nixpkgs/pkgs/build-support/gcc-wrapper/default.nix
Eelco Dolstra eeed10ba8e * g77 -> gfortran throughout. Got rid of the separate
expressions/builders for Fortran.  Tested by building Octave with
  gfortran 4.3.

svn path=/nixpkgs/branches/stdenv-updates/; revision=14978
2009-04-09 15:24:33 +00:00

62 lines
2.1 KiB
Nix

# The Nix `gcc' stdenv.mkDerivation is not directly usable, since it doesn't
# know where the C library and standard header files are. Therefore
# the compiler produced by that package cannot be installed directly
# in a user environment and used from the command line. This
# stdenv.mkDerivation provides a wrapper that sets up the right environment
# variables so that the compiler and the linker just "work".
{ name ? "", stdenv, nativeTools, nativeLibc, nativePrefix ? ""
, gcc ? null, libc ? null, binutils ? null, shell ? ""
}:
assert nativeTools -> nativePrefix != "";
assert !nativeTools -> gcc != null && binutils != null;
assert !nativeLibc -> libc != null;
let
gccVersion = (builtins.parseDrvName gcc.name).version;
gccName = (builtins.parseDrvName gcc.name).name;
in
stdenv.mkDerivation {
name =
(if name != "" then name else gccName + "-wrapper") +
(if gcc != null && gccVersion != "" then "-" + gccVersion else "");
builder = ./builder.sh;
setupHook = ./setup-hook.sh;
gccWrapper = ./gcc-wrapper.sh;
ldWrapper = ./ld-wrapper.sh;
utils = ./utils.sh;
addFlags = ./add-flags;
inherit nativeTools nativeLibc nativePrefix gcc;
libc = if nativeLibc then null else libc;
binutils = if nativeTools then null else binutils;
langC = if nativeTools then true else gcc.langC;
langCC = if nativeTools then true else gcc.langCC;
langFortran = if nativeTools then false else gcc ? langFortran;
shell = if shell == "" then stdenv.shell else shell;
meta =
if gcc != null && (gcc ? meta) then
removeAttrs gcc.meta ["priority"] //
{ description = gcc.meta.description + " (wrapper script)";
}
else
{ description = "System C compiler (wrapper script)";
};
# The dynamic linker has different names on different Linux platforms.
dynamicLinker =
if !nativeLibc then
(if stdenv.system == "i686-linux" then "ld-linux.so.2" else
if stdenv.system == "x86_64-linux" then "ld-linux-x86-64.so.2" else
if stdenv.system == "powerpc-linux" then "ld.so.1" else
abort "don't know the name of the dynamic linker for this platform")
else "";
}