’ for details.