Created attachment 418678 [details, diff] Patch that add `#include <linux/limits.h>` to reglib.h When trying to emerge crda-1.1.3 with musl, the build fails because reglib.h does not include <linux/limits.h> even though it makes use of PATH_MAX. I have included a patch that fixes the problem.
Please use the POSIX header <limits.h> if it is just for PATH_MAX. Also, PATH_MAX is not used in reglib.h and would therefore better fit into reglib.c. I think it is indirectly fixed in upstream commit f4c3e3fcae69d90ad3763d2602765104dcb04708. Does version 3.18 work for you?
4.14 built fine here.