powerpc: remove old GCC version checks

# to stdout and these checks are run even on install targets.

TOUT	:= .tmp_gas_check

# Check gcc and binutils versions:

# - gcc-3.4 and binutils-2.14 are a fatal combination

# - Require gcc 4.0 or above on 64-bit

# - gcc-4.2.0 has issues compiling modules on 64-bit

# Check toolchain versions:

# - gcc-4.6 is the minimum kernel-wide version so nothing required.

checkbin:

	@if test "$(cc-name)" != "clang" \

	    && test "$(cc-version)" = "0304" ; then \

		if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \

			echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \

			echo 'correctly with gcc-3.4 and your version of binutils.'; \

			echo '*** Please upgrade your binutils or downgrade your gcc'; \

			false; \

		fi ; \

	fi

	@if test "$(cc-name)" != "clang" \

	    && test "$(cc-version)" -lt "0400" \

	    && test "x${CONFIG_PPC64}" = "xy" ; then \

                echo -n "Sorry, GCC v4.0 or above is required to build " ; \

                echo "the 64-bit powerpc kernel." ; \

                false ; \

        fi

	@if test "$(cc-name)" != "clang" \

	    && test "$(cc-fullversion)" = "040200" \

	    && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \

		echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \

		echo 'kernel with modules enabled.' ; \

		echo -n '*** Please use a different GCC version or ' ; \

		echo 'disable kernel modules' ; \

		false ; \

	fi

	@if test "x${CONFIG_CPU_LITTLE_ENDIAN}" = "xy" \

	    && $(LD) --version | head -1 | grep ' 2\.24$$' >/dev/null ; then \

		echo -n '*** binutils 2.24 miscompiles weak symbols ' ; \