[SOLVED] No such file or directory. Stop.

Me again. :<
So, I installed make and I assume all it's dependencies, since I got it from the package manager. When I go to install my wireless driver, it stops with this output:
make -C tools
make[1]: Entering directory `/home/cody/Downloads/2010_1216_RT5390_LinuxSTA_V2.4.0.4_WiFiBTCombo_DPO/tools'
gcc -g bin2h.c -o bin2h
make[1]: Leaving directory `/home/cody/Downloads/2010_1216_RT5390_LinuxSTA_V2.4.0.4_WiFiBTCombo_DPO/tools'
/home/cody/Downloads/2010_1216_RT5390_LinuxSTA_V2.4.0.4_WiFiBTCombo_DPO/tools/bin2h
cp -f os/linux/Makefile.6 /home/cody/Downloads/2010_1216_RT5390_LinuxSTA_V2.4.0.4_WiFiBTCombo_DPO/os/linux/Makefile
make -C /lib/modules/2.6.38.7-desktop586-1.mga/build SUBDIRS=/home/cody/Downloads/2010_1216_RT5390_LinuxSTA_V2.4.0.4_WiFiBTCombo_DPO/os/linux modules
make: *** /lib/modules/2.6.38.7-desktop586-1.mga/build: No such file or directory. Stop.
make: *** [LINUX] Error 2
The problem seems to be that some directory or file named "build" isn't where it's expecting it be to be. Looking at it with Dolphin, it really isn't there. D:
Once again, any help is very much appreciated. xD Thankee.
So, I installed make and I assume all it's dependencies, since I got it from the package manager. When I go to install my wireless driver, it stops with this output:
make -C tools
make[1]: Entering directory `/home/cody/Downloads/2010_1216_RT5390_LinuxSTA_V2.4.0.4_WiFiBTCombo_DPO/tools'
gcc -g bin2h.c -o bin2h
make[1]: Leaving directory `/home/cody/Downloads/2010_1216_RT5390_LinuxSTA_V2.4.0.4_WiFiBTCombo_DPO/tools'
/home/cody/Downloads/2010_1216_RT5390_LinuxSTA_V2.4.0.4_WiFiBTCombo_DPO/tools/bin2h
cp -f os/linux/Makefile.6 /home/cody/Downloads/2010_1216_RT5390_LinuxSTA_V2.4.0.4_WiFiBTCombo_DPO/os/linux/Makefile
make -C /lib/modules/2.6.38.7-desktop586-1.mga/build SUBDIRS=/home/cody/Downloads/2010_1216_RT5390_LinuxSTA_V2.4.0.4_WiFiBTCombo_DPO/os/linux modules
make: *** /lib/modules/2.6.38.7-desktop586-1.mga/build: No such file or directory. Stop.
make: *** [LINUX] Error 2
The problem seems to be that some directory or file named "build" isn't where it's expecting it be to be. Looking at it with Dolphin, it really isn't there. D:
Once again, any help is very much appreciated. xD Thankee.