cmd/audio: invalid conversion from 'char' to 'char*'
cmd - userland programs
Build error from gcc 7:
In file included from AudioLib.cc:29:0: ../include/Audio.h:89:18: error: invalid conversion from 'char' to 'char*' [-fpermissive] char *msg = '\0') const; // error message ^~~~ *** Error code 1 dmake: Warning: Command failed for target `AudioLib.o'
Note this is just one example, since the error is on header, many files are affected.