If ever tried to find x509 DER or PEM parsing and verification facilities to embed in your low-level C/C++ code and failed you are in right place. This project contains MBEDTLS' certificates parsing/validation subsystem ready to embed in any C project.
Build requires no additional dependencies. Just run make command:
$ make
The project's Makefile is easy to modify, you may add your own custom CFLAGs or easily embed in your project build system.
You may want to change some of building parameters in ./mbedtls/include/mbedtls/config.h.