2aba922d30
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I tried to use the gcc-cross-wrapper, that may be very outdated.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
110 lines
3.4 KiB
Nix
110 lines
3.4 KiB
Nix
{ stdenv, fetchurl, noSysDirs
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, langC ? true, langCC ? true, langFortran ? false, langTreelang ? false
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, langJava ? false
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, profiledCompiler ? false
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, staticCompiler ? false
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, enableShared ? true
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, texinfo ? null
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, gmp, mpfr
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, bison ? null, flex ? null
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, zlib ? null, boehmgc ? null
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, enableMultilib ? false
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, name ? "gcc"
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, cross ? null
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, binutilsCross ? null
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, glibcHeadersCross ? null
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}:
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assert langTreelang -> bison != null && flex != null;
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assert cross != null -> profiledCompiler == false && enableMultilib == true;
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with stdenv.lib;
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let version = "4.3.4"; in
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stdenv.mkDerivation ({
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name = "${name}-${version}" +
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stdenv.lib.optionalString (cross != null) "-${cross}";
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builder = ./builder.sh;
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src =
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optional /*langC*/ true (fetchurl {
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url = "mirror://gcc/releases/gcc-${version}/gcc-core-${version}.tar.bz2";
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sha256 = "1yk80nwyw8vkpw8d3x7lkg3zrv3ngjqlvj0i8zslzgj7a27q729i";
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}) ++
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optional langCC (fetchurl {
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url = "mirror://gcc/releases/gcc-${version}/gcc-g++-${version}.tar.bz2";
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sha256 = "0d8pyk5c9zmph25f4fl63vd8vhljj6ildbxpz2hr594g5i6pplpq";
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}) ++
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optional langFortran (fetchurl {
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url = "mirror://gcc/releases/gcc-${version}/gcc-fortran-${version}.tar.bz2";
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sha256 = "1xf2njykv1qcgxiqwj693dxjf77ss1rcxirylvnsp5hs89mdlj12";
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}) ++
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optional langJava (fetchurl {
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url = "mirror://gcc/releases/gcc-${version}/gcc-java-${version}.tar.bz2";
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sha256 = "1v3krhxi3zyaqfj0x8dbxvg67fjp29cr1psyf71r9zf757p3vqsw";
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});
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patches =
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[./pass-cxxcpp.patch]
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++ optional noSysDirs ./no-sys-dirs.patch
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++ optional (noSysDirs && langFortran) ./no-sys-dirs-fortran.patch
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++ optional langJava ./java-jvgenmain-link.patch;
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inherit noSysDirs profiledCompiler staticCompiler;
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buildInputs = [texinfo gmp mpfr]
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++ (optionals langTreelang [bison flex])
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++ (optional (zlib != null) zlib)
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++ (optional (boehmgc != null) boehmgc)
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++ (optionals (cross != null) [binutilsCross])
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;
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configureFlags = "
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${if enableMultilib then "" else "--disable-multilib"}
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${if enableShared then "" else "--disable-shared"}
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--disable-libstdcxx-pch
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--with-system-zlib
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--enable-languages=${
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concatStrings (intersperse ","
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( optional langC "c"
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++ optional langCC "c++"
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++ optional langFortran "fortran"
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++ optional langJava "java"
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++ optional langTreelang "treelang"
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)
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)
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}
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${if stdenv.isi686 then "--with-arch=i686" else ""}
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${if cross != null then "--disable-libssp --disable-nls" +
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" --with-headers=${glibcHeadersCross}/include --target=${cross}" +
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" --disable-shared" else ""}
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";
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#Above I added a hack on making the build different than the host.
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# Needed for the cross compilation to work
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AR = "ar";
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LD = "ld";
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CC = "gcc";
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NIX_EXTRA_LDFLAGS = if staticCompiler then "-static" else "";
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inherit gmp mpfr;
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passthru = { inherit langC langCC langFortran langTreelang enableMultilib; };
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meta = {
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homepage = "http://gcc.gnu.org/";
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license = "GPL/LGPL";
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description = "GNU Compiler Collection, 4.3.x";
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};
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} // (if langJava then {
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postConfigure = ''
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make configure-gcc
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sed -i gcc/Makefile -e 's@^CFLAGS = .*@& -I${zlib}/include@ ; s@^LDFLAGS = .*@& -L${zlib}/lib@'
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sed -i gcc/Makefile -e 's@^CFLAGS = .*@& -I${boehmgc}/include@ ; s@^LDFLAGS = .*@& -L${boehmgc}/lib -lgc@'
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'';
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} else {}))
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