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# 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, noLibc ? false, nativePrefix ? ""
, gcc ? null, libc ? null, binutils ? null, shell ? "", cross
}:
assert nativeTools -> nativePrefix != "";
assert !nativeTools -> gcc != null && binutils != null;
assert !noLibc -> (!nativeLibc -> libc != null);
let
chosenName = if name == "" then gcc.name else name;
gccLibs = stdenv.mkDerivation {
name = chosenName + "-libs";
phases = [ "installPhase" ];
installPhase = ''
echo $out
ensureDir $out
cp -Rd ${gcc}/${cross.config}/lib $out/lib
chmod -R +w $out/lib
for a in $out/lib/*.la; do
sed -i -e s,${gcc}/${cross.config}/lib,$out/lib,g $a
done
rm -f $out/lib/*.py
'';
};
in
stdenv.mkDerivation {
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 binutils;
crossConfig = if (cross != null) then cross.config else null;
gccLibs = if gcc != null then gccLibs else null;
name = chosenName;
langC = if nativeTools then true else gcc.langC;
langCC = if nativeTools then true else gcc.langCC;
langF77 = if nativeTools then false else gcc ? langFortran;
shell = if shell == "" then stdenv.shell else shell;
meta = if gcc != null then gcc.meta else
{ description = "System C compiler wrapper";
};
passthru = {
target = cross;
};
}
|
