Re: compiling pdftex in Delphi

    Can someone tell me if pdfTex uses some libraries written in C language?

Yes, it certainly does. Also some C++ (unfortunately). If you look in
../web2c/pdftexdir, you will see a lot of *.c and a couple *.cc source
files. I believe some of the change file also depends on the web2c
infrastructure, i.e., the eventual C compilation.  In addition, there
are the external libraries such as zlib, libpng, and more. --good luck, karl.