44 lines
		
	
	
		
			745 B
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			44 lines
		
	
	
		
			745 B
		
	
	
	
		
			Nix
		
	
	
	
	
	
{ stdenv, writeText, which, strace }:
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let
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  hello_c = writeText "hello.c" ''
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    #include <stdio.h>
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    #include <limits.h>
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    #include <xmmintrin.h>
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    int main()
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    {
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            printf("Hello world!\n");
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            return 0;
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    }
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  '';
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in
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stdenv.mkDerivation rec {
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  version = "0.0.1";
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  name = "lto-c";
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  buildInputs = [ stdenv which strace ];
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  src = hello_c;
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  dontUnpack = true;
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  dontConfigure = true;
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  NIX_DEBUG = 0;
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  buildPhase = ''
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    set -x
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    echo CC=$CC
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    echo LD=$LD
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    echo -------------------------------------------
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    env
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    echo -------------------------------------------
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    cp ${hello_c} hello.c
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    $CC -v -flto hello.c -o hello
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    ./hello
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    set +x
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  '';
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  installPhase = ''
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    touch $out
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  '';
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}
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