deft

No globbing, no guessing. The entry point is exactly src/main.cpp / src/main.c (executables) or src/lib.cpp / src/lib.c (libraries). Missing it fails the build immediately.

A package is single-language. C and C++ are distinct enums in the build engine, and a package containing both source languages fails the build rather than silently mixing flags.

Optimization levels, warnings, language standard, RTTI, and exceptions all live in deft.toml. No messy flag strings.

deft.lock pins every dependency to an exact git commit SHA, written atomically. deft build always honors the lock; deft update is the only command that rewrites it.

A std::thread + Mutex + mpsc work queue compiles translation units across all cores (-j to tune), streaming diagnostics back as each unit finishes.

Archiving tries ar (Unix) or llvm-ar then lib.exe (Windows), falling through only when a tool is genuinely missing.