Hello, I've been doing some additions related to gcc in stdenv-updates recently. Most important: - I enabled gnat-gcc, the gcc Ada compiler. Buildable through the gcc-4.4 expression, bootstrapping from binary files the gentoo people very kindly prepared (gnatboot expression in nixpkgs). - I enabled ghdl, a gcc vhdl compiler written in Ada. This is not distributed by the gcc people, but an addition a kind person writes and publishes.
Ada is a first-class gcc language (like C or C++), and I think vhdl too, through ghdl. As this, they have some interesting peculiarities for nix: - They provide a 'gcc' binary capable of understanding ada or vhdl. It is not only about a binary with a new binary. This can provide conflict with people wanting ghdl and gnat and gcc (C compiler) at once in the profile. - Each 'gcc' binary from gnat or ghdl needs the proper wrappers to get, at least, access to the startfiles in glibc (crt?.o). - Gnat programs (gnatmake, gnatlink, ...) require special wrappers, not simply that of gcc. By now, in order to get first working derivations, I have copied the gcc-wrapper directory to gnat-directory and ghdl-directory, and modified the peculiarities there. The 'diff' from the parent gcc-wrapper should clarify. I think that we should end up having one single gcc-wrapper, capable of wrapping gnat, vhdl, gcc, g++, fortran, ... Nevertheless, I can't say I can test much gnat. I can test these days the vhdl compiler (I have a job on that until February). If anyone wants to test gnat, perfect. Being able to build ghdl, and maybe gnat again, look like good tests anyway. As an additional concern, we are relying in the gentoo gnat prebuilt binaries to bootstrap the ada compiler. I can try to make our own 'gnat-bootstrap-files'. I imagine you don't want it in the usual bootstrap-files. Do you? :) Do you think we should stop using the gentoo gnat binary soon? I don't see much urgency here. I also had to write some patches to make their build systems cope with the store and the derivations. I will try to care pushing that upstream. If anyone feels any interest in this, please let know. Regards, Lluís. PS: Please, don't ask me to get cross-built vhdl programs. _______________________________________________ nix-dev mailing list [email protected] https://mail.cs.uu.nl/mailman/listinfo/nix-dev
