linking path), and with this achieved bash being cross-compilable.
I fixed the few expressions involved in bash building, so they have well stated
native and non-native inputs.
I also tried to cross-build guile, and with this I found a problem in the
actual cross-gcc: it calls the binutils ld, instead of the ld wrapper. This
way, the programs/shared_libraries don't get the proper -rpath.
svn path=/nixpkgs/branches/stdenv-updates/; revision=18497
derivation, the "buildInputs" in every stdenv mkDerivation don't map now
directly to the environment
variable "buildInputs" in the builder, but "buildNativeInputs". So, the inputs
build by the native compiler.
When cross compiling, they will map to the environment variable "buildInputs"
(yes, now the same name), which means does to be built with the cross compiler.
I think I improved the naming of variables a bit. There was a big mess,
specially in the stdenv adapter for cross building, and also in the default
builder script.
I also tried to add proper manager of propagatedInputBuilds, these being
propagated considering the host or build origin of that input build (so, at the
end, being those propagatedInputBuilds being propagated properly to the native
or the cross compiler.
svn path=/nixpkgs/branches/stdenv-updates/; revision=18477
My idea is to provide special stdenv expressions that will contain in the path
additional cross compilers. As most expressions for programs accept a stdenv parameter,
we could substitute this parameter with the special stdenv, which will have a
generic builder that attempts the usual "--target=..." and can additionally
have an env variable like "cross" with the target architecture set.
So, finally we could have additional expressions like this:
bashRealArm = makeOverridable (import ../shells/bash) {
inherit fetchurl bison;
stdenv = stdenvCross "armv5tel-unknown-linux-gnueabi";
};
Meanwhile it does not work - I still cannot get the cross-gcc to build.
I think it does not fill the previous expressions with a lot of noise, so I
think it may be a good path to follow.
I only touched some files of the current stdenv: gcc-4.3, kernel headers
2.6.28, glibc 2.9, ...
I tried to use the gcc-cross-wrapper, that may be very outdated. Maybe I will
update it, or update the gcc-wrapper expression to make it fit the cross tools,
but meanwhile I even cannot build gcc, so I have not tested the wrapper.
This new idea on cross compiling is not similar to that of the
nixpkgs/branches/cross-compilation, which mostly added bare new expressions for
anything to be cross compiled, if I understood it correctly.
I cared not to break anything of the usual stdenv in all this work.
svn path=/nixpkgs/branches/stdenv-updates/; revision=18343
contains arbitrary information about a package, like this:
meta = {
homepage = "http://gcc.gnu.org/";
license = "GPL/LGPL";
description = "GNU Compiler Collection, 4.0.x";
};
The "meta" attribute is not passed to the actual derivation
operation, so it's not a dependency --- changes to "meta" attributes
don't trigger a recompilation.
Now we have to standardise some useful attributes ;-)
svn path=/nixpkgs/branches/usability/; revision=5024
Even though you could just inherit binutils it is conceptually cleaner (I
think) to make these tools available here.
svn path=/nixpkgs/trunk/; revision=4967
