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-rw-r--r--arch/powerpc/Makefile13
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 6524c6e..68455dd 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -234,10 +234,11 @@ archprepare: checkbin
# Use the file '.tmp_gas_check' for binutils tests, as gas won't output
# to stdout and these checks are run even on install targets.
TOUT := .tmp_gas_check
-# Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec
-# instructions.
-# gcc-3.4 and binutils-2.14 are a fatal combination.
+# 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
checkbin:
@if test "$(call cc-version)" = "0304" ; then \
if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \
@@ -247,6 +248,12 @@ checkbin:
false; \
fi ; \
fi
+ @if test "$(call cc-version)" -lt "0400" \
+ && test "x${CONFIG_PPC64}" = "xy" ; then \
+ echo -n "Sorry, GCC v4.0 or above is required to build " ; \
+ echo "the 64-bit powerpc kernel." ; \
+ false ; \
+ fi
@if test "$(call cc-fullversion)" = "040200" \
&& test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \
echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \
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