Interesting … This is error from cloned repo:
$ LC_ALL=en MIX_APP_PATH=. make clean all
rm -f ./priv/sqlite3_nif.so
mkdir -p priv
cc -g -O3 -Wall -I"" -Isqlite3 -Ic_src -DSQLITE_THREADSAFE=1 -DSQLITE_USE_URI -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_FTS5 -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_GEOPOLY -DSQLITE_OMIT_DEPRECATED -DSQLITE_ENABLE_RTREE -DSQLITE_ENABLE_RBU -DNDEBUG=1 -shared -fPIC -fvisibility=hidden -Wl,-soname,libsqlite3.so.0 sqlite3/sqlite3.c c_src/sqlite3_nif.c -o priv/sqlite3_nif.so
/bin/sh: warning: setlocale: LC_ALL: cannot change locale (en)
c_src/sqlite3_nif.c:5:10: fatal error: erl_nif.h: No such file or directory
5 | #include <erl_nif.h>
| ^~~~~~~~~~~
compilation terminated.
make: *** [Makefile:55: priv/sqlite3_nif.so] Error 1
Edit: mix compile on cloned repository compiled without any error.
