- Before this changes, cflags and ldflags for the native and the cross compiler
got mixed. Not all the gcc-wrapper/gcc-cross-wrapper variables are
independant now, but enough, I think.
- Fixed the generic stdenv expression, which did a big mess on buildInputs and
buildNativeInputs. Now it distinguishes when there is a stdenvCross or not.
Maybe we should have a single stdenv and forget about the stdenvCross
adapter - this could end in a stdenv a bit complex, but simpler than the
generic stdenv + adapter.
- Added basic support in pkgconfig for cross-builds: a single PKG_CONFIG_PATH
now works for both the cross and the native compilers, but I think this
should work well for most cases I can think of.
- I tried to fix the guile expression to cross-biuld; guile is built, but not
its manual, so the derivation still fails. Guile requires patching to
cross-build, as far as I understnad.
- Made the glibcCross build to be done through the usage of a
gcc-cross-wrapper over the gcc-cross-stage-static, instead of using it
directly.
- Trying to make physfs (a neverball dependency) cross build.
- Updated the gcc expression to support building a cross compiler without getting
derivation variables mixed with those of the stdenvCross.
svn path=/nixpkgs/branches/stdenv-updates/; revision=18534
- Stating better the guile dependencies (native/host) for guile to build
- Fixing cross-linking, through --rpath-link (ld(1) explains well about it
- Made gcc call the linker and the assembler through the gcc wrapper instead of
directly. I thought this was the source of missing -rpath's, but the source
of the problem ended up being the lack of --rpath-link. But I think the
native gcc calls the wrapped ld and as, so let's do the same cross
compiling.
- Removed the binutilsCross from the glibc expressions. Now they are built
using the gcc-cross-wrapper, and they were built with the direct gcc and
binutils before this change.
- I think patchelf and strip don't break the cross-compiled binaries, so I
reallow them on cross compilation.
- I disable the checkPhase on cross compilation. This made gmp and libtool
fail when cross compiled, iirc.
svn path=/nixpkgs/branches/stdenv-updates/; revision=18498
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
