m-a error complete

cat /var/cache/modass/ipw3945-source.buildlog.2.6.18-2-686.1164142989
dpatch  deapply-all
rm -rf patch-stamp patch-stampT debian/patched
dh_testdir
#dh_testroot
# Cleaning package
/usr/bin/make clean
make[1]: Entering directory `/usr/src/modules/ipw3945'
rm -f *.{mod.c,mod,o,ko,rej,orig} .*.{stamp,flags,cmd} .lst *.lst *~
rm -rf /usr/src/modules/ipw3945/tmp /usr/src/modules/ipw3945/.tmp_versions
for file in *.{c,h}; do \
                sed -i -e "s:\ *$::g" -e "s:\t*$::g" $file; \
        done
make[1]: Leaving directory `/usr/src/modules/ipw3945'
dh_clean
/usr/bin/make  -f debian/rules clean
make[1]: Entering directory `/usr/src/modules/ipw3945'
dpatch  deapply-all
rm -rf patch-stamp patch-stampT debian/patched
dh_testdir
#dh_testroot
# Cleaning package
/usr/bin/make clean
make[2]: Entering directory `/usr/src/modules/ipw3945'
rm -f *.{mod.c,mod,o,ko,rej,orig} .*.{stamp,flags,cmd} .lst *.lst *~
rm -rf /usr/src/modules/ipw3945/tmp /usr/src/modules/ipw3945/.tmp_versions
for file in *.{c,h}; do \
                sed -i -e "s:\ *$::g" -e "s:\t*$::g" $file; \
        done
make[2]: Leaving directory `/usr/src/modules/ipw3945'
dh_clean
make[1]: Leaving directory `/usr/src/modules/ipw3945'
 debian/rules KVERS=2.6.18-2-686 KSRC=/lib/modules/2.6.18-2-686/build KDREV=2.6.18-5 kdist_image
/usr/bin/make  -f debian/rules kdist_clean kdist_config binary-modules
make[1]: Entering directory `/usr/src/modules/ipw3945'
dpatch  deapply-all
rm -rf patch-stamp patch-stampT debian/patched
dh_testdir
#dh_testroot
# Cleaning package
/usr/bin/make clean
make[2]: Entering directory `/usr/src/modules/ipw3945'
rm -f *.{mod.c,mod,o,ko,rej,orig} .*.{stamp,flags,cmd} .lst *.lst *~
rm -rf /usr/src/modules/ipw3945/tmp /usr/src/modules/ipw3945/.tmp_versions
for file in *.{c,h}; do \
                sed -i -e "s:\ *$::g" -e "s:\t*$::g" $file; \
        done
make[2]: Leaving directory `/usr/src/modules/ipw3945'
dh_clean
/usr/bin/make -w -f debian/rules clean
make[2]: Entering directory `/usr/src/modules/ipw3945'
dpatch  deapply-all
rm -rf patch-stamp patch-stampT debian/patched
dh_testdir
#dh_testroot
# Cleaning package
/usr/bin/make clean
make[3]: Entering directory `/usr/src/modules/ipw3945'
rm -f *.{mod.c,mod,o,ko,rej,orig} .*.{stamp,flags,cmd} .lst *.lst *~
rm -rf /usr/src/modules/ipw3945/tmp /usr/src/modules/ipw3945/.tmp_versions
for file in *.{c,h}; do \
                sed -i -e "s:\ *$::g" -e "s:\t*$::g" $file; \
        done
make[3]: Leaving directory `/usr/src/modules/ipw3945'
dh_clean
make[2]: Leaving directory `/usr/src/modules/ipw3945'
make[1]: Nothing to be done for `kdist_config'.
for templ in ; do \
    cp $templ `echo $templ | sed -e 's/_KVERS_/2.6.18-2-686/g'` ; \
  done
for templ in `ls debian/*.modules.in` ; do \
    test -e ${templ%.modules.in}.backup || cp ${templ%.modules.in} ${templ%.modules.in}.backup 2>/dev/null || true; \
    sed -e 's/##KVERS##/2.6.18-2-686/g ;s/#KVERS#/2.6.18-2-686/g ; s/_KVERS_/2.6.18-2-686/g ; s/##KDREV##/2.6.18-5/g ; s/#KDREV#/2.6.18-5/g ; s/_KDREV_/2.6.18-5/g  ' < $templ > ${templ%.modules.in}; \
  done
dh_testroot
dh_clean -k
# Build the module
/usr/bin/make modules KSRC=/lib/modules/2.6.18-2-686/build KVER=2.6.18-2-686
make[2]: Entering directory `/usr/src/modules/ipw3945'
/usr/bin/make -C /lib/modules/2.6.18-2-686/build M=/usr/src/modules/ipw3945  modules
make[3]: Entering directory `/usr/src/linux-headers-2.6.18-2-686'
Makefile:266: /usr/src/linux-headers-2.6.18-2-686/scripts/Kbuild.include: No such file or directory
/bin/sh: line 0: [: -lt: unary operator expected
make[3]: *** No rule to make target `/usr/src/linux-headers-2.6.18-2-686/scripts/Kbuild.include'.  Stop.
make[3]: Leaving directory `/usr/src/linux-headers-2.6.18-2-686'
make[2]: *** [modules] Error 2
make[2]: Leaving directory `/usr/src/modules/ipw3945'
make[1]: *** [binary-modules] Error 2
make[1]: Leaving directory `/usr/src/modules/ipw3945'
make: *** [kdist_build] Error 2