"checkgcc4" is used only for PowerPC.
Move it to arch/powerpc/config.mk.

To make sure gcc is new enough before beginning build,
run "checkgcc4" during "archprepare".

Signed-off-by: Masahiro Yamada <yamad...@jp.panasonic.com>
---

 Makefile               |  9 ---------
 arch/powerpc/config.mk | 11 ++++++++++-
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/Makefile b/Makefile
index 7ed2d97..ea9400d 100644
--- a/Makefile
+++ b/Makefile
@@ -1114,15 +1114,6 @@ SYSTEM_MAP = \
 System.map:    u-boot
                @$(call SYSTEM_MAP,$<) > $@
 
-# GCC 3.x is reported to have problems generating the type of relocation
-# that U-Boot wants.
-# See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
-checkgcc4:
-       @if test $(call cc-version) -lt 0400; then \
-               echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or 
newer'; \
-               false; \
-       fi
-
 checkdtc:
        @if test $(call dtc-version) -lt 0104; then \
                echo '*** Your dtc is too old, please upgrade to dtc 1.4 or 
newer'; \
diff --git a/arch/powerpc/config.mk b/arch/powerpc/config.mk
index ac94b2e..9821068 100644
--- a/arch/powerpc/config.mk
+++ b/arch/powerpc/config.mk
@@ -35,5 +35,14 @@ endif
 
 # Only test once
 ifneq ($(CONFIG_SPL_BUILD),y)
-ALL-y += checkgcc4
+archprepare: checkgcc4
+
+# GCC 3.x is reported to have problems generating the type of relocation
+# that U-Boot wants.
+# See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
+checkgcc4:
+       @if test $(call cc-version) -lt 0400; then \
+               echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or 
newer'; \
+               false; \
+       fi
 endif
-- 
1.8.3.2

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