This is Eggdrop's GNU configure script.
It's going to run a bunch of tests to hopefully make your compile
work without much twiddling.
checking for gcc... no
checking for cc... no
checking for cc... no
checking for cl... no
configure: error: no acceptable C compiler found in $PATH
See `config.log' for more details.
Either your system lacks a C compiler (most likely), or the configure-script is unable to find it (rather unlikely). If you are running a fairly modern linux distribution, then the easiest way to solve this would be to use your package manager (aptitude, apt-get, yum, etc..) to install gcc. Most likely, you'll also have to install the "dev" versions of libc and other libraries, including tcl.