[Bug ld/32372] New: bfd fails to build with GCC trunk (defaults to -std=gnu23) (bfd/elf64-ppc.c:4667:20: error: incompatible types when returning type ‘_Bool’ but ‘struct plt_entry **’ was expected)

[sam at gentoo dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=32372

            Bug ID: 32372
           Summary: bfd fails to build with GCC trunk (defaults to
                    -std=gnu23) (bfd/elf64-ppc.c:4667:20: error:
                    incompatible types when returning type ‘_Bool’ but
                    ‘struct plt_entry **’ was expected)
           Product: binutils
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: sam at gentoo dot org
  Target Milestone: ---

GCC trunk now defaults to -std=gnu23:
```
/bin/sh ./libtool  --tag=CC   --mode=compile x86_64-pc-linux-gnu-gcc
-DHAVE_CONFIG_H -I.
-I/var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd 
-DBINDIR='"/usr/x86_64-pc-linux-gnu/binutils-bin/9999"'
-DLIBDIR='"/usr/lib64/binutils/x86_64-pc-linux-gnu/9999"' -I.
-I/var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd
-I/var/tmp/portage/sys-devel/binutils-9999
/work/binutils/bfd/../include  -DHAVE_all_vecs   -W -Wall -Wstrict-prototypes
-Wmissing-prototypes -Wshadow -Wstack-usage=262144   -O3 -march=native
-mtls-dialect=gnu2 -pipe -fcf-protection=none -fdiagnostics-color=always
-fdiagnostics-urls=never -frecord-gcc-switches -fdiagnostics-details
-Warray-bounds -Wstrict-aliasing -Wfree-nonheap-object -Wuninitialized
-Wmaybe-un
initialized -Wreturn-type -Werror=lto-type-mismatch -Werror=strict-aliasing
-Werror=odr -Warray-bounds -fdiagnostics-details -Wstringop-overread
-Wstringop-overflow -Wstringop-truncation -Wbuiltin-declaration-mismatch -ggdb3
  -fprofile-generate -flto=jobserver -ffat-lto-objects -c -o elf64-ppc.lo
/var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/elf64-ppc.c  
libtool: compile:  x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I.
-I/var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd
-DBINDIR=\"/usr/x86_64-pc-linux-gnu/binutils-bin/9999\"
-DLIBDIR=\"/usr/lib64/binutils/x86_64-pc-linux-gnu/9999\" -I.
-I/var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd
-I/var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/../inclu
de -DHAVE_all_vecs -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wshadow
-Wstack-usage=262144 -O3 -march=native -mtls-dialect=gnu2 -pipe
-fcf-protection=none -fdiagnostics-color=always -fdiagnostics-urls=never
-frecord-gcc-switches -fdiagnostics-details -Warray-bounds -Wstrict-aliasing
-Wfree-nonheap-object -Wuninitialized -Wmaybe-uninitialized -Wreturn-type
-Werro
r=lto-type-mismatch -Werror=strict-aliasing -Werror=odr -Warray-bounds
-fdiagnostics-details -Wstringop-overread -Wstringop-overflow
-Wstringop-truncation -Wbuiltin-declaration-mismatch -ggdb3 -fprofile-generate
-flto=jobserver -ffat-lto-objects -c
/var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/elf64-ppc.c  -fPIC
-DPIC -o .libs/elf64-ppc.o                  
/var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/elf64-ppc.c: In
function ‘update_local_sym_info’:                                              
                              
/var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/elf64-ppc.c:4667:20:
error: incompatible types when returning type ‘_Bool’ but ‘struct plt_entry **’
was expected
 4667 |             return false;                                              
                                                                               
                                |                    ^~~~~
make[4]: *** [Makefile:1773: elf64-ppc.lo] Error 1
```

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