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Author SHA1 Message Date
Motiejus Jakštys 08b02cb7d2 rename absolute_path to zig_path
this is not an absolute path.
2022-09-27 15:37:28 +03:00
Motiejus Jakštys 0302fb630a defs: fix import paths
Empirically these need to come from most specfic to least specific.

The error message is as follows:

    In file included from test/c/main.c:1:
    In file included from external/zig_sdk/lib/libcxx/include/stdio.h:107:
    In file included from external/zig_sdk/lib/libc/include/generic-glibc/stdio.h:38:
    external/zig_sdk/lib/libc/include/generic-glibc/bits/types.h:139:3: error:
    # error
      ^
    external/zig_sdk/lib/libc/include/generic-glibc/bits/types.h:145:1: error: unknown type name '__STD_TYPE'
    __STD_TYPE __DEV_T_TYPE __dev_t;        /* Type of device numbers.  */

Dissected `generic-glibc/bits/types.h:#error`:

    #if __WORDSIZE == 32
    <...>
    # define __STD_TYPE		__extension__ typedef
    #elif __WORDSIZE == 64
    <...>
    # define __STD_TYPE		typedef
    #else
    # error
    #endif

So we do not have the `__WORDSIZE`. Where does that come from? Probably from a
directory that has an `x86_64` in it. How does that get included? Let's start
with `lib/libcxx/include/stdio.h`:

	16 #include_next <stdio.h>

Now previously our `c++` command line looked like this:
    external/zig_sdk/tools/c++ \
    <...>
    -Iexternal/zig_sdk/lib/include \
    -Iexternal/zig_sdk/lib/libcxx/include \
    -Iexternal/zig_sdk/lib/libcxxabi/include \
    -Iexternal/zig_sdk/lib/libunwind/include \
    -Iexternal/zig_sdk/lib/libc/include/generic-glibc \
    -Iexternal/zig_sdk/lib/libc/include/any-linux-any \
    -Iexternal/zig_sdk/lib/libc/include/x86_64-linux-gnu \
    -Iexternal/zig_sdk/lib/libc/include/x86_64-linux-any \
    -Iexternal/zig_sdk/lib/libc/include/x86-linux-any \
    -Iexternal/zig_sdk/glibc-hacks \
    <...>

So the next place it will find `stdio.h` is in `generic-glibc`, which already
uses the `__WORDSIZE`. If we make the "next" include to be the arch-specific
one instead of the generic-glibc, things start compiling again.

Fix the same fo musl.
2022-09-27 10:15:02 +03:00
Ken Micklas ab59c18d60 WIP: use relative paths for tools 2022-09-27 10:14:59 +03:00
Motiejus Jakštys 9dbba15064 partially revert c023c217a5
The `toolchain/private/cc_toolchains.bzl` changes were added by accident.
2022-09-22 13:32:17 +03:00
Motiejus Jakštys c023c217a5 contrib/own_zig.md: clarify zig-bootstrap instructions 2022-09-22 11:39:39 +03:00
Fabian Hahn 4a6eef7945 added Windows host support 2022-06-02 05:27:22 +03:00
Jeremy Volkman 921fda9260 Adds dynamic_library_linkopts to zig_cc_toolchain_config
If specified, the flags in dynamic_library_linkopts are included in
cpp_link_dynamic_library and cpp_link_nodeps_dynamic_library actions.
2022-06-01 11:49:13 +03:00
laurynasl 64be98b830 Hide toolchain internals 2022-04-07 11:23:40 +00:00