make -C /lib/modules/2.6.24-11-generic/build SUBDIRS=/usr/src/alsa/alsa-driver-1.0.15  CPP="gcc -E" CC="gcc" modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.24-11-generic'
scripts/Makefile.build:46: *** CFLAGS was changed in "/usr/src/alsa/alsa-driver-1.0.15/acore/Makefile". Fix it to use EXTRA_CFLAGS.  Stop.
make[2]: *** [/usr/src/alsa/alsa-driver-1.0.15/acore] Error 2
make[1]: *** [_module_/usr/src/alsa/alsa-driver-1.0.15] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.24-11-generic'
make: *** [compile] Error 2