Hi,

I had similar issues compiling a "clean" version of openwrt for the WNR3500L.
One revolved around libc on my current openwrt compiler. To resolve this I created a new guest on my VMWare server (which is free) and installed a new clean build environment on CentOS 5.4.
The other issue of the patch files failing on the latest openwrt release I resolved by commenting out the "checkout" line in the "openwrt_build.sh" script which comes with the myopenrouter patches for openwrt:
# svn co svn://svn.openwrt.org/openwrt/trunk $TARGET_DIR

I then ran the following from the command line prior to executing the "openwrt_build.sh" script:
svn co -r 17604 svn://svn.openwrt.org/openwrt/trunk openwrt

This downloads the revision of openwrt which existed on 17th Sept 2009, one day prior to when these patches were released.

After running a "make menuconfig" within the openwrt directory and exiting immediately, saving the .config, I ran a successful "make V=99". I was then able to successfully upload the chk successfully to the WNR3500L.

After much frustration and de-bricking, am I now able to start adding my own modifications to the code (meshing, chilli, openvpn, etc.) which will make the WNR3500L the worthy successor to the now-dated Linksys WRT54GL. Perhaps they may even rename it openwnr :-)