2.3.2 Die Lösung ist das Including von "Rules.make"

Die Lösung fand ich im Makefile von minix

Darin steht der wichtige für den Kernel 2.4 noch typische Befehl:

include $(TOPDIR)/Rules.make

Damit erweiterte ich das Makefile zu dieser Form (also auch ein clean-Befehl wurde eingebaut):

ifneq ($(KERNELRELEASE),)
obj-m       := hello-4.o

include $(TOPDIR)/Rules.make

else
KDIR        := /home/andreas/Development/COBRA_rot/uClinux/uClinux-dist-20040218-cobra-20040324/
PWD         := $(shell pwd)

CLEAN_FILES = \
        hello-4.o hello-4.ko hello-4.mod.o hello-4.mod.c

default:
        $(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules

clean:
        rm -f $(CLEAN_FILES)

endif

Damit ergab sich:

andreas@gericom:~/Development/driver> make clean
rm -f hello-4.o hello-4.ko hello-4.mod.o hello-4.mod.c
andreas@gericom:~/Development/driver> make
make -C /home/andreas/Development/COBRA_rot/uClinux/uClinux-dist-20040218-cobra-20040324/
SUBDIRS=/home/andreas/Development/driver modules
make[1]: Entering directory `/home/andreas/Development/COBRA_rot/uClinux/uClinux-dist-20040218-cobra-20040324'
. linux-2.4.x/.config; if [ "$CONFIG_MODULES" = "y" ]; then \
        [ -d linux-2.4.x/modules ] || mkdir linux-2.4.x/modules; \
        make ARCH=m68knommu CROSS_COMPILE=m68k-elf- -C linux-2.4.x modules; \
fi
make[2]: Entering directory `/home/andreas/Development/COBRA_rot/uClinux/uClinux-dist-20040218-cobra-20040324/linux-2.4.x'
make -C  /home/andreas/Development/driver CFLAGS="-fno-builtin -nostdinc -D__KERNEL__
-I/home/andreas/Development/COBRA_rot/uClinux/uClinux-dist-20040218-cobra-20040324/linux-2.4.x/include
 -Wall -Wstrict-prototypes -Wno-trigraphs -O1 -g -fno-strict-aliasing -fno-common
-I/usr/local/lib/gcc-lib/m68k-elf/2.95.3/./include -pipe -DNO_MM -DNO_FPU -m5307 -Wa,-S -Wa,-m5307
-D__ELF__ -DMAGIC_ROM_PTR -DUTS_SYSNAME=\"uClinux\" -D__linux__ -O1 -DMODULE" MAKING_MODULES=1 modules
make[3]: Entering directory `/home/andreas/Development/driver'
m68k-elf-gcc -fno-builtin -nostdinc -D__KERNEL__
-I/home/andreas/Development/COBRA_rot/uClinux/uClinux-dist-20040218-cobra-20040324/linux-2.4.x/include
 -Wall -Wstrict-prototypes -Wno-trigraphs -O1 -g -fno-strict-aliasing -fno-common
-I/usr/local/lib/gcc-lib/m68k-elf/2.95.3/./include -pipe -DNO_MM -DNO_FPU -m5307 -Wa,-S -Wa,-m5307
-D__ELF__ -DMAGIC_ROM_PTR -DUTS_SYSNAME="uClinux" -D__linux__ -O1 -DMODULE  -nostdinc -iwithprefix
include -DKBUILD_BASENAME=hello_4  -c -o hello-4.o hello-4.c
make[3]: Leaving directory `/home/andreas/Development/driver'
make[2]: Leaving directory `/home/andreas/Development/COBRA_rot/uClinux/uClinux-dist-20040218-cobra-20040324/linux-2.4.x'
make[1]: Leaving directory `/home/andreas/Development/COBRA_rot/uClinux/uClinux-dist-20040218-cobra-20040324'
andreas@gericom:~/Development/driver> ls
hello-3.c      hello-3.o                            Makefile              qadc-1_0.c   V_1_4
hello-3.c~     hello-4.c                            Makefile~             qadc-1_0.c~
hello-3.ko     hello-4.c~                           myreadme-driver.txt   V_1_0
hello-3.mod.c  hello-4.o                            myreadme-driver.txt~  V_1_2
hello-3.mod.o  Linux-Modul-Programming.kateproject  myreadme.txt~         V_1_3
andreas@gericom:~/Development/driver> pwd
/home/andreas/Development/driver
andreas@gericom:~/Development/driver>