[MacPorts] #74382: nmap 7.991 fails on Snow Leopard with "undeclared 'strnlen' (☞ add "PortGroup legacysupport 1.1" to the portfile)

[MacPorts]

#74382: nmap 7.991 fails on Snow Leopard with "undeclared 'strnlen' (☞ add
"PortGroup legacysupport 1.1" to the portfile)
-------------------------------------------------+-------------------------
 Reporter:  balanco                              |      Owner:  (none)
     Type:  defect                               |     Status:  new
 Priority:  Normal                               |  Milestone:
Component:  ports                                |    Version:
 Keywords:  nmap, legacysupport Portgroup, Snow  |       Port:  nmap
  Leopard, undefined strnlen                     |
-------------------------------------------------+-------------------------
 On Snow Leopard, upgrading to nmap 7.991 fails due to undeclared
 'strnlen()':

 From the logfile:

 {{{
  …
  :info:build service_scan.cc:1333:22: error: use of undeclared identifier
 'strnlen'
  :info:build     size_t linelen = strnlen(line, sizeof(line));
  :info:build                      ^
  :info:build 1 error generated.
  …
 }}}

 ☞ adding
 {{{
  PortGroup legacysupport 1.1
 }}}
 to the (the beginning of the…) portfile appears to cover this issue, but
 the following warning is still displayed:

 {{{
  Warning: Configuration logfiles contain indications of -Wimplicit-
 function-declaration; check that features were not accidentally disabled:
    strchr: found in nmap-7.991/ncat/config.log
 }}}

 (in addition, there are a number of warnings concerning type conversions,
 which however should not be unique this particular target, i.e., Snow
 Leopard / compiled with clang 11)

 <EOT>

-- 
Ticket URL: <https://trac.macports.org/ticket/74382>
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