# Linux 2.6 defines some macros on command line
KBUILD_DEFINES = -D"KBUILD_STR(s)=\#s" \
                 -D"KBUILD_BASENAME=KBUILD_STR($(patsubst %.o, %, $(notdir $@)))" \
                 -D"KBUILD_MODNAME=KBUILD_STR($(patsubst %.o, %, $@))"

# for some reasons, Linux 2.6 does not include autoconf.h in the implementation
# files but does so on the command line
KBUILD_CPPFLAGS = -include linux/autoconf.h

# includes
MY_DDE_INCDIR = $(OBJ_BASE)/include/$(ARCH)/l4/dde/linux26 \
                $(OBJ_BASE)/include/l4/dde/linux26

MY_LINUX26_INCDIR = $(OBJ_BASE)/include/$(ARCH)/l4/dde/linux26/linux-headers \
                    $(OBJ_BASE)/include/l4/dde/linux26/linux-headers

# stolen from fiasco/src/Makeconf, checks whether a compiler supports a certain
# parameter
CHECKCC     = $(shell if $(CC)  $(1) -S -o /dev/null -xc   /dev/null \
              > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)


# arch-specific stuff
ifeq ($(ARCH), x86)
MY_DDE_INCDIR += $(OBJ_BASE)/include/l4/dde/linux26/linux-headers/asm-i386/mach-default
endif

PRIVATE_INCDIR += $(MY_DDE_INCDIR) $(MY_LINUX26_INCDIR)

DEFINES += -D__KERNEL__ -DDDE_LINUX $(KBUILD_DEFINES)
CPPFLAGS += $(KBUILD_CPPFLAGS)
CFLAGS += -ffunction-sections
ASFLAGS += -D__ASSEMBLY__

WARNINGS  += -Wall -Wstrict-prototypes -fno-strict-aliasing
WARNINGS  += $(call CHECKCC, -Wno-unused,)
WARNINGS  += $(call CHECKCC, -Wno-pointer-sign,)
