[root@localhost madwifi-0.9.2]# KERNELPATH=/usr/src/linux-2.6.21-rt8-1mdv make
Checking requirements... ok.
Checking kernel configuration... ok.
make -C /usr/src/linux-2.6.21-rt8-1mdv SUBDIRS=/usr/src/madwifi-0.9.2 modules
make[1]: Entering directory `/usr/src/linux-2.6.21-rt8-1mdv'

  WARNING: Symbol version dump /usr/src/linux-2.6.21-rt8-1mdv/Module.symvers
           is missing; modules will have no dependencies and modversions.

gcc: ./kernelversion.c: No such file or directory
gcc: no input files
scripts/Makefile.build:52: kbuild: /usr/src/madwifi-0.9.2/Makefile - Usage of export-objs is obsolete in 2.6. Please fix!
scripts/Makefile.build:64: kbuild: /usr/src/madwifi-0.9.2/Makefile - list-multi :=  is obsolete in 2.6. Please fix!
gcc: ../kernelversion.c: No such file or directory
gcc: no input files
scripts/Makefile.host:118: warning: overriding commands for target `/usr/src/madwifi-0.9.2/ath/uudecode'
/usr/src/madwifi-0.9.2/ath/Makefile:83: warning: ignoring old commands for target `/usr/src/madwifi-0.9.2/ath/uudecode'
scripts/Makefile.build:52: kbuild: /usr/src/madwifi-0.9.2/ath/Makefile - Usage of export-objs is obsolete in 2.6. Please fix!
scripts/Makefile.build:64: kbuild: /usr/src/madwifi-0.9.2/ath/Makefile - list-multi := /usr/src/madwifi-0.9.2/ath/ath_pci.o /usr/src/madwifi-0.9.2/ath/ath_hal.o is obsolete in 2.6. Please fix!
  CC [M]  /usr/src/madwifi-0.9.2/ath/ah_osdep.o
In file included from <command line>:1:
/usr/src/madwifi-0.9.2/ath/../include/compat.h:60:1: error: "__packed" redefined
In file included from include/linux/compiler-gcc4.h:4,
                 from include/linux/compiler.h:42,
                 from include/linux/stddef.h:4,
                 from include/linux/kernel.h:12,
                 from /usr/src/madwifi-0.9.2/ath/../include/compat.h:47,
                 from <command line>:1:
include/linux/compiler-gcc.h:30:1: error: this is the location of the previous definition
In file included from /usr/src/madwifi-0.9.2/ath/ah_osdep.c:2:
/usr/src/madwifi-0.9.2/ath/../hal/linux/ah_osdep.c:44:26: error: linux/config.h: No such file or directory
In file included from /usr/src/madwifi-0.9.2/ath/ah_osdep.c:2:
/usr/src/madwifi-0.9.2/ath/../hal/linux/ah_osdep.c: In function 'ath_hal_sysctl_register':
/usr/src/madwifi-0.9.2/ath/../hal/linux/ah_osdep.c:523: error: too many arguments to function 'register_sysctl_table'
make[3]: *** [/usr/src/madwifi-0.9.2/ath/ah_osdep.o] Error 1
make[2]: *** [/usr/src/madwifi-0.9.2/ath] Error 2
make[1]: *** [_module_/usr/src/madwifi-0.9.2] Error 2
make[1]: Leaving directory `/usr/src/linux-2.6.21-rt8-1mdv'
make: *** [modules] Erreur 2