[MacPorts] #54410: util-linux @2.29.2 fails to build on Snow Leopard, Mac OS X 10.6.8, (cxx_stdlib = libc++) because of "Undefined symbols for architecture x86_64"

[MacPorts]

#54410: util-linux @2.29.2 fails to build on Snow Leopard, Mac OS X 10.6.8,
(cxx_stdlib = libc++) because of "Undefined symbols for architecture
x86_64"
-------------------------+-------------------------
  Reporter:  ballapete   |      Owner:
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.4.1
Resolution:              |   Keywords:  snowleopard
      Port:  util-linux  |
-------------------------+-------------------------

Comment (by kencu):

 I added it to the snowleopardfixes library, and then adding this bit to
 the portfile:
 {{{
 platform darwin 10 {
         depends_lib-append          port:snowleopardfixes
         configure.ldflags-append   -lsnowleopardfixes
 }
 }}}

 and the port built:
 {{{
 $ sudo port -v installed util-linux
 The following ports are currently installed:
   util-linux @2.29.2_0 (active) platform='darwin 10' archs='x86_64'
 date='2017-07-02T11:53:21-0700'
 }}}

 IF you decide to use the library, a Portfile to install it is here:
 <https://github.com/kencu/SnowLeopardPorts/tree/master/sysutils/snowleopardfixes>

 So - this is a workaround - pretty easy to use - but the proper fix would
 be to report this to the devs so they can add a check for it in autotools.
 sometimes they do. Very often they do not (actually I have never seen them
 do it once, come to think of it). The next option is to do it with a
 patch.

 I like the library because it works so easily. It may not turn out to be
 100% perfect in every situation, though. I need to figure out a better way
 to use the header more selectively. You don't always need the header (as
 in this port, which didn't like it), but I'd be happier if I could figure
 out a way to include the function definitions only when needed.

--
Ticket URL: <https://trac.macports.org/ticket/54410#comment:2>
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