gcc9 in nix-shell

gcc-env.nix

{ pkgs ? import <nixpkgs> {} }:
pkgs.mkShell {
  buildInputs = [
    pkgs.gcc9
    pkgs.gmp 
    pkgs.primesieve
  ];
}


# Usage:
# nix-shell gcc-env.nix
# gcc foo.c

primesieve.c

#include <stdio.h>
#include <primesieve.h>

int main() {
		printf("primesieve version %s\n", PRIMESIEVE_VERSION);
		printf("compiler version %s\n", __VERSION__);
		return 0;
}

usage.sh

# This seems a bit hacky but it gets around the `nix-shell -p gcc9 --run 'gcc --version' => 'gcc 10.x...'` problem

nix-shell gcc-env.nix
nix run nixpkgs.gcc9

gcc --version
# gcc (GCC) 9.3.0
# Copyright (C) 2019 Free Software Foundation, Inc.
# This is free software; see the source for copying conditions.  There is NO
# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

gcc primesieve.c
./a.out
# primesieve version 7.6
# compiler version 9.3.0