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openwrt-xburst/target/linux/generic-2.6/patches/004-extra_optimization.patch
juhosg 8b2e13cf02 [kernel] refresh generic 2.6.21 patches
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11185 3c298f89-4303-0410-b956-a3cf2f4a3e73
2008-05-18 20:23:20 +00:00

15 lines
523 B
Diff

Index: linux-2.6.21.7/Makefile
===================================================================
--- linux-2.6.21.7.orig/Makefile
+++ linux-2.6.21.7/Makefile
@@ -507,6 +507,9 @@ CFLAGS += $(call cc-option, -fn
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
CHECKFLAGS += $(NOSTDINC_FLAGS)
+# improve gcc optimization
+CFLAGS += $(call cc-option,-funit-at-a-time,)
+
# warn about C99 declaration after statement
CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)