itservers:/var/www# apt-get install apache2-utils autoconf automake autotools-dev binutils build-essential bzip2 ca-certificates comerr-dev cpp cpp-4.1 dpkg-dev file g++ g++-4.1 gawk gcc gcc-4.1 libapr1 libaprutil1 libc6-dev libcurl3 libcurl3-openssl-dev libexpat1 libidn11 libidn11-dev libkadm55 libkrb5-dev libmagic1 libncurses5-dev libneon26 libpcre3 libpq5 libsigc++-2.0-dev libsqlite0 libsqlite3-0 libssl-dev libssp0-dev   libstdc++6-4.1-dev libsvn1 libtool libxml2 lighttpd linux-kernel-headers lynx m4 make mime-support ntp ntpdate openssl patch perl perl-modules php5-cgi php5-common php5-sqlite pkg-config screen sqlite subversion ucf zlib1g-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
apache2-utils is already the newest version.
apache2-utils set to manually installed.
autoconf is already the newest version.
autoconf set to manually installed.
automake is already the newest version.
autotools-dev is already the newest version.
autotools-dev set to manually installed.
binutils is already the newest version.
binutils set to manually installed.
ca-certificates is already the newest version.
ca-certificates set to manually installed.
cpp is already the newest version.
cpp set to manually installed.
cpp-4.1 is already the newest version.
cpp-4.1 set to manually installed.
file is already the newest version.
g++-4.1 is already the newest version.
g++-4.1 set to manually installed.
gcc is already the newest version.
gcc set to manually installed.
gcc-4.1 is already the newest version.
gcc-4.1 set to manually installed.
libapr1 is already the newest version.
libapr1 set to manually installed.
libc6-dev is already the newest version.
libc6-dev set to manually installed.
libcurl3 is already the newest version.
libcurl3 set to manually installed.
Note, selecting libcurl4-openssl-dev instead of libcurl3-openssl-dev
libexpat1 is already the newest version.
libexpat1 set to manually installed.
libidn11 is already the newest version.
libmagic1 is already the newest version.
libpcre3 is already the newest version.
libpq5 is already the newest version.
libpq5 set to manually installed.
libsigc++-2.0-dev is already the newest version.
libsqlite3-0 is already the newest version.
libssl-dev is already the newest version.
Note, selecting gcc-4.1 instead of libssp0-dev
gcc-4.1 is already the newest version.
libstdc++6-4.1-dev is already the newest version.
libstdc++6-4.1-dev set to manually installed.
libsvn1 is already the newest version.
libsvn1 set to manually installed.
libtool is already the newest version.
libxml2 is already the newest version.
lighttpd is already the newest version.
Package linux-kernel-headers is a virtual package provided by:
  linux-libc-dev 2.6.26-15lenny3
You should explicitly select one to install.
E: Package linux-kernel-headers has no installation candidate
itservers:/var/www#