Compiling DD-WRT sources
From DD-WRT Wiki
First install some LINUX-System like KNOPPIX and open the root-Shell (or login as "root" in standard shell with "su" and "type in your root Password"), then do this Lines (for Example 0415-2006-snapshot.tar.bz2 sources!)
cd /
mkdir home/dd-wrt
mkdir home/dd-wrt/snapshot
cd home/dd-wrt/snapshot
wget http://www.dd-wrt.com/dd-wrtv2/downloads/sourcecode/0415-2006-snapshot.tar.bz2
tar -xjvf 0416-2006-snapshot.tar.bz2
cd home/dd-wrt
mkdir home/dd-wrt/toolchains
cd home/dd-wrt/toolchains
wget http://www.dd-wrt.com/dd-wrtv2/downloads/sourcecode/toolchains.x86.debian.sp1.tar.bz2
tar -xjvf toolchains.x86.debian.sp1.tar.bz2
mv /home/dd-wrt/toolchains/3.4.6-uclibc-0.9.28 /home/dd-wrt/toolchains/3.4.6
mv /home/dd-wrt/toolchains/4.1.0-uclibc-0.9.28 /home/dd-wrt/toolchains/4.1.0
cd home/dd-wrt/snapshot/DD-WRT/src/router/iptables/extensions
chmod 755 .layer7-test
chmod 755 .dccp-test
cd home/dd-wrt/snapshot/DD-WRT/opt
rm libgcc_s.so
cd home/dd-wrt
mkdir home/dd-wrt/image
ln -s /home/dd-wrt/image /GruppenLW
cd home/dd-wrt/snapshot/DD-WRT/opt
then start compiling with
./install.sh
your images should be in home/dd-wrt/image