musl has removed the non-prototype declaration of basename from
string.h [1] which now results in build errors with clang-17+ compiler
Implement GNU basename behavior using strchr which is portable across libcs
Fixes
../git/tools/kmod.c:71:19: error: call to undeclared function 'basename'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
71 | "Commands:\n", basename(argv[0]));
| ^
[1] https://git.musl-libc.org/cgit/musl/commit/?id=725e17ed6dff4d0cd22487bb64470881e86a92e7
Suggested-by: Rich Felker
Signed-off-by: Khem Raj <raj.khem@gmail.com>
[ Implement a basename() function in missing.h and ensure we always use
the right include rather than having a separate gnu_basename() ]
Signed-off-by: Lucas De Marchi <lucas.de.marchi@gmail.com>
The symbol was somewhat recently introduced by the kernel and not all
distributions may be have available.
The number is part of the ABI, so we can add a local fallback define.
Closes: https://github.com/kmod-project/kmod/issues/29
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Lucas De Marchi <lucas.de.marchi@gmail.com>
