Ruby 3.0.0 - Build failed on macOS 15.2 on arm64 M3

[spachari-im]

I am attempting to install Ruby 3.0.0 on MacOS (M3). I ran rbenv install 3.0.0. Can you please help?

This is the default arguments shown in the logs:

-> ./configure "--prefix=$HOME/.rbenv/versions/3.0.0" --with-openssl-dir=/opt/homebrew/opt/openssl@1.1 --enable-shared --with-readline-dir=/opt/homebrew/opt/readline --with-libyaml-dir=/opt/homebrew/opt/libyaml --with-gmp-dir=/opt/homebrew/opt/gmp --with-ext=openssl,psych,+

And see the following error:

BUILD FAILED (macOS 15.2 on arm64 using ruby-build 20250121)

Here are the errors from the log file:

linking shared-object -test-/wait_for_single_fd.bundle
compiling nofree.c
bigdecimal.c:249:5: error: 'maybe_unused' attribute cannot be applied to types
  249 |     ENTER(1);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:372:5: error: 'maybe_unused' attribute cannot be applied to types
  372 |     ENTER(1);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:405:5: error: 'maybe_unused' attribute cannot be applied to types
  405 |     ENTER(1);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:456:5: error: 'maybe_unused' attribute cannot be applied to types
  456 |     ENTER(1);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:490:5: error: 'maybe_unused' attribute cannot be applied to types
  490 |     ENTER(1);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:519:5: error: 'maybe_unused' attribute cannot be applied to types
  519 |     ENTER(5);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:541:5: error: 'maybe_unused' attribute cannot be applied to types
  541 |     ENTER(2);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:861:5: error: 'maybe_unused' attribute cannot be applied to types
  861 |     ENTER(5);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  compiling date_core.c
168compiling normalize.c
 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:908:5: error: 'maybe_unused' attribute cannot be applied to types
  908 |     ENTER(1);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:1001:5: error: 'maybe_unused' attribute cannot be applied to types
 1001 |     ENTER(2);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:1058:5: error: 'maybe_unused' attribute cannot be applied to types
 1058 |     ENTER(5);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:1116:5: error: 'maybe_unused' attribute cannot be applied to types
 1116 |     ENTER(5);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:1157:5: error: 'maybe_unused' attribute cannot be applied to types
 1157 |     ENTER(5);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
compiling dbm.c
bigdecimal.c:1353:5: error: 'maybe_unused' attribute cannot be applied to types
 1353 |     ENTER(5);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:1379:5: error: 'maybe_unused' attribute cannot be applied to types
 1379 |     ENTER(5);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:1407:5: error: 'maybe_unused' attribute cannot be applied to types
 1407 |     ENTER(5);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:1449:5: error: 'maybe_unused' attribute cannot be applied to types
 1449 |     ENTER(5);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_Vcompiling ARdigest.c
(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:1472:5: error: 'maybe_unused' attribute cannot be applied to types
 1472 |     ENTER(8);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
bigdecimal.c:1560:5: error: 'maybe_unused' attribute cannot be applied to types
 1560 |     ENTER(3);
      |     ^
bigdecimal.c:68:33: note: expanded from macro 'ENTER'
   68 | #define ENTER(n) volatile VALUE RB_UNUSED_VAR(vStack[n]);int iStack=0
      |                                 ^
../.././include/ruby/backward/2/attributes.h:168:28: note: expanded from macro 'RB_UNUSED_VAR'
  168 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED()
      |                            ^
../.././include/ruby/internal/attr/maybe_unused.h:31:39: note: expanded from macro 'RBIMPL_ATTR_MAYBE_UNUSED'
   31 | # define RBIMPL_compiling qsort.c
ATTR_MAYBE_UNUSED() [[maybe_unused]]
      |                                       ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
installing default coverage libraries
compiling date_parse.c
compiling etc.c
linking shared-object continuation.bundle
20 errors generated.
compiling fcntl.c
make[2]: *** [bigdecimal.o] Error 1
make[2]: *** Waiting for unfinished jobs....
linking shared-object cgi/escape.bundle
make[1]: *** [ext/bigdecimal/all] Error 2
make[1]: *** Waiting for unfinished jobs....
compiling rb_interned_str.c
compiling date_strftime.c
installing default digest libraries
compiling fiber.c
compiling rb_str_dup.c
linking shared-object coverage.bundle
installing digest libraries
compiling set_len.c
compiling date_strptime.c
In file included from date_parse.c:362:
zonetab.list:6:27: warning: a function declaration without a prototype is deprecated in all versions of C and is treated as a zero-parameter prototype in C2x, conflicting with a subsequent definition [-Wdeprecated-non-prototype]
    6 | static conlinking shared-object fiber.bundle
st struct zone *zonetab();
      |                           ^
zonetab.list:774:1: note: conflicting prototype is here
  774 | zonetab (register const char *str, register size_t len)
      | ^
etc.c:51:7: warning: a function declaration without a prototype is deprecated in all versions of C and is treated as a zero-parameter prototype in C2x, conflicting with a previous declaration [-Wdeprecated-non-prototype]
   51 | char *getenv();
      |       ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_stdlib.h:143:7: note: conflicting prototype is here
  143 | char    *getenv(const char *);
      |          ^
linking shared-object fcntl.bundle
linking shared-object digest.bundle
1 warning generated.
linking shared-object dbm.bundle
linking shared-object etc.bundle
linking shared-object -test-/string.bundle
1 warning generated.
linking shared-object date_core.bundle
make: *** [build-ext] Error 2
external command failed with status 2

[mislav]

Hi, this is due to a bug in Ruby 3.0 which will never get fixed because 3.0 is not maintained anymore. It needs a patch: #2185 (comment)

Note that my suggestion installs Ruby 3.0.7, which I generally recommend over installing Ruby 3.0.0 since 3.0.7 is slightly newer and will have fewer bugs.