[Bug target/52495] New: rs6000.c fails to (cross-) build: "implicit declaration of function âASM_WEAKEN_DECLâ"

["amylaar at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52495

             Bug #: 52495
           Summary: rs6000.c fails to (cross-) build: "implicit
                    declaration of function âASM_WEAKEN_DECLâ"
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: amylaar@gcc.gnu.org
              Host: x86_64-unknown-linux-gnu
            Target: powerpc64-linux_altivec, powerpc-eabialtivec,
                    powerpc-eabi, powerpc-eabisimaltivec, powerpc-eabisim,
                    powerpc-eabispe, powerpc-freebsd6, powerpcle-eabi,
                    powerpcle-eabisim, powerpcle-elf,
                    powerpc-linux_paired, powerpc-linux_spe,
                    powerpc-lynxos, powerpc-netb


N.B the target list is incomplete because bugzilla wouldn't let me enter the
full list.

contrib/config-list.mk shows 24 rs6000 configurations as failing for
revision 184927:
log/powerpc64-linux_altivec-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-eabialtivec-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-eabi-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-eabisimaltivec-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-eabisim-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-eabispe-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-freebsd6-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpcle-eabi-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpcle-eabisim-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpcle-elf-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-linux_paired-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-linux_spe-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-lynxos-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-netbsd-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-rtems4.11OPT-enable-threads=yes-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-wrs-vxworksae-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-wrs-vxworks-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/powerpc-xilinx-eabi-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/ppc-elf-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7: error:
implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/rs6000-ibm-aix4.3-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/rs6000-ibm-aix5.1.0-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/rs6000-ibm-aix5.2.0-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/rs6000-ibm-aix5.3.0-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]
log/rs6000-ibm-aix6.0-make.out:../../../gcc/gcc/config/rs6000/rs6000.c:27913:7:
error: implicit declaration of function âASM_WEAKEN_DECLâ
[-Werror=implicit-function-declaration]