cross-compiler

i386 cross-compiler for the Free and Simple Operative System

Dependencies

If you are on gentoo, you can run:

$ sudo ./gentoo-deps.sh

If you are on debian or ubuntu, you can run:

$ sudo ./debian-deps.sh

In other systems, you will need to install:

• gcc
• make
• bison
• flex
• gmp
• mpc
• mpfr
• texinfo

Building the cross-compiler

Simply run

$ git clone https://github.com/fs-os/cross-compiler
$ cd cross-compiler
$ make
...

Or in case you don't use sudo (for example doas):

$ make ADMIN_CMD=doas
...

Or individual make targets (Each target depends on the one before):

$ make deps-binutils    # For downloading and extracting the binutils source
...
$ make build-utils      # For building binutils 2.39 (Needs dependencies)
...
$ make deps-gcc         # For downloading and extracting the gcc source
...
$ make build-gcc        # For building gcc 12.2.0 (Needs binutils)
...

And if you also want to compile gdb (/usr/local/cross/bin/i686-elf-gdb) with a custom patch (not included in all):

$ make deps-gdb         # For downloading and extracting the gcc source
...
$ make build-gdb        # For building gdb 12.1
...

Todo

• When building gcc-12.2.0 (or gcc-11.3.0) with nix-shell, it fails with (Same error 3 times):

  ../../../gcc-11.3.0/libcpp/expr.c:811:35: error: format not a string literal and no format arguments [-Werror=format-security]