search for: libnbd_have_

...enerator/generator +++ b/generator/generator @@ -2712,6 +2712,12 @@ let print_extern name args ret = print_call name args ret; pr ";\n" +let print_extern_and_define name args ret = + let name_upper = String.uppercase_ascii name in + print_extern name args ret; + pr "#define LIBNBD_HAVE_NBD_%s 1\n" name_upper; + pr "\n" + let generate_include_libnbd_h () = generate_header CStyle; @@ -2729,14 +2735,23 @@ let generate_include_libnbd_h () = List.iter (fun (n, i) -> pr "#define LIBNBD_%-30s %d\n" n i) constants; pr "\n"; pr "ext...

...ke 'nbdinfo --map') will want to be compiled against libnbd 1.18 in the first place, to take advantage of nbd_block_status_64(). 2) If the application REALLY needs to preserve 1.16 behavior, even when compiled against 1.18 or newer, it is easy enough to add the following escape hatch: #if LIBNBD_HAVE_NBD_SET_REQUEST_EXTENDED_HEADERS nbd_set_request_extended_headers(h, 0); #endif And since such an escape hatch is only needed in the finite (possibly empty?) set of programs that need to preserve the older behavior, it does not introduce scaling problems. Because my approach is a subtle change, I...