[MacPorts] #59694: libgcc7 fails to compile (ld: illegal text-relocation to ___cpu_indicator_init)

[MacPorts]

#59694: libgcc7 fails to compile (ld: illegal text-relocation to
___cpu_indicator_init)
-----------------------+--------------------
  Reporter:  rmottola  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:            |
-----------------------+--------------------

Comment (by kencu):

 Here's what I did, Riccardo. Not sure if every bit of this is needed. I
 just did it all and gcc7/libgcc7 built. Now to see if just doing some
 subset of this is sufficient to fix it.
 {{{
 $ git diff --no-index
 /opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/lang/gcc7
 ./
 diff --git
 a/opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/lang/gcc7/Portfile
 b/./Portfile
 index 27bf288..268b8de 100644
 ---
 a/opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/lang/gcc7/Portfile
 +++ b/./Portfile
 @@ -94,10 +94,6 @@ configure.args      --enable-
 languages=c,c++,objc,obj-c++,lto,fortran \
                      --disable-multilib \
                      --enable-lto \
                      --enable-libstdcxx-time \
 -                    --with-build-config=bootstrap-debug \
 -                    --with-as=${prefix}/bin/as \
 -                    --with-ld=${prefix}/bin/ld \
 -                    --with-ar=${prefix}/bin/ar \
                      --with-bugurl=https://trac.macports.org/newticket

  # see https://lists.macports.org/pipermail/macports-
 dev/2017-August/036209.html
 @@ -105,18 +101,6 @@ configure.args      --enable-
 languages=c,c++,objc,obj-c++,lto,fortran \
  # it only determines how std::call_once works
  configure.args-append \
                      --disable-tls
 -
 -configure.env-append \
 -                    AR_FOR_TARGET=${prefix}/bin/ar \
 -                    AS_FOR_TARGET=${prefix}/bin/as \
 -                    LD_FOR_TARGET=${prefix}/bin/ld \
 -                    NM_FOR_TARGET=${prefix}/bin/nm \
 -                    OBJDUMP_FOR_TARGET=${prefix}/bin/objdump \
 -                    RANLIB_FOR_TARGET=${prefix}/bin/ranlib \
 -                    STRIP_FOR_TARGET=${prefix}/bin/strip \
 -                    OTOOL=${prefix}/bin/otool \
 -                    OTOOL64=${prefix}/bin/otool
 -
  pre-configure {
      configure.args-append --with-pkgversion="MacPorts ${name}
 ${version}_${revision}${portvariants}"

 @@ -359,12 +343,21 @@ configure.env-append \
  build.env-append \
      "CPP=${configure.cc} -E" \
      "CXXCPP=${configure.cxx} -E"
 -
 -# gcc default optflags are required to build gcc7 with older compilers
 -# see https://trac.macports.org/ticket/59706
 -# we probably also want to clear out the rest of the configure.XYZ flags
 +
  configure.optflags

 +if {${os.major} < 10} {
 +    pre-configure {
 +        xinstall -d ${workpath}/tools
 +        set tools {nm as ar otool ranlib lipo libtool segedit strip size
 strings ld ld64}
 +         foreach tool $tools {
 +             ln -s /usr/bin/$tool ${workpath}/tools/$tool
 +         }
 +    }
 +    configure.env-append PATH=${workpath}/tools:${env(PATH)}
 +    build.env-append     PATH=${workpath}/tools:${env(PATH)}
 +}
 +
  configure.cc-append [get_canonical_archflags]
  configure.cc_archflags
  configure.cxx-append ${configure.cxx_archflags}
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/59694#comment:9>
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