[MacPorts] #65867: boost176 @1.76.0_5 does not build on PPC Tiger, Mac OS X 10.4.11, because ld: -rpath can only be used when targeting Mac OS X 10.5 or later

[MacPorts]

#65867: boost176 @1.76.0_5 does not build on PPC Tiger, Mac OS X 10.4.11, because
ld: -rpath can only be used when targeting Mac OS X 10.5 or later
------------------------+-----------------------
  Reporter:  ballapete  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.7.2
Resolution:             |   Keywords:  tiger ppc
      Port:  boost176   |
------------------------+-----------------------

Comment (by ballapete):

 The cause seems to be `boost_1_76_0/user-config.jam`:

 {{{
 using darwin : : /opt/local/bin/g++-mp-7 : <asmflags>"-Os -arch ppc"
 <cflags>"-Os -arch ppc" <cxxflags>"-Os -std=gnu++11 -D__DARWIN_UNIX03=1
 -D_GLIBCXX_USE_CXX11_ABI=0 -arch ppc "  <linkflags>"-L/opt/local/lib
 -Wl,-headerpad_max_install_names -Wl,-rpath,/opt/local/lib/libgcc " : ;
 }}}

 I'll remove, after a `port selfupdate`, the last expression and see
 whether it works to build `boost176`.

-- 
Ticket URL: <https://trac.macports.org/ticket/65867#comment:2>
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