I cannot install thunderbird.tar.bz2. After I extract the file the make command does not work. This error appears:
$ sudo make
KBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd`
make[1]: Entering directory `/usr/src/linux-headers-2.6.38-8-generic'
CC [M] /home/XXXXX/src/wl/sys/wl_linux.o
/home/XXXXX/src/wl/sys/wl_linux.c: In function ‘wl_attach’:
/home/XXXXX/src/wl/sys/wl_linux.c:485:3: error: implicit declaration of function ‘init_MUTEX’
make[2]: *** [/home/XXXXX/src/wl/sys/wl_linux.o] Error 1
make[1]: *** [_module_/home/XXXXX] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.38-8-generic'
make: *** [all] Error 2