The Not-Enough-C Compiler, with fairly complete support for C89, C99, and C11 as well as some C23, GCC and MSVC extensions, targeting x86-64 Linux [TODO: and Windows].
I have a number of cool optimizations I want to implement, but the back end will remain entirely naive until I have gotten the front end to a reasonable level of completeness and correctness. It just got to the point of self-hosting, and can already run some random C projects I found.
Necc currently invokes GCC for assembly and linking simply because GCC probably knows the sane parameters for your platform. Needing an entire separate C compiler to run my C compiler is of course quite silly; pretty soon, I'll get around to writing the necessary logic for these parameters, and then Necc shouldn't be requiring anything other than binutils and a standard library anymore.
To build the project on Linux, set GLIBC_DIR in the config file to the path
containing your glibc's include directory
(/usr/lib/gcc/x86_64-pc-linux-gnu/13.2.1 on my machine) and run GNU
make; the binaries are put into bin/. To execute the tests, run
make test.
Necc is covered by the BSD 3-Clause Clear license. Some files in this repository are redistributed from other projects; the applicable licenses are contained in the respective files or directories.