[MacPorts] #69297: luametatex @2.10.08 does not build on PPC Tiger, Mac OS X 10.4.11, because of "cc1: error: unrecognized command line option "-Wno-unused-result""

[MacPorts]

#69297: luametatex @2.10.08 does not build on PPC Tiger, Mac OS X 10.4.11, because
of "cc1: error: unrecognized command line option "-Wno-unused-result""
-------------------------+-----------------------
  Reporter:  ballapete   |      Owner:  drkp
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.9.1
Resolution:              |   Keywords:  ppc tiger
      Port:  luametatex  |
-------------------------+-----------------------
Changes (by ryandesign):

 * cc: dports@… (removed)
 * status:  new => assigned
 * owner:  (none) => drkp


Comment:

 Its CMakeLists.txt says:

 {{{
 set(CMAKE_C_STANDARD 11)
 }}}

 We could indicate that in the Portfile with:

 {{{
 compiler.c_standard 2011
 }}}

 That would cause MacPorts to select a newer compiler that hopefully
 understands those warning flags so no patch would be needed.

 However, if I understand CMake correctly, that line in CMakeLists.txt is
 only indicating a preference for C11 if it is available, not that it is
 required. Does your patch removing those warning flags allow the port to
 build with GCC 4.2.1? If so, then C11 is clearly not required and your
 patch would be the way to go. In that case, please report the bug to the
 developers of luametatex. They should be testing the compiler for support
 of each warning flag before adding them.

-- 
Ticket URL: <https://trac.macports.org/ticket/69297#comment:2>
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