[Bug target/104183] New: gcc6 error with building icu for ppc64

[Bug target/104183] New: gcc6 error with building icu for ppc64

[vital.had at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104183

            Bug ID: 104183
           Summary: gcc6 error with building icu for ppc64
           Product: gcc
           Version: 6.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vital.had at gmail dot com
                CC: iains at gcc dot gnu.org
  Target Milestone: ---
            Target: powerpc64-apple-darwin9.8.0

Created attachment 52266
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52266&action=edit
ii files for errors

Build fails with the following:

ld: duplicate symbol
icu_67::number::NumberFormatterSettings<icu_67::number::UnlocalizedNumberFormatter>::copyErrorTo(UErrorCode&)
const in number_skeletons.o and number_fluent.o
collect2: error: ld returned 1 exit status
make[1]: *** [../lib/libicui18n.67.1.dylib] Error 1
make: *** [all-recursive] Error 2

Commands producing the faulty objects:

/opt/local/bin/g++-mp-6 -m64 -O2 -DU_ATTRIBUTE_DEPRECATED=
-DU_I18N_IMPLEMENTATION -DU_HAVE_STRTOD_L=1 -DU_HAVE_XLOCALE_H=1 -I.
-I../common -O2 -W -Wall -pedantic -Wpointer-arith -Wwrite-strings
-Wno-long-long -std=c++11 -fvisibility=hidden -fno-common -c -dynamic -MMD -MT
"number_skeletons.d number_skeletons.o number_skeletons.ao" -o
number_skeletons.o number_skeletons.cpp

/opt/local/bin/g++-mp-6 -m64 -O2 -DU_ATTRIBUTE_DEPRECATED=
-DU_I18N_IMPLEMENTATION -DU_HAVE_STRTOD_L=1 -DU_HAVE_XLOCALE_H=1 -I.
-I../common -O2 -W -Wall -pedantic -Wpointer-arith -Wwrite-strings
-Wno-long-long -std=c++11 -fvisibility=hidden -fno-common -c -dynamic -MMD -MT
"number_fluent.d number_fluent.o number_fluent.ao" -o number_fluent.o
number_fluent.cpp

P. S. Error unrelated to Macports, I have redone the build outside with cleared
path, and it fails identically. ii files in attachment are from the build
outside of Macports.

[Bug target/104183] gcc6 error with building icu for ppc64

[iains at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104183

Iain Sandoe <iains at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |WONTFIX
           Keywords|                            |rejects-valid
   Last reconfirmed|                            |2022-1-22

--- Comment #1 from Iain Sandoe <iains at gcc dot gnu.org> ---
Yes, I can repeat this, it is quite possible that there are several/many C++11
bugs on this branch, however GCC-6 branch has been closed for some time now (so
we cannot update it here).

If you can determine which patch(es) fixed this on the 7 branch then perhaps
you could back port them locally for the macports GCC-6.5 branch.