[MacPorts] #59915: doxygen: error: use of undeclared identifier 'strnlen'

[MacPorts]

#59915: doxygen: error: use of undeclared identifier 'strnlen'
------------------------+---------------------
 Reporter:  ryandesign  |      Owner:  (none)
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.6.2
 Keywords:              |       Port:  doxygen
------------------------+---------------------
 [https://build.macports.org/builders/ports-10.6_i386-builder/builds/6773/steps
 /install-port/logs/stdio doxygen fails to build on Snow Leopard]:

 {{{
 /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_textproc_doxygen/doxygen/work/doxygen-1.8.17/src/portable.cpp:510:23:
 error: use of undeclared identifier 'strnlen'
   size_t needle_len = strnlen(needle, haystack_len);
                       ^
 }}}

 Using the legacysupport portgroup might help.

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Ticket URL: <https://trac.macports.org/ticket/59915>
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