mkdir -p /tmp/grass_addons/Planetary/cspice-pkg/build
gcc -shared -fPIC -O2 -w -std=gnu89 -DNON_UNIX_STDIO \
    -I/tmp/grass_addons/Planetary/cspice-pkg/cspice/include \
    -o /tmp/grass_addons/Planetary/cspice-pkg/build/libcspice.so \
    /tmp/grass_addons/Planetary/cspice-pkg/cspice/src/cspice/*.c -lm
=== libcspice.so built ===
make -C cspice-pkg/utils CSPICE_BUILD=/tmp/grass_addons/Planetary/cspice-pkg/build INST_DIR=/usr/local/grass85
make[1]: Entering directory '/tmp/grass_addons/Planetary/cspice-pkg/utils'
cc -g -O2 -Wall -I/tmp/grass_addons/Planetary/cspice-pkg/utils/../cspice/include -o spice-brief spice-brief.c -L/tmp/grass_addons/Planetary/cspice-pkg/build -lcspice -Wl,-rpath,/tmp/grass_addons/Planetary/cspice-pkg/build -lm
cc -g -O2 -Wall -I/tmp/grass_addons/Planetary/cspice-pkg/utils/../cspice/include -o spice-ckbrief spice-ckbrief.c -L/tmp/grass_addons/Planetary/cspice-pkg/build -lcspice -Wl,-rpath,/tmp/grass_addons/Planetary/cspice-pkg/build -lm
cc -g -O2 -Wall -I/tmp/grass_addons/Planetary/cspice-pkg/utils/../cspice/include -o spice-chronos spice-chronos.c -L/tmp/grass_addons/Planetary/cspice-pkg/build -lcspice -Wl,-rpath,/tmp/grass_addons/Planetary/cspice-pkg/build -lm
cc -g -O2 -Wall -I/tmp/grass_addons/Planetary/cspice-pkg/utils/../cspice/include -o spice-commnt spice-commnt.c -L/tmp/grass_addons/Planetary/cspice-pkg/build -lcspice -Wl,-rpath,/tmp/grass_addons/Planetary/cspice-pkg/build -lm
make[1]: Leaving directory '/tmp/grass_addons/Planetary/cspice-pkg/utils'
python3 scripts/md2html_grass.py planetary/
error: python3-mistune is required (apt-get install python3-mistune)
make: *** [Makefile:71: modules] Error 1