Makefile
Resources related to constructing a GNU makefile creation and use.
GNU make - make process, rules, recipes, conditionals, integration, etc.
Compiler options - list of common options and predecessors.
Variables Used by Implicit Rules - list of common variables/flags
C/C++
Resources for ISO/IEC programming standards and language specifications based on work group analysis conducted by the International Standards Organization.
C standards (working draft) - ISO/IEC 9899 (2007)
C embedded extensions (working drafts) - TR 18037 Embedded C
C++ standards (working draft) - ISO/IEC 9989 (2017)
C/C++ Secure coding tips - Training course focused on medical devices