[MacPorts] #54124: guile @2.2.2 won't build on PPC Leopard, Mac OS X 10.5.8, because is uses non-existing /lib/cpp as C preprocessor

[MacPorts]

#54124: guile @2.2.2 won't build on PPC Leopard, Mac OS X 10.5.8, because is uses
non-existing /lib/cpp as C preprocessor
------------------------+---------------------------------------
  Reporter:  ballapete  |      Owner:
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.4.1
Resolution:             |   Keywords:  tiger leopard snowleopard
      Port:  guile      |
------------------------+---------------------------------------

Comment (by kencu):

 Worked on this a bit tonight. Adding the following block to the Portfile
 did get considerably farther through the guile-2.2.2 build, but still
 errors out in the end. Nonetheless, I think this is progress down the path
 to success:
 {{{

 platform darwin powerpc {
     compiler.whitelist macports-gcc-6
     configure.args-append CPP=${configure.cpp}
     configure.optflags  -O2
     configure.cflags-append -I${prefix}/lib/gcc7/gcc/ppc-apple-
 darwin9/7.2.0/include
 }

 }}}

 ultimately dies with
 {{{
 ranlib: file: .libs/libguile-2.2.a(wctype-h.o) has no symbols
   CCLD     guile
   GEN      guile-procedures.texi
 cat: stdout: Broken pipe
 /bin/sh: line 1: 19360 Done(1)                 cat alist.doc array-
 handle.doc array-map.doc arrays.doc async.doc atomic.doc backtrace.doc
 boolean.doc bitvectors.doc bytevectors.doc chars.doc control.doc
 continuations.doc debug.doc deprecated.doc deprecation.doc dynl.doc
 dynwind.doc eq.doc error.doc eval.doc evalext.doc expand.doc
 extensions.doc fdes-finalizers.doc feature.doc filesys.doc fluids.doc
 foreign.doc fports.doc gc-malloc.doc gc.doc gettext.doc generalized-
 arrays.doc generalized-vectors.doc goops.doc gsubr.doc guardians.doc
 hash.doc hashtab.doc hooks.doc i18n.doc init.doc ioext.doc keywords.doc
 list.doc load.doc macros.doc mallocs.doc memoize.doc modules.doc
 numbers.doc objprop.doc options.doc pairs.doc ports.doc print.doc
 procprop.doc procs.doc promises.doc r6rs-ports.doc random.doc rdelim.doc
 read.doc rw.doc scmsigs.doc script.doc simpos.doc smob.doc sort.doc
 srcprop.doc srfi-1.doc srfi-4.doc srfi-13.doc srfi-14.doc srfi-60.doc
 stackchk.doc stacks.doc stime.doc strings.doc strorder.doc strports.doc
 struct.doc symbols.doc syntax.doc threads.doc throw.doc trees.doc
 unicode.doc uniform.doc values.doc variable.doc vectors.doc version.doc
 vports.doc weak-set.doc weak-table.doc weak-vector.doc dynl.doc posix.doc
 net_db.doc socket.doc regex-posix.doc
      19361 Segmentation fault      | GUILE_AUTO_COMPILE=0 ../meta/build-
 env guild snarf-check-and-output-texi > guile-procedures.texi
 }}}
 but I wonder if this might be improved by changing the optflags from -Os
 to -O2...

--
Ticket URL: <https://trac.macports.org/ticket/54124#comment:20>
MacPorts <https://www.macports.org/>
Ports system for macOS