incomplete definition of type 'struct RBasic'

[kigster]

Has anyone else been seeing this error on Darwin/Mac OS-X?

(01:16:49) [0 / 51] [Prepa] Creating source manifest for //ruby/tests:args_check_sh_test ... (19 actions, 0 running)
(01:16:49) ERROR: /Users/kig/workspace/bazel/rules_ruby/ruby/tests/BUILD.bazel:194:11: Compiling ruby/tests/example_ext.c failed: (Aborted): wrapped_clang failed: error executing command
  (cd /private/var/tmp/_bazel_kig/78d872dc2191ee81b494e94df999b407/sandbox/darwin-sandbox/3/execroot/bazelruby_rules_ruby && \
  exec env - \
    APPLE_SDK_PLATFORM=MacOSX \
    APPLE_SDK_VERSION_OVERRIDE=12.0 \
    PATH=/bin:/usr/bin:/usr/local/bin \
    XCODE_VERSION_OVERRIDE=13.1.0.13A1030d \
  external/local_config_cc/wrapped_clang '-D_FORTIFY_SOURCE=1' -fstack-protector -fcolor-diagnostics -Wall -Wthread-safety -Wself-assign -fno-omit-frame-pointer -O0 -DDEBUG 'DEBUG_PREFIX_MAP_PWD=.' -iquote . -iquote bazel-out/macos-x86_64-applebin_macos-darwin_x86_64-fastbuild/bin -iquote external/org_ruby_lang_ruby_toolchain -iquote bazel-out/macos-x86_64-applebin_macos-darwin_x86_64-fastbuild/bin/external/org_ruby_lang_ruby_toolchain -isystem external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0 -isystem bazel-out/macos-x86_64-applebin_macos-darwin_x86_64-fastbuild/bin/external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0 -isystem external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/x86_64-darwin20 -isystem bazel-out/macos-x86_64-applebin_macos-darwin_x86_64-fastbuild/bin/external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/x86_64-darwin20 -MD -MF bazel-out/macos-x86_64-applebin_macos-darwin_x86_64-fastbuild/bin/ruby/tests/_objs/example_ext_lib/example_ext.d '-frandom-seed=bazel-out/macos-x86_64-applebin_macos-darwin_x86_64-fastbuild/bin/ruby/tests/_objs/example_ext_lib/example_ext.o' -isysroot __BAZEL_XCODE_SDKROOT__ -F__BAZEL_XCODE_SDKROOT__/System/Library/Frameworks -F__BAZEL_XCODE_DEVELOPER_DIR__/Platforms/MacOSX.platform/Developer/Library/Frameworks '-mmacosx-version-min=12.0' -no-canonical-prefixes -Wno-builtin-macro-redefined '-D__DATE__="redacted"' '-D__TIMESTAMP__="redacted"' '-D__TIME__="redacted"' -target x86_64-apple-macosx -c ruby/tests/example_ext.c -o bazel-out/macos-x86_64-applebin_macos-darwin_x86_64-fastbuild/bin/ruby/tests/_objs/example_ext_lib/example_ext.o)
Execution platform: @local_config_platform//:host

Use --sandbox_debug to see verbose messages from the sandbox
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/defines.h:73:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/backward/2/attributes.h:43:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/attr/pure.h:25:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/assert.h:132:1: error: '__declspec' attributes are not enabled; use '-fdeclspec' or '-fms-extensions' to enable support for __declspec attributes
RBIMPL_ATTR_NORETURN()
^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/attr/noreturn.h:29:33: note: expanded from macro 'RBIMPL_ATTR_NORETURN'
# define RBIMPL_ATTR_NORETURN() __declspec(noreturn)
                                ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:24:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/anyargs.h:77:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/intern/vm.h:64:1: error: '__declspec' attributes are not enabled; use '-fdeclspec' or '-fms-extensions' to enable support for __declspec attributes
RBIMPL_ATTR_NORETURN()
^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/attr/noreturn.h:29:33: note: expanded from macro 'RBIMPL_ATTR_NORETURN'
# define RBIMPL_ATTR_NORETURN() __declspec(noreturn)
                                ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:25:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/char.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/int.h:26:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/long.h:70:1: error: '__declspec' attributes are not enabled; use '-fdeclspec' or '-fms-extensions' to enable support for __declspec attributes
RBIMPL_ATTR_NORETURN()
^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/attr/noreturn.h:29:33: note: expanded from macro 'RBIMPL_ATTR_NORETURN'
# define RBIMPL_ATTR_NORETURN() __declspec(noreturn)
                                ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:25:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/char.h:29:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:28:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rbasic.h:46:14: error: expected parameter declarator
RUBY_ALIGNAS(SIZEOF_VALUE)
             ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/value.h:41:23: note: expanded from macro 'SIZEOF_VALUE'
# define SIZEOF_VALUE SIZEOF_LONG
                      ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/x86_64-darwin20/ruby/config.h:64:21: note: expanded from macro 'SIZEOF_LONG'
#define SIZEOF_LONG 8
                    ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:25:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/char.h:29:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:28:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rbasic.h:46:14: error: expected ')'
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/value.h:41:23: note: expanded from macro 'SIZEOF_VALUE'
# define SIZEOF_VALUE SIZEOF_LONG
                      ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/x86_64-darwin20/ruby/config.h:64:21: note: expanded from macro 'SIZEOF_LONG'
#define SIZEOF_LONG 8
                    ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rbasic.h:46:1: note: to match this '('
RUBY_ALIGNAS(SIZEOF_VALUE)
^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/backward/2/stdalign.h:27:22: note: expanded from macro 'RUBY_ALIGNAS'
#define RUBY_ALIGNAS RBIMPL_ALIGNAS
                     ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/stdalign.h:66:44: note: expanded from macro 'RBIMPL_ALIGNAS'
# define RBIMPL_ALIGNAS(_) __declspec(align(_))
                                           ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:25:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/char.h:29:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:28:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rbasic.h:47:1: error: expected function body after function declarator
RBasic {
^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rbasic.h:82:23: error: incomplete definition of type 'struct RBasic'
    return RBASIC(obj)->klass;
           ~~~~~~~~~~~^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rbasic.h:82:12: note: forward declaration of 'struct RBasic'
    return RBASIC(obj)->klass;
           ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rbasic.h:34:50: note: expanded from macro 'RBASIC'
#define RBASIC(obj)          RBIMPL_CAST((struct RBasic *)(obj))
                                                 ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:25:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/char.h:29:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:30:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:35:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/value_type.h:157:28: error: incomplete definition of type 'struct RBasic'
    VALUE ret = RBASIC(obj)->flags & RUBY_T_MASK;
                ~~~~~~~~~~~^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/value_type.h:157:17: note: forward declaration of 'struct RBasic'
    VALUE ret = RBASIC(obj)->flags & RUBY_T_MASK;
                ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rbasic.h:34:50: note: expanded from macro 'RBASIC'
#define RBASIC(obj)          RBIMPL_CAST((struct RBasic *)(obj))
                                                 ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:25:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/char.h:29:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:30:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:237:23: error: incomplete definition of type 'struct RBasic'
    return RBASIC(obj)->flags & flags;
           ~~~~~~~~~~~^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:237:12: note: forward declaration of 'struct RBasic'
    return RBASIC(obj)->flags & flags;
           ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rbasic.h:34:50: note: expanded from macro 'RBASIC'
#define RBASIC(obj)          RBIMPL_CAST((struct RBasic *)(obj))
                                                 ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:25:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/char.h:29:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:30:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:285:1: error: '__declspec' attributes are not enabled; use '-fdeclspec' or '-fms-extensions' to enable support for __declspec attributes
RBIMPL_ATTR_NOALIAS()
^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/attr/noalias.h:53:32: note: expanded from macro 'RBIMPL_ATTR_NOALIAS'
# define RBIMPL_ATTR_NOALIAS() __declspec(noalias)
                               ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:25:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/char.h:29:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:30:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:290:8: error: incomplete definition of type 'struct RBasic'
    obj->flags |= flags;
    ~~~^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:288:30: note: forward declaration of 'struct RBasic'
rbimpl_fl_set_raw_raw(struct RBasic *obj, VALUE flags)
                             ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:310:1: error: '__declspec' attributes are not enabled; use '-fdeclspec' or '-fms-extensions' to enable support for __declspec attributes
RBIMPL_ATTR_NOALIAS()
^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/attr/noalias.h:53:32: note: expanded from macro 'RBIMPL_ATTR_NOALIAS'
# define RBIMPL_ATTR_NOALIAS() __declspec(noalias)
                               ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:25:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/char.h:29:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:30:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:315:8: error: incomplete definition of type 'struct RBasic'
    obj->flags &= ~flags;
    ~~~^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:313:32: note: forward declaration of 'struct RBasic'
rbimpl_fl_unset_raw_raw(struct RBasic *obj, VALUE flags)
                               ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:335:1: error: '__declspec' attributes are not enabled; use '-fdeclspec' or '-fms-extensions' to enable support for __declspec attributes
RBIMPL_ATTR_NOALIAS()
^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/attr/noalias.h:53:32: note: expanded from macro 'RBIMPL_ATTR_NOALIAS'
# define RBIMPL_ATTR_NOALIAS() __declspec(noalias)
                               ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:25:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/char.h:29:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:30:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:340:8: error: incomplete definition of type 'struct RBasic'
    obj->flags ^= flags;
    ~~~^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:338:34: note: forward declaration of 'struct RBasic'
rbimpl_fl_reverse_raw_raw(struct RBasic *obj, VALUE flags)
                                 ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:465:43: error: incomplete definition of type 'struct RBasic'
        if (RBASIC_CLASS(x) && !(RBASIC(x)->flags & RUBY_FL_SINGLETON)) {
                                 ~~~~~~~~~^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/fl_type.h:465:34: note: forward declaration of 'struct RBasic'
        if (RBASIC_CLASS(x) && !(RBASIC(x)->flags & RUBY_FL_SINGLETON)) {
                                 ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rbasic.h:34:50: note: expanded from macro 'RBASIC'
#define RBASIC(obj)          RBIMPL_CAST((struct RBasic *)(obj))
                                                 ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:25:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic.h:23:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/arithmetic/char.h:29:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:74:19: error: field has incomplete type 'struct RBasic'
    struct RBasic basic;
                  ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:74:12: note: forward declaration of 'struct RBasic'
    struct RBasic basic;
           ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:109:26: error: incomplete definition of type 'struct RBasic'
    VALUE f = RBASIC(str)->flags;
              ~~~~~~~~~~~^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:74:12: note: forward declaration of 'struct RBasic'
    struct RBasic basic;
           ^
In file included from ruby/tests/example_ext.c:1:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/ruby.h:26:
In file included from external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core.h:23:
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rarray.h:88:19: error: field has incomplete type 'struct RBasic'
    struct RBasic basic;
                  ^
external/org_ruby_lang_ruby_toolchain/Users/kig/.rbenv/versions/3.0.2/include/ruby-3.0.0/ruby/internal/core/rstring.h:74:12: note: forward declaration of 'struct RBasic'
    struct RBasic basic;
           ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
Error in child process '/usr/bin/xcrun'. 1
(01:16:49) INFO: Elapsed time: 19.949s, Critical Path: 0.51s
(01:16:49) INFO: 60 processes: 58 internal, 2 darwin-sandbox.
(01:16:49) FAILED: Build did NOT complete successfully
(01:16:49) FAILED: Build did NOT complete successfully