Error installing v0.18.1 on Ruby v3.4.8 on MacOSX x86

[afdev82]

I have updated to Ruby v3.4.8 and the v0.18.1 doesn't work anymore (it worked with Ruby v3.4.7).
It means that while building with native extensions, I get an error and I can't continue.

$ bundle
Fetching gem metadata from https://rubygems.org/........
Resolving dependencies...
Installing mini_racer 0.18.1 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    current directory: /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/mini_racer-0.18.1/ext/mini_racer_extension
/Users/antonio.facciolo/.rbenv/versions/3.4.8/bin/ruby extconf.rb
checking for -lpthread... yes
checking for -lobjc... yes
checking for whether -Wl,--exclude-libs=ALL  is accepted as LDFLAGS... no
creating Makefile

current directory: /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/mini_racer-0.18.1/ext/mini_racer_extension
make DESTDIR\= sitearchdir\=./.gem.20260105-54121-b5e9b7 sitelibdir\=./.gem.20260105-54121-b5e9b7 clean

current directory: /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/mini_racer-0.18.1/ext/mini_racer_extension
make DESTDIR\= sitearchdir\=./.gem.20260105-54121-b5e9b7 sitelibdir\=./.gem.20260105-54121-b5e9b7
compiling mini_racer_extension.c
In file included from mini_racer_extension.c:13:
./serde.c:101:27: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  101 |     n = next_power_of_two(n);
      |         ~~~~~~~~~~~~~~~~~ ^
./serde.c:111:14: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  111 |     b->cap = n;
      |            ~ ^
./serde.c:393:29: warning: implicit conversion loses integer precision: 'uint64_t' (aka 'unsigned long long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  393 |         des_object_ref(arg, u);
      |         ~~~~~~~~~~~~~~      ^
./serde.c:567:33: warning: implicit conversion loses integer precision: 'uint64_t' (aka 'unsigned long long') to 'int' [-Wshorten-64-to-32]
  567 |         des_bigint(arg, *p, u, 1-2*t);
      |         ~~~~~~~~~~             ~^~~~
mini_racer_extension.c:599:23: warning: incompatible pointer types passing 'unsigned long[64]' to parameter of type 'const uint64_t *' (aka 'const unsigned long long *')
[-Wincompatible-pointer-types]
  599 |         ser_bigint(s, limbs, countof(limbs), sign);
      |                       ^~~~~
./serde.c:269:48: note: passing argument to parameter 'p' here
  269 | static void ser_bigint(Ser *s, const uint64_t *p, size_t n, int sign)
      |                                                ^
mini_racer_extension.c:524:32: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  524 |             ser_array_begin(s, n);
      |             ~~~~~~~~~~~~~~~    ^
mini_racer_extension.c:528:30: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  528 |             ser_array_end(s, n);
      |             ~~~~~~~~~~~~~    ^
mini_racer_extension.c:530:31: warning: implicit conversion loses integer precision: 'long' to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  530 |             ser_object_ref(s, FIX2LONG(id));
      |             ~~~~~~~~~~~~~~    ^~~~~~~~~~~~
/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/ruby/internal/arithmetic/long.h:46:22: note: expanded from macro 'FIX2LONG'
   46 | #define FIX2LONG     RB_FIX2LONG          /**< @old{RB_FIX2LONG} */
      |                      ^
/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/ruby/internal/arithmetic/long.h:53:22: note: expanded from macro 'RB_FIX2LONG'
   53 | #define RB_FIX2LONG  rb_fix2long          /**< @alias{rb_fix2long} */
      |                      ^
mini_racer_extension.c:559:35: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  559 |                 ser_object_end(s, n);
      |                 ~~~~~~~~~~~~~~    ^
mini_racer_extension.c:564:31: warning: implicit conversion loses integer precision: 'long' to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  564 |             ser_object_ref(s, FIX2LONG(id));
      |             ~~~~~~~~~~~~~~    ^~~~~~~~~~~~
/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/ruby/internal/arithmetic/long.h:46:22: note: expanded from macro 'FIX2LONG'
   46 | #define FIX2LONG     RB_FIX2LONG          /**< @old{RB_FIX2LONG} */
      |                      ^
/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/ruby/internal/arithmetic/long.h:53:22: note: expanded from macro 'RB_FIX2LONG'
   53 | #define RB_FIX2LONG  rb_fix2long          /**< @alias{rb_fix2long} */
      |                      ^
mini_racer_extension.c:677:31: warning: implicit conversion loses integer precision: 'int64_t' (aka 'long long') to 'int' [-Wshorten-64-to-32]
  677 |     deadline = deadline_ms(c->timeout);
      |                ~~~~~~~~~~~ ~~~^~~~~~~
mini_racer_extension.c:758:43: warning: implicit conversion loses integer precision: 'int64_t' (aka 'long long') to 'int' [-Wshorten-64-to-32]
  758 |                 deadline = deadline_ms(c->idle_gc);
      |                            ~~~~~~~~~~~ ~~~^~~~~~~
12 warnings generated.
compiling mini_racer_v8.cc
make: *** [mini_racer_v8.o] Error 1

make failed, exit code 2

Gem files will remain installed in /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/mini_racer-0.18.1 for inspection.
Results logged to /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/extensions/x86_64-darwin-24/3.4.0/mini_racer-0.18.1/gem_make.out

  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/3.4.0/rubygems/ext/builder.rb:125:in 'Gem::Ext::Builder.run'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/3.4.0/rubygems/ext/builder.rb:51:in 'block in Gem::Ext::Builder.make'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/3.4.0/rubygems/ext/builder.rb:43:in 'Array#each'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/3.4.0/rubygems/ext/builder.rb:43:in 'Gem::Ext::Builder.make'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/3.4.0/rubygems/ext/ext_conf_builder.rb:44:in 'Gem::Ext::ExtConfBuilder.build'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/3.4.0/rubygems/ext/builder.rb:206:in 'Gem::Ext::Builder#build_extension'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/3.4.0/rubygems/ext/builder.rb:240:in 'block in Gem::Ext::Builder#build_extensions'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/3.4.0/rubygems/ext/builder.rb:237:in 'Array#each'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/3.4.0/rubygems/ext/builder.rb:237:in 'Gem::Ext::Builder#build_extensions'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/3.4.0/rubygems/installer.rb:844:in 'Gem::Installer#build_extensions'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/rubygems_gem_installer.rb:111:in 'Bundler::RubyGemsGemInstaller#build_extensions'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/rubygems_gem_installer.rb:30:in 'Bundler::RubyGemsGemInstaller#install'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/source/rubygems.rb:220:in 'Bundler::Source::Rubygems#install'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/installer/gem_installer.rb:55:in 'Bundler::GemInstaller#install'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/installer/gem_installer.rb:17:in 'Bundler::GemInstaller#install_from_spec'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/installer/parallel_installer.rb:133:in 'Bundler::ParallelInstaller#do_install'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/installer/parallel_installer.rb:124:in 'block in Bundler::ParallelInstaller#worker_pool'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/worker.rb:62:in 'Bundler::Worker#apply_func'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/worker.rb:57:in 'block in Bundler::Worker#process_queue'
  <internal:kernel>:168:in 'Kernel#loop'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/worker.rb:54:in 'Bundler::Worker#process_queue'
  /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/worker.rb:90:in 'block (2 levels) in Bundler::Worker#create_threads'

An error occurred while installing mini_racer (0.18.1), and Bundler cannot continue.

In Gemfile:
  mini_racer

MacOSX 15.7.2
Darwin 24.6.0
Ruby 3.4.8
Bundler 2.6.9 (also tried with 2.7.0)
Rubygems v3.6.7

On the same system, I have tried also the v0.19.1 with Ruby 3.4.7 and it's failing too (I have opened already an issue for that)
At the moment, the only working combination is v0.18.1 with Ruby 3.4.7.

[tisba]

This is quite a bit frustrating. I added the "recently" added macos-15-intel runners to CI and main build fine on macOS 15.7.3 (x86_64-darwin24) against Ruby 3.4.8 (see https://github.com/rubyjs/mini_racer/actions/runs/20715799507/job/59466555587?pr=389). The job compiles and tests the gem and also does a "gem install" with smoke tests.

I don't have any x86 Macs available and on my M1 Pro it compiles fine on macOS 15.7.3 against various Ruby 3.3, 3.4 and the current 4.0.0.

Could you please try the latest mini_racer 0.19.2? There should not be build related changes, but who knows 🤷

Also, please let us know gcc --version? The generated Makefiles in /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/mini_racer-0.18.1 and the logs from /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/extensions/x86_64-darwin-24/3.4.0/mini_racer-0.18.1/ could also be useful (

[afdev82]

Yes, for me too 😓

This is quite a bit frustrating.

GCC Version:

$ gcc --version
Apple clang version 17.0.0 (clang-1700.6.3.2)
Target: x86_64-apple-darwin24.6.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

Try with v0.19.2 and Ruby 3.4.8 (with 3.4.7 is failing too with almost the same tracelog).
gem_make.out in /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/extensions/x86_64-darwin-24/3.4.0/mini_racer-0.19.2:

current directory: /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/mini_racer-0.19.2/ext/mini_racer_extension
/Users/antonio.facciolo/.rbenv/versions/3.4.8/bin/ruby extconf.rb
checking for -lpthread... yes
checking for -lobjc... yes
checking for whether -Wl,--exclude-libs=ALL  is accepted as LDFLAGS... no
creating Makefile

current directory: /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/mini_racer-0.19.2/ext/mini_racer_extension
make DESTDIR\= sitearchdir\=./.gem.20260105-61230-xixssi sitelibdir\=./.gem.20260105-61230-xixssi clean

current directory: /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/mini_racer-0.19.2/ext/mini_racer_extension
make DESTDIR\= sitearchdir\=./.gem.20260105-61230-xixssi sitelibdir\=./.gem.20260105-61230-xixssi
compiling mini_racer_extension.c
In file included from mini_racer_extension.c:37:
./serde.c:101:27: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  101 |     n = next_power_of_two(n);
      |         ~~~~~~~~~~~~~~~~~ ^
./serde.c:111:14: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  111 |     b->cap = n;
      |            ~ ^
./serde.c:402:29: warning: implicit conversion loses integer precision: 'uint64_t' (aka 'unsigned long long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  402 |         des_object_ref(arg, u);
      |         ~~~~~~~~~~~~~~      ^
./serde.c:576:33: warning: implicit conversion loses integer precision: 'uint64_t' (aka 'unsigned long long') to 'int' [-Wshorten-64-to-32]
  576 |         des_bigint(arg, *p, u, 1-2*t);
      |         ~~~~~~~~~~             ~^~~~
mini_racer_extension.c:672:23: warning: incompatible pointer types passing 'unsigned long[64]' to parameter of type 'const uint64_t *' (aka 'const unsigned long long *') [-Wincompatible-pointer-types]
  672 |         ser_bigint(s, limbs, countof(limbs), sign);
      |                       ^~~~~
./serde.c:247:48: note: passing argument to parameter 'p' here
  247 | static void ser_bigint(Ser *s, const uint64_t *p, size_t n, int sign)
      |                                                ^
mini_racer_extension.c:593:36: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  593 |                 ser_array_begin(s, n);
      |                 ~~~~~~~~~~~~~~~    ^
mini_racer_extension.c:597:34: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  597 |                 ser_array_end(s, n);
      |                 ~~~~~~~~~~~~~    ^
mini_racer_extension.c:599:35: warning: implicit conversion loses integer precision: 'long' to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  599 |                 ser_object_ref(s, FIX2LONG(id));
      |                 ~~~~~~~~~~~~~~    ^~~~~~~~~~~~
/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/ruby/internal/arithmetic/long.h:46:22: note: expanded from macro 'FIX2LONG'
   46 | #define FIX2LONG     RB_FIX2LONG          /**< @old{RB_FIX2LONG} */
      |                      ^
/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/ruby/internal/arithmetic/long.h:53:22: note: expanded from macro 'RB_FIX2LONG'
   53 | #define RB_FIX2LONG  rb_fix2long          /**< @alias{rb_fix2long} */
      |                      ^
mini_racer_extension.c:631:39: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  631 |                     ser_object_end(s, n);
      |                     ~~~~~~~~~~~~~~    ^
mini_racer_extension.c:636:35: warning: implicit conversion loses integer precision: 'long' to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  636 |                 ser_object_ref(s, FIX2LONG(id));
      |                 ~~~~~~~~~~~~~~    ^~~~~~~~~~~~
/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/ruby/internal/arithmetic/long.h:46:22: note: expanded from macro 'FIX2LONG'
   46 | #define FIX2LONG     RB_FIX2LONG          /**< @old{RB_FIX2LONG} */
      |                      ^
/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/ruby/internal/arithmetic/long.h:53:22: note: expanded from macro 'RB_FIX2LONG'
   53 | #define RB_FIX2LONG  rb_fix2long          /**< @alias{rb_fix2long} */
      |                      ^
mini_racer_extension.c:752:31: warning: implicit conversion loses integer precision: 'int64_t' (aka 'long long') to 'int' [-Wshorten-64-to-32]
  752 |     deadline = deadline_ms(c->timeout);
      |                ~~~~~~~~~~~ ~~~^~~~~~~
mini_racer_extension.c:833:43: warning: implicit conversion loses integer precision: 'int64_t' (aka 'long long') to 'int' [-Wshorten-64-to-32]
  833 |                 deadline = deadline_ms(c->idle_gc);
      |                            ~~~~~~~~~~~ ~~~^~~~~~~
12 warnings generated.
compiling mini_racer_v8.cc
make: *** [mini_racer_v8.o] Error 1

make failed, exit code 2

I have also the mkmf.log in /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/extensions/x86_64-darwin-24/3.4.0/mini_racer-0.19.2:

have_library: checking for -lpthread... -------------------- yes

DYLD_LIBRARY_PATH=.:/Users/antonio.facciolo/.rbenv/versions/3.4.8/lib ASAN_OPTIONS=detect_leaks=0 "clang -o conftest -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/x86_64-darwin24 -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/ruby/backward -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef  -fno-common -pipe conftest.c -L. -L/Users/antonio.facciolo/.rbenv/versions/3.4.8/lib -L. -fstack-protector-strong -L/usr/local/Cellar/gmp/6.3.0/lib     -lruby.3.4  -lpthread  "
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main(int argc, char **argv)
4: {
5:   return !!argv[argc];
6: }
/* end */

DYLD_LIBRARY_PATH=.:/Users/antonio.facciolo/.rbenv/versions/3.4.8/lib ASAN_OPTIONS=detect_leaks=0 "clang -o conftest -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/x86_64-darwin24 -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/ruby/backward -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef  -fno-common -pipe conftest.c -L. -L/Users/antonio.facciolo/.rbenv/versions/3.4.8/lib -L. -fstack-protector-strong -L/usr/local/Cellar/gmp/6.3.0/lib     -lruby.3.4 -lpthread  -lpthread  "
ld: warning: ignoring duplicate libraries: '-lpthread'
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     int (* volatile tp)(void)=(int (*)(void))&t;
 9:     printf("%d", (*tp)());
10:   }
11: 
12:   return !!argv[argc];
13: }
14: 
15: int t(void) { ; return 0; }
/* end */

--------------------

have_library: checking for -lobjc... -------------------- yes

DYLD_LIBRARY_PATH=.:/Users/antonio.facciolo/.rbenv/versions/3.4.8/lib ASAN_OPTIONS=detect_leaks=0 "clang -o conftest -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/x86_64-darwin24 -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/ruby/backward -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef  -fno-common -pipe conftest.c -L. -L/Users/antonio.facciolo/.rbenv/versions/3.4.8/lib -L. -fstack-protector-strong -L/usr/local/Cellar/gmp/6.3.0/lib    -lpthread  -lruby.3.4 -lobjc -lpthread  -lpthread  "
ld: warning: ignoring duplicate libraries: '-lpthread'
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     int (* volatile tp)(void)=(int (*)(void))&t;
 9:     printf("%d", (*tp)());
10:   }
11: 
12:   return !!argv[argc];
13: }
14: 
15: int t(void) { ; return 0; }
/* end */

--------------------

append_ldflags: checking for whether -Wl,--exclude-libs=ALL  is accepted as LDFLAGS... -------------------- no

DYLD_LIBRARY_PATH=.:/Users/antonio.facciolo/.rbenv/versions/3.4.8/lib ASAN_OPTIONS=detect_leaks=0 "clang -o conftest -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/libv8-node-24.12.0.1-x86_64-darwin/vendor/v8/include -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/x86_64-darwin24 -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0/ruby/backward -I/Users/antonio.facciolo/.rbenv/versions/3.4.8/include/ruby-3.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef  -fno-common -pipe conftest.c -L. -L/Users/antonio.facciolo/.rbenv/versions/3.4.8/lib /Users/antonio.facciolo/.rbenv/versions/3.4.8/lib/ruby/gems/3.4.0/gems/libv8-node-24.12.0.1-x86_64-darwin/vendor/v8/x86_64-darwin/libv8/obj/libv8_monolith.a  -stdlib=libc++ -L. -fstack-protector-strong -L/usr/local/Cellar/gmp/6.3.0/lib -Wl,--exclude-libs=ALL    -lobjc -lpthread  -lruby.3.4  -lpthread  "
clang: warning: argument unused during compilation: '-stdlib=libc++' [-Wunused-command-line-argument]
ld: unknown options: --exclude-libs=ALL 
clang: error: linker command failed with exit code 1 (use -v to see invocation)
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main(int argc, char **argv)
4: {
5:   return !!argv[argc];
6: }
/* end */

--------------------

Many thanks for supporting.

[tisba]

hmm, not sure how to proceed here. I only see warnings, no errors :(

Any idea how to troubleshoot this further? /cc @SamSaffron @lloeki

[afdev82]

Yes, the same thing I have seen.
But if I try with v0.19.2 and Ruby 3.4.7, I see one error at the end, this is the full tracelog I get:

$ bundle
Fetching gem metadata from https://rubygems.org/........
Resolving dependencies...
Using libv8-node 24.12.0.1 (x86_64-darwin) (was 23.6.1.0)
Installing mini_racer 0.19.2 (was 0.18.1) with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    current directory: /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/mini_racer-0.19.2/ext/mini_racer_extension
/Users/antonio.facciolo/.rbenv/versions/3.4.7/bin/ruby extconf.rb
checking for -lpthread... yes
checking for -lobjc... yes
checking for whether -Wl,--exclude-libs=ALL  is accepted as LDFLAGS... no
creating Makefile

current directory: /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/mini_racer-0.19.2/ext/mini_racer_extension
make DESTDIR\= sitearchdir\=./.gem.20260105-60480-vmq7kh sitelibdir\=./.gem.20260105-60480-vmq7kh clean

current directory: /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/mini_racer-0.19.2/ext/mini_racer_extension
make DESTDIR\= sitearchdir\=./.gem.20260105-60480-vmq7kh sitelibdir\=./.gem.20260105-60480-vmq7kh
compiling mini_racer_extension.c
In file included from mini_racer_extension.c:37:
./serde.c:101:27: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  101 |     n = next_power_of_two(n);
      |         ~~~~~~~~~~~~~~~~~ ^
./serde.c:111:14: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  111 |     b->cap = n;
      |            ~ ^
./serde.c:402:29: warning: implicit conversion loses integer precision: 'uint64_t' (aka 'unsigned long long') to 'uint32_t' (aka 'unsigned int')
[-Wshorten-64-to-32]
  402 |         des_object_ref(arg, u);
      |         ~~~~~~~~~~~~~~      ^
./serde.c:576:33: warning: implicit conversion loses integer precision: 'uint64_t' (aka 'unsigned long long') to 'int' [-Wshorten-64-to-32]
  576 |         des_bigint(arg, *p, u, 1-2*t);
      |         ~~~~~~~~~~             ~^~~~
mini_racer_extension.c:672:23: warning: incompatible pointer types passing 'unsigned long[64]' to parameter of type 'const uint64_t *' (aka 'const unsigned long
long *') [-Wincompatible-pointer-types]
  672 |         ser_bigint(s, limbs, countof(limbs), sign);
      |                       ^~~~~
./serde.c:247:48: note: passing argument to parameter 'p' here
  247 | static void ser_bigint(Ser *s, const uint64_t *p, size_t n, int sign)
      |                                                ^
mini_racer_extension.c:593:36: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int')
[-Wshorten-64-to-32]
  593 |                 ser_array_begin(s, n);
      |                 ~~~~~~~~~~~~~~~    ^
mini_racer_extension.c:597:34: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int')
[-Wshorten-64-to-32]
  597 |                 ser_array_end(s, n);
      |                 ~~~~~~~~~~~~~    ^
mini_racer_extension.c:599:35: warning: implicit conversion loses integer precision: 'long' to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  599 |                 ser_object_ref(s, FIX2LONG(id));
      |                 ~~~~~~~~~~~~~~    ^~~~~~~~~~~~
/Users/antonio.facciolo/.rbenv/versions/3.4.7/include/ruby-3.4.0/ruby/internal/arithmetic/long.h:46:22: note: expanded from macro 'FIX2LONG'
   46 | #define FIX2LONG     RB_FIX2LONG          /**< @old{RB_FIX2LONG} */
      |                      ^
/Users/antonio.facciolo/.rbenv/versions/3.4.7/include/ruby-3.4.0/ruby/internal/arithmetic/long.h:53:22: note: expanded from macro 'RB_FIX2LONG'
   53 | #define RB_FIX2LONG  rb_fix2long          /**< @alias{rb_fix2long} */
      |                      ^
mini_racer_extension.c:631:39: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int')
[-Wshorten-64-to-32]
  631 |                     ser_object_end(s, n);
      |                     ~~~~~~~~~~~~~~    ^
mini_racer_extension.c:636:35: warning: implicit conversion loses integer precision: 'long' to 'uint32_t' (aka 'unsigned int') [-Wshorten-64-to-32]
  636 |                 ser_object_ref(s, FIX2LONG(id));
      |                 ~~~~~~~~~~~~~~    ^~~~~~~~~~~~
/Users/antonio.facciolo/.rbenv/versions/3.4.7/include/ruby-3.4.0/ruby/internal/arithmetic/long.h:46:22: note: expanded from macro 'FIX2LONG'
   46 | #define FIX2LONG     RB_FIX2LONG          /**< @old{RB_FIX2LONG} */
      |                      ^
/Users/antonio.facciolo/.rbenv/versions/3.4.7/include/ruby-3.4.0/ruby/internal/arithmetic/long.h:53:22: note: expanded from macro 'RB_FIX2LONG'
   53 | #define RB_FIX2LONG  rb_fix2long          /**< @alias{rb_fix2long} */
      |                      ^
mini_racer_extension.c:752:31: warning: implicit conversion loses integer precision: 'int64_t' (aka 'long long') to 'int' [-Wshorten-64-to-32]
  752 |     deadline = deadline_ms(c->timeout);
      |                ~~~~~~~~~~~ ~~~^~~~~~~
mini_racer_extension.c:833:43: warning: implicit conversion loses integer precision: 'int64_t' (aka 'long long') to 'int' [-Wshorten-64-to-32]
  833 |                 deadline = deadline_ms(c->idle_gc);
      |                            ~~~~~~~~~~~ ~~~^~~~~~~
12 warnings generated.
compiling mini_racer_v8.cc
clang++: warning: argument unused during compilation: '-rdynamic' [-Wunused-command-line-argument]
In file included from mini_racer_v8.cc:1:
/Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/libv8-node-24.12.0.1-x86_64-darwin/vendor/v8/include/v8.h:21:10: fatal error: 'memory' file
not found
   21 | #include <memory>
      |          ^~~~~~~~
1 error generated.
make: *** [mini_racer_v8.o] Error 1

make failed, exit code 2

Gem files will remain installed in /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/mini_racer-0.19.2 for inspection.
Results logged to /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/extensions/x86_64-darwin-21/3.4.0/mini_racer-0.19.2/gem_make.out

  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/3.4.0/rubygems/ext/builder.rb:125:in 'Gem::Ext::Builder.run'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/3.4.0/rubygems/ext/builder.rb:51:in 'block in Gem::Ext::Builder.make'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/3.4.0/rubygems/ext/builder.rb:43:in 'Array#each'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/3.4.0/rubygems/ext/builder.rb:43:in 'Gem::Ext::Builder.make'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/3.4.0/rubygems/ext/ext_conf_builder.rb:44:in 'Gem::Ext::ExtConfBuilder.build'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/3.4.0/rubygems/ext/builder.rb:206:in 'Gem::Ext::Builder#build_extension'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/3.4.0/rubygems/ext/builder.rb:240:in 'block in Gem::Ext::Builder#build_extensions'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/3.4.0/rubygems/ext/builder.rb:237:in 'Array#each'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/3.4.0/rubygems/ext/builder.rb:237:in 'Gem::Ext::Builder#build_extensions'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/3.4.0/rubygems/installer.rb:844:in 'Gem::Installer#build_extensions'
/Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/rubygems_gem_installer.rb:111:in
'Bundler::RubyGemsGemInstaller#build_extensions'
/Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/rubygems_gem_installer.rb:30:in
'Bundler::RubyGemsGemInstaller#install'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/source/rubygems.rb:220:in 'Bundler::Source::Rubygems#install'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/installer/gem_installer.rb:55:in 'Bundler::GemInstaller#install'
/Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/installer/gem_installer.rb:17:in
'Bundler::GemInstaller#install_from_spec'
/Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/installer/parallel_installer.rb:133:in
'Bundler::ParallelInstaller#do_install'
/Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/installer/parallel_installer.rb:124:in 'block in
Bundler::ParallelInstaller#worker_pool'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/worker.rb:62:in 'Bundler::Worker#apply_func'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/worker.rb:57:in 'block in Bundler::Worker#process_queue'
  <internal:kernel>:168:in 'Kernel#loop'
  /Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/worker.rb:54:in 'Bundler::Worker#process_queue'
/Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/bundler-2.7.0/lib/bundler/worker.rb:90:in 'block (2 levels) in
Bundler::Worker#create_threads'

An error occurred while installing mini_racer (0.19.2), and Bundler cannot continue.

In Gemfile:
  mini_racer

There is this line more with one error:

clang++: warning: argument unused during compilation: '-rdynamic' [-Wunused-command-line-argument]
In file included from mini_racer_v8.cc:1:
/Users/antonio.facciolo/.rbenv/versions/3.4.7/lib/ruby/gems/3.4.0/gems/libv8-node-24.12.0.1-x86_64-darwin/vendor/v8/include/v8.h:21:10: fatal error: 'memory' file
not found
   21 | #include <memory>
      |          ^~~~~~~~
1 error generated.