On 27 September 2017 at 05:49, R0b0t1 <r03...@gmail.com> wrote: > On Tue, Sep 26, 2017 at 4:30 PM, Jonathan Wakely <jwakely....@gmail.com> > wrote: >> On 26 September 2017 at 22:05, R0b0t1 <r03...@gmail.com> wrote: >>> Hello, >>> >>> I am having problems understanding the build instructions for GCC. I >>> can almost always produce toolchains which function but I can find >>> programs or scripts which do more or less the same thing that produce >>> nonfunctional toolchains or which abort at some stage of compilation. >>> (To clarify: I have no problem compiling the project, but I need help >>> knowing all options which must be configured.) >> >> What does "knowing all options which must be configured" mean? >> >> Must be configured for what? >> > > For a working, "self contained" toolchain (no dependencies outside of > some directory). I'm sorry I can't be more specific, that is part of > the problem. > > It is possible I am aware of all steps that anyone else is aware of. > If that is the case perhaps I am experiencing bugs or configuration > issues. > >>> This is related to my questions about generating an arm-none-eabi >>> toolchain, however I also wish to build targets for >>> x86_64-pc-linux-gnu, aarch64-unknown-linux-gnu, >>> powerpc64le-unknown-linux-gnu, etc. >>> >>> Broadly, I have the following questions: >>> >>> 1) What is the complete list of dependencies for a GCC based >>> toolchain? I am led to believe it is: zlib, gmp, mpfr, mpc, isl, >>> expat, binutils, gcc, glibc, and gdb. >> >> https://gcc.gnu.org/install/prerequisites.html should be clear. >> >> isl is optional, it's not required. expat is not needed. zlib is not >> needed, because the source for it is included in the GCC tree. >> > > Thank you, this explains some earlier confusion I had about there > being no --with-zlib switch, but I still wonder why it is not present > (c.f. gmp, mpfr, etc.). > > I am still left with the question of how to link GCC with a > nonstandard libc. Instructions for doing this with miscellaneous > programs are available,[1] but it does not seem like there is any way > to do it via configure.
Build it with a compiler that uses the libc you want to use. > Are you (or anyone else) able to make a recommendation? > > I have tried to refer to each project's documentation and the Linux > From Scratch documentation, but they do not seem to plan for precisely > what I am doing. You haven't explained what you're doing. You're being very vague, so it's not clear what you're trying to do. > E.g. I would like to compile most non-system programs against > non-system libraries and run them as my user. I can do this and don't > mean to ask general questions on this list. However, the main problem > existing solutions have is that do not seem to configure GCC properly. Define "properly". >> >>> 2) How do I specify each of the above to be reliant on the versions of >>> other programs that it may depend on being used for the toolchain? >>> >>> Ideally these toolchains would not use system libraries if CHOST is >>> the same as BHOST. >>> >>> 3) Are there any architecture specific options for any of the possible >>> targets? >> >> Read the docs. >> https://gcc.gnu.org/install/specific.html > > I did not know this page existed, It's linked to from the start of https://gcc.gnu.org/install/ which is linked to from https://gcc.gnu.org/ so you don't seem to have looked very far. > but it seems more like errata. It > doesn't give helpful pointers as to configuration you may need to > accomplish X. It may be that what I am looking for does not exist, > which I expected may be the case. It would depend what X is. I don't see how anyone can help you with this vagueness. > Thank you, > R0b0t1 > > > [1]: http://www.tldp.org/HOWTO/Glibc2-HOWTO-6.html
