CHelper
chelper is C/C++/ObjC headers converting to pascal utility.
Read more about it on freepascal wiki
Code
Public Repository: https://svn.code.sf.net/p/lazarus-ccr/svn/components/chelper/
CConvert
cconvert is a command-line utility that's used for parsing headers. It's designed to be a stand-alone parser. The converted should produce read-for-use pascal headers. -defines - allows to add additional C-preprocess definitions.