[Bug go/90614] New: gcc-9.1.0/libgo/go/syscall/wait.c:54:22: error: unused parameter ‘w’ [-Werror=unused-parameter] Continued (uint32_t *w)

[mfe at live dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90614

            Bug ID: 90614
           Summary: gcc-9.1.0/libgo/go/syscall/wait.c:54:22: error: unused
                    parameter ‘w’ [-Werror=unused-parameter] Continued
                    (uint32_t *w)
           Product: gcc
           Version: 9.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: go
          Assignee: ian at airs dot com
          Reporter: mfe at live dot de
                CC: cmang at google dot com
  Target Milestone: ---

Created attachment 46405
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46405&action=edit
config.log libgo

the exact version of GCC:
gcc-9.1.0

the system type:
NetgearReadyNAS Duo
(http://wiki.dietpc.org/index.php/DIET-PC_on_SPARC_ReadyNAS)

the options given when GCC was configured/built:
../gcc-9.1.0/configure CC=/opt/gcc-7.1/bin/gcc CXX=/opt/gcc-7.1/bin/g++
--enable-languages=c,c++,go --prefix=/opt/gcc-9.1 --with-cpu=v7
--with-mpc=/usr/local --with-mpfr=/usr/local --with-gmp=/usr/local
--with-isl=/usr/local/ --disable-libstdcxx-pch --disable-linux-futex
--disable-libsanitizer --enable-__cxa_atexit --enable-nls --enable-clocale=gnu
--enable-debug --disable-doc --disable-libcilkrts --disable-libitm


the complete command line that triggers the bug;
/usr/local/bin/make

the compiler output (error messages, warnings, etc.);
[...]
/bin/sh ./libtool  --tag=CC   --mode=compile
/backup/fes-readynasduo/gcc-9.1.0-compiled/./gcc/xgcc
-B/backup/fes-readynasduo/gcc-9.1.0-compiled/./gcc/
-B/opt/gcc-9.1/sparc-unknown-linux-gnu/bin/
-B/opt/gcc-9.1/sparc-unknown-linux-gnu/lib/ -isystem
/opt/gcc-9.1/sparc-unknown-linux-gnu/include -isystem
/opt/gcc-9.1/sparc-unknown-linux-gnu/sys-include   -fno-checking
-DHAVE_CONFIG_H -I. -I../../../gcc-9.1.0/libgo  -I
../../../gcc-9.1.0/libgo/runtime -I../../../gcc-9.1.0/libgo/../libffi/include
-I../libffi/include -pthread -L../libatomic/.libs  -fexceptions
-fnon-call-exceptions  -Wall -Wextra -Wwrite-strings -Wcast-qual -Werror  
-D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I
../../../gcc-9.1.0/libgo/../libgcc -I ../../../gcc-9.1.0/libgo/../libbacktrace
-I ../../gcc/include -g -O2 -c -o syscall/wait.lo
../../../gcc-9.1.0/libgo/go/syscall/wait.c                                 
libtool: compile:  /backup/fes-readynasduo/gcc-9.1.0-compiled/./gcc/xgcc
-B/backup/fes-readynasduo/gcc-9.1.0-compiled/./gcc/
-B/opt/gcc-9.1/sparc-unknown-linux-gnu/bin/
-B/opt/gcc-9.1/sparc-unknown-linux-gnu/lib/ -isystem
/opt/gcc-9.1/sparc-unknown-linux-gnu/include -isystem
/opt/gcc-9.1/sparc-unknown-linux-gnu/sys-include -fno-checking -DHAVE_CONFIG_H
-I. -I../../../gcc-9.1.0/libgo -I ../../../gcc-9.1.0/libgo/runtime
-I../../../gcc-9.1.0/libgo/../libffi/include -I../libffi/include -pthread
-L../libatomic/.libs -fexceptions -fnon-call-exceptions -Wall -Wextra
-Wwrite-strings -Wcast-qual -Werror -D_GNU_SOURCE -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64 -I ../../../gcc-9.1.0/libgo/../libgcc -I
../../../gcc-9.1.0/libgo/../libbacktrace -I ../../gcc/include -g -O2 -c
../../../gcc-9.1.0/libgo/go/syscall/wait.c  -fPIC -DPIC -o syscall/.libs/wait.o
                                               
../../../gcc-9.1.0/libgo/go/syscall/wait.c: In function ‘Continued’:           
                                                                               
                    ../../../gcc-9.1.0/libgo/go/syscall/wait.c:54:22: error:
unused parameter ‘w’ [-Werror=unused-parameter]                                
                                              54 | Continued (uint32_t *w)     
                                                                               
                                                                     |         
  ~~~~~~~~~~^                                                                  
                                                                               
   cc1: all warnings being treated as errors                                   
                                                                               
                       make[4]: *** [Makefile:2888: syscall/wait.lo] Error 1   
                                                                               
                                           make[4]: Leaving directory
'/c/backup/fes-readynasduo/gcc-9.1.0-compiled/sparc-unknown-linux-gnu/libgo'   
                                                                        
make[3]: *** [Makefile:2235: all-recursive] Error 1                            
                                                                               
                    make[3]: Leaving directory
'/c/backup/fes-readynasduo/gcc-9.1.0-compiled/sparc-unknown-linux-gnu/libgo'   
                                                                        
make[2]: *** [Makefile:1160: all] Error 2                                      
                                                                               
                    make[2]: Leaving directory
'/c/backup/fes-readynasduo/gcc-9.1.0-compiled/sparc-unknown-linux-gnu/libgo'   
                                                                        
make[1]: *** [Makefile:20115: all-target-libgo] Error 2                        
                                                                               
                    make[1]: Leaving directory
'/c/backup/fes-readynasduo/gcc-9.1.0-compiled'                                 
                                                                         make:
*** [Makefile:993: all] Error 2