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@@ -170,8 +170,10 @@ ifeq ($(strip $(TARGET_ARCH)),cris)
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PICFLAG=-fpic
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endif
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-# use '-Os' optimization if available, else use -O2, allow Config to override
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+# Use '-Os' optimization if available, else use -O2, allow Config to override
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OPTIMIZATION+=$(call check_gcc,-Os,-O2)
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+# Use the gcc 3.4 -funit-at-a-time optimization when available
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+OPTIMIZATION+=$(call check_gcc,-funit-at-a-time,)
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# Add a bunch of extra pedantic annoyingly strict checks
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