Makefile:24: warning: overriding recipe for target 'install'
/usr/local/grass85/include/Make/Module.make:27: warning: ignoring old recipe for target 'install'
mkdir -p /tmp/build/i.atcorr2/bin
mkdir -p /tmp/build/i.atcorr2/etc
mkdir -p /tmp/build/i.atcorr2/docs/html
mkdir -p /tmp/build/i.atcorr2/docs/man
mkdir -p /tmp/build/i.atcorr2/docs/man/man1
test -d OBJ.x86_64-pc-linux-gnu || mkdir -p OBJ.x86_64-pc-linux-gnu
gcc  -O2 -std=gnu99 -m64   -I/usr/local/grass85/include -I/usr/local/grass85/include   -O3 -ffast-math -fopenmp -std=c11 -Wall -Wextra -Wno-unused-parameter -DPACKAGE=\""grassmods"\"  -I/usr/include/sixsv -I/usr/local/grass85/include -I/usr/local/grass85/include -DRELDIR=\"/tmp/grass_addons/i.atcorr2\" -o OBJ.x86_64-pc-linux-gnu/main.o -c main.c
main.c:40:10: fatal error: sixsv/atcorr.h: No such file or directory
   40 | #include <sixsv/atcorr.h>
      |          ^~~~~~~~~~~~~~~~
compilation terminated.
make: *** [/usr/local/grass85/include/Make/Compile.make:32: OBJ.x86_64-pc-linux-gnu/main.o] Error 1