Atheros/madwifi support

Hello, I try to install madwifi in order to support my wireless Atheros card. But compilation fails.
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[root@diotimos madwifi-0.9.4]# make
./kernelversion.c:13:30: fatal error: linux/utsrelease.h: No such file or directory
compilation terminated.
Makefile.inc:81: *** Cannot detect kernel version - please check compiler and KERNELPATH. Stop.
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It seems it is a distribution issue. Kernel devel is installed.
Kernel module ath_pci does not seem to be available in the repos.
Can someone help?
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[root@diotimos madwifi-0.9.4]# make
./kernelversion.c:13:30: fatal error: linux/utsrelease.h: No such file or directory
compilation terminated.
Makefile.inc:81: *** Cannot detect kernel version - please check compiler and KERNELPATH. Stop.
--------------------------------------------------------------------------------
It seems it is a distribution issue. Kernel devel is installed.
Kernel module ath_pci does not seem to be available in the repos.
Can someone help?