[root@tau iwlwifi]# make V=1 KSRC=/usr/src/redhat/BUILD/kernel-2.6.21/linux-2.6.21.i686/ MAC80211_INC=/usr/src/redhat/BUILD/kernel-2.6.21/linux-2.6.21.i686/include/net/
make -C /usr/src/redhat/BUILD/kernel-2.6.21/linux-2.6.21.i686/ O=/usr/src/redhat/BUILD/kernel-2.6.21/linux-2.6.21.i686/ M=/root/iwlwifi/compatible/ modules
make[1]: Entering directory `/usr/src/redhat/BUILD/kernel-2.6.21/linux-2.6.21.i686'
make -C /usr/src/redhat/BUILD/kernel-2.6.21/linux-2.6.21.i686 \
        KBUILD_SRC=/usr/src/redhat/BUILD/kernel-2.6.21/linux-2.6.21.i686 \
        KBUILD_EXTMOD="/root/iwlwifi/compatible/" -f /usr/src/redhat/BUILD/kernel-2.6.21/linux-2.6.21.i686/Makefile modules
test -e include/linux/autoconf.h -a -e include/config/auto.conf || (            \
        echo;                                                           \
        echo "  ERROR: Kernel configuration is invalid.";               \
        echo "         include/linux/autoconf.h or include/config/auto.conf are missing.";      \
        echo "         Run 'make oldconfig && make prepare' on kernel src to fix it.";  \
        echo;                                                           \
        /bin/false)
mkdir -p /root/iwlwifi/compatible//.tmp_versions
rm -f /root/iwlwifi/compatible//.tmp_versions/*

  WARNING: Symbol version dump /usr/src/redhat/BUILD/kernel-2.6.21/linux-2.6.21.i686/Module.symvers
           is missing; modules will have no dependencies and modversions.

make -f /usr/src/redhat/BUILD/kernel-2.6.21/linux-2.6.21.i686/scripts/Makefile.build obj=/root/iwlwifi/compatible
  Building modules, stage 2.
make -f /usr/src/redhat/BUILD/kernel-2.6.21/linux-2.6.21.i686/scripts/Makefile.modpost
  scripts/mod/modpost -m -a -i /usr/src/redhat/BUILD/kernel-2.6.21/linux-2.6.21.i686/Module.symvers -I /root/iwlwifi/compatible//Module.symvers -o /root/iwlwifi/compatible//Module.symvers -w  /root/iwlwifi/compatible/iwl3945.o /root/iwlwifi/compatible/iwl4965.o
/bin/sh: scripts/mod/modpost: No such file or directory