Created attachment 390188 [details, diff] files/lksctp-tools-1.0.16-close.patch .../work/lksctp-tools-1.0.16/src/withsctp/checksctp.c: In function ‘main’: .../work/lksctp-tools-1.0.16/src/withsctp/checksctp.c:55:5: warning: implicit declaration of function ‘close’ [-Wimplicit-function-declaration] It's inconsequential, really.
This is fixed via https://github.com/sctp/lksctp-tools/commit/889ea52a67e489a629dacac3d064cf4ed3df6f7d#diff-e07cdb58d1f21f840a53fc404eba4269 which is present in >=1.0.17 which is already stable.