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@ -5,7 +5,7 @@ override MAKEFLAGS += -rR
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# Change as needed.
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override KERNEL := kernel.elf
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# Convenience macro to reliably declare overridable command variables.
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# Convenience macro to reliably declare user overridable variables.
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define DEFAULT_VAR =
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ifeq ($(origin $1),default)
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override $(1) := $(2)
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@ -24,16 +24,16 @@ $(eval $(call DEFAULT_VAR,CC,cc))
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$(eval $(call DEFAULT_VAR,LD,ld))
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# User controllable CFLAGS.
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CFLAGS ?= -g -O2 -pipe -Wall -Wextra
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$(eval $(call DEFAULT_VAR,CFLAGS,-g -O2 -pipe -Wall -Wextra))
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# User controllable preprocessor flags. We set none by default.
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CPPFLAGS ?=
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$(eval $(call DEFAULT_VAR,CPPFLAGS,))
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# User controllable nasm flags.
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NASMFLAGS ?= -F dwarf -g
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$(eval $(call DEFAULT_VAR,NASMFLAGS,-F dwarf -g))
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# User controllable linker flags. We set none by default.
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LDFLAGS ?=
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$(eval $(call DEFAULT_VAR,LDFLAGS,))
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# Internal C flags that should not be changed by the user.
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override CFLAGS += \
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