Use NAME_MAX instead of MAXNAMLEN NAME_MAX is POSIX, and available in all C libraries, generally in <limits.h>, while MAXNAMLEN is BSD-specific, and only available in musl in <sys/param.h>. So let's use NAME_MAX instead of MAXNAMLEN. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Index: b/src/index_dir.c =================================================================== --- a/src/index_dir.c +++ b/src/index_dir.c @@ -29,7 +29,7 @@ #include <fcntl.h> #include "compat.h" -#define MAX_FILE_LENGTH MAXNAMLEN +#define MAX_FILE_LENGTH NAME_MAX #define MAX_PATH_LENGTH PATH_MAX #define INT_TO_HEX(x) \