“21st Century C” nuggets.

• LLVM

• gcc/clang
• gdb (others?), lldb
• valgrind
• gprof
• make
• autotools versus meson
• pkg-config
• lint/splint
• meld(?)
• vagrant/libvirt

• designated initializers
• _Thread_local and, in general, thread-safe code
• assert, static_assert
• static analyzers
• specific development libraries
• GNU extensions
• OpenMP
• atomic variables
• gcov
• linking (dlopen/dlsym)

• install 3rd party libraries
• specify compiler and library search options (-I, -L)
• select build system

• An Introduction to Valgrind Memcheck