Hi, I was trying to build TrueCrypt (www.truecrypt.org) on my FC5 x86_64 box and noticed that the required dm.h header file is not included in the kernel-devel-2.6.16-1.2122_FC5 rpm. Any chance this file could be included in feature kernels? To solve this I had to download the kernel-2.6.16-1.2122_FC5.src.rpm start the build (in case it got patched), interrupt it and copy dm.h from BUILD/kernel-2.6.16/linux-2.6.16.x86_64/drivers/md/ to my TrueCrypt source directory. While this is a solution it would save a big download and some fiddling to get this resolved. Would appreciate it! If there's a better way to request this, I would appreciate the info. Thanks and regards, Patrick