orospakr@orospakr-laptop:~/code/others/iwlwifi$ make
Makefile:11: 
Makefile:12: WARNING: $SHELL not set to bash.
Makefile:13: If you experience build errors, try
Makefile:14: 'make SHELL=/bin/bash'.
Makefile:15: 
Checking kernel compatibility in:
        /lib/modules/2.6.22-6-generic/source
 * Kernel supports required features for 'tip' version.
Building compatibility version in 'compatible/' directory:
Copying compatible/ from origin/...done
make -C /lib/modules/2.6.22-6-generic/source O=/lib/modules/2.6.22-6-generic/build M=/home/orospakr/code/others/iwlwifi/compatible/ modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.22-6-generic'
  CC [M]  /home/orospakr/code/others/iwlwifi/compatible/base-3945.o
  CC [M]  /home/orospakr/code/others/iwlwifi/compatible/iwl-3945.o
  CC [M]  /home/orospakr/code/others/iwlwifi/compatible/iwl-3945-rs.o
/home/orospakr/code/others/iwlwifi/compatible/iwl-3945-rs.c:43:44: error: ../net/mac80211/ieee80211_rate.h: No such file or directory
/home/orospakr/code/others/iwlwifi/compatible/iwl-3945-rs.c:336: warning: ‘struct sta_info’ declared inside parameter list
/home/orospakr/code/others/iwlwifi/compatible/iwl-3945-rs.c:336: warning: its scope is only this definition or declaration, which is probably not what you want
/home/orospakr/code/others/iwlwifi/compatible/iwl-3945-rs.c:336: warning: ‘struct ieee80211_local’ declared inside parameter list