primitives/nmg/nmg_tri.c: In function 'nmg_plot_fu':
primitives/nmg/nmg_tri.c:2531:13: error: variable 'temp' set but not used [-Werror=unused-but-set-variable]
primitives/nmg/nmg_tri.c:2530:13: error: variable 'dist_btw_prev_curr' set but not used [-Werror=unused-but-set-variable]
primitives/nmg/nmg_tri.c: In function 'nmg_triangulate_rm_holes':
primitives/nmg/nmg_tri.c:2754:29: error: variable 'vu2' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
make[2]: *** [nmg_tri.lo] Error 1
make[2]: Leaving directory `/home/devlin/source/brlcad-7.20.4/src/librt'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/devlin/source/brlcad-7.20.4/src'
make: *** [all-recursive] Error 1