dapet@DanielsCom:~/ndiswrapper-1.21$ sudo make install
Password:
make -C driver install
make[1]: Går til katalog '/home/dapet/ndiswrapper-1.21/driver'
Can't find kernel build files in /lib/modules/2.6.15-26-386/build;
  give the path to kernel build directory with
  KBUILD=<path> argument to make
make[1]: *** [prereq_check] Fejl 1
make[1]: Forlader katalog '/home/dapet/ndiswrapper-1.21/driver'
make: *** [install] Fejl 2
dapet@DanielsCom:~/ndiswrapper-1.21$ make distclean
make -C driver clean
make[1]: Går til katalog '/home/dapet/ndiswrapper-1.21/driver'
rm -rf ndiswrapper.ko ndiswrapper.o hal.o iw_ndis.o loader.o misc_funcs.o ndis.o ntoskernel.o ntoskernel_io.o pe_linker.o pnp.o proc.o wrapmem.o wrapndis.o wrapper.o divdi3.o usb.o x86_64_stubs.o \
           divdi3.o workqueue.o .*.ko.cmd .*.o.cmd \
           ndiswrapper.mod.[oc] *~ .tmp_versions
make[1]: Forlader katalog '/home/dapet/ndiswrapper-1.21/driver'
make -C utils clean
make[1]: Går til katalog '/home/dapet/ndiswrapper-1.21/utils'
rm -f *~ *.o loadndisdriver
make[1]: Forlader katalog '/home/dapet/ndiswrapper-1.21/utils'
rm -f *~
rm -fr ndiswrapper-1.21 ndiswrapper-1.21.tar.gz patch-stamp
make -C driver distclean
make[1]: Går til katalog '/home/dapet/ndiswrapper-1.21/driver'
rm -rf ndiswrapper.ko ndiswrapper.o hal.o iw_ndis.o loader.o misc_funcs.o ndis.o ntoskernel.o ntoskernel_io.o pe_linker.o pnp.o proc.o wrapmem.o wrapndis.o wrapper.o divdi3.o usb.o x86_64_stubs.o \
           divdi3.o workqueue.o .*.ko.cmd .*.o.cmd \
           ndiswrapper.mod.[oc] *~ .tmp_versions
rm -f *_exports.h .\#* x86_64_stubs.h
make[1]: Forlader katalog '/home/dapet/ndiswrapper-1.21/driver'
make -C utils distclean
make[1]: Går til katalog '/home/dapet/ndiswrapper-1.21/utils'
rm -f *~ *.o loadndisdriver
rm -f .\#*
make[1]: Forlader katalog '/home/dapet/ndiswrapper-1.21/utils'
rm -f .\#*
dapet@DanielsCom:~/ndiswrapper-1.21$ make
make -C driver
make[1]: Går til katalog '/home/dapet/ndiswrapper-1.21/driver'
Can't find kernel build files in /lib/modules/2.6.15-26-386/build;
  give the path to kernel build directory with
  KBUILD=<path> argument to make
make[1]: *** [prereq_check] Fejl 1
make[1]: Forlader katalog '/home/dapet/ndiswrapper-1.21/driver'
make: *** [all] Fejl 2
dapet@DanielsCom:~/ndiswrapper-1.21$