Created attachment 179142 [details] Patch to remove inline functions I suggest a patch which will permit to remove USE_GCC= from the port. USE_GCC is ugly because it installs many runtime dependencies.
Created attachment 179207 [details] use gnu89 mode
The problem can be solved simplier with single-line patch switching Clang from its default c99 mode to GCC's default gnu89 mode. The patch is attached.
(In reply to Eugene Grosbein from comment #2) Thanks, your solution is much more correct.
Dear Muhammad, The solution is a one line patch. Why not commit it and move on?
(In reply to vas from comment #4) This has been fixed at revision 433278. https://svnweb.freebsd.org/ports/head/net-mgmt/flow-tools/Makefile?r1=426566&r2=433278&pathrev=433346