[Work] trimesh2-2.8 compilation error

under gcc-3.3.5

make -C libsrc all
make[1]: Entering directory `/local/home/tongbo/shape/trimesh2/libsrc'
mkdir OBJ.Linux
Compiling TriMesh_bounding.cc
cc1plus: error: unrecognized option `-Wextra'
cc1plus: error: unrecognized option `-fopenmp'
cc1plus: error: unrecognized option `-ftree-vectorize'
make[1]: *** [OBJ.Linux/TriMesh_bounding.o] Error 1
make[1]: Leaving directory `/local/home/tongbo/shape/trimesh2/libsrc'
make: *** [all] Error 2