There are separate derivations for these libraries and we don't want
conflict. Multitarget is generally more useful, and will eventually
speed up cross builds, so why not?!
I needed to override some parameters because of an error I had:
"Error: modDirVersion specified in the Nix expression is wrong, it should be: 4.9.60+"
but the following override would not be taken into account
pkg.override ({
modDirVersion="4.9.60+";
src=pkgs.lib.cleanSource /home/teto/mptcp;
})
because the override would be overriden by the nixpkgs parameters
because of concatenation order:
https://nixos.org/nix/manual/#sec-language-operators
The header file xlocale.h has been removed in glibc 2.26.
Quoting the release notes[1]:
* The nonstandard header <xlocale.h> has been removed. Most programs
should use <locale.h> instead. If you have a specific need for the
definition of locale_t with no other declarations, please contact
libc-alpha@sourceware.org and explain.
Tested by building on x86_64-linux and it now succeeds.
[1]: https://sourceware.org/ml/libc-alpha/2017-08/msg00010.html
Signed-off-by: aszlig <aszlig@nix.build>
Cc: @viric
One should depend on
- `stdenv.cc.bintools`: for executables at build time
- `libbfd` or `libiberty`: for those libraries
- `targetPackages.cc.bintools`: for exectuables at *run* time
- `binutils`: only for specifically GNU Binutils's executables, regardless of
the host platform, at run time.
On most distros, these are just built and distributed as part of
binutils. We don't use binutils across the board, however, but rather
switch between binutils and a cctools-binutils mashup, and change the
outputs on binutils too. This creates a combinatorial conditional soup
which is hard to maintain.
My hope is to lower the the state space. While my patch isn't the most
maintainable, they make downstream packages become more maintainable to
compensate. The additional derivations themselves are completely
platform-agnostic, always they always supports all possible target
platforms, and always yield "out" and "dev" outputs. That, in turn,
allows downstream packages to not worry about a dependency
shape-shifting under them.
In fact, the actual binutils package can avoid needing multiple outputs
now that these serve the requisite libraries, so that also can become
simpler on all platforms, too, removing the original wart this PR
circumnavigates for now. Actually changing the binutils package to
leverage is a mass rebuild, however, so I'll leave that for a separate
PR.
I do hope to upstream something like my patch too, but until then I'll
make myself maintainer of these derivations
